diff --git a/src/main/java/com/adyen/model/balanceplatform/AULocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/AULocalAccountIdentification.java
index fc9b5cafd..4d4bb84eb 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AULocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AULocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class AULocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_BSB_CODE = "bsbCode";
   private String bsbCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBsbCode = false;
+
   /** **auLocal** */
   public enum TypeEnum {
     AULOCAL(String.valueOf("auLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AULocalAccountIdentification() {}
 
   /**
@@ -86,6 +103,7 @@ public AULocalAccountIdentification() {}
    */
   public AULocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -109,6 +127,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -121,6 +140,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public AULocalAccountIdentification bsbCode(String bsbCode) {
     this.bsbCode = bsbCode;
+    isSetBsbCode = true; // mark as set
     return this;
   }
 
@@ -148,6 +168,7 @@ public String getBsbCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBsbCode(String bsbCode) {
     this.bsbCode = bsbCode;
+    isSetBsbCode = true; // mark as set
   }
 
   /**
@@ -158,6 +179,7 @@ public void setBsbCode(String bsbCode) {
    */
   public AULocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -181,6 +203,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AULocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AULocalAccountIdentification object is equal to o. */
@@ -224,6 +267,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetBsbCode) {
+      addIfNull(nulls, JSON_PROPERTY_BSB_CODE, this.bsbCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AULocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AccountHolder.java b/src/main/java/com/adyen/model/balanceplatform/AccountHolder.java
index 7051c52ce..e8cc6e79f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AccountHolder.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AccountHolder.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -44,35 +46,65 @@ public class AccountHolder {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private Map<String, AccountHolderCapability> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_CONTACT_DETAILS = "contactDetails";
   @Deprecated // deprecated
   private ContactDetails contactDetails;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContactDetails = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_LEGAL_ENTITY_ID = "legalEntityId";
   private String legalEntityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLegalEntityId = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE =
       "migratedAccountHolderCode";
   private String migratedAccountHolderCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountHolderCode = false;
+
   public static final String JSON_PROPERTY_PRIMARY_BALANCE_ACCOUNT = "primaryBalanceAccount";
   private String primaryBalanceAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPrimaryBalanceAccount = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * The status of the account holder. Possible values: * **active**: The account holder is active
    * and allowed to use its capabilities. This is the initial status for account holders and balance
@@ -126,12 +158,27 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
   public static final String JSON_PROPERTY_VERIFICATION_DEADLINES = "verificationDeadlines";
   private List<VerificationDeadline> verificationDeadlines;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVerificationDeadlines = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AccountHolder() {}
 
   @JsonCreator
@@ -160,6 +207,7 @@ public AccountHolder(
    */
   public AccountHolder balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -195,6 +243,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -210,6 +259,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public AccountHolder capabilities(Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
     return this;
   }
 
@@ -251,6 +301,7 @@ public Map<String, AccountHolderCapability> getCapabilities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
   }
 
   /**
@@ -263,6 +314,7 @@ public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
   @Deprecated // deprecated
   public AccountHolder contactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
     return this;
   }
 
@@ -290,6 +342,7 @@ public ContactDetails getContactDetails() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
   }
 
   /**
@@ -300,6 +353,7 @@ public void setContactDetails(ContactDetails contactDetails) {
    */
   public AccountHolder description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -323,6 +377,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -350,6 +405,7 @@ public String getId() {
    */
   public AccountHolder legalEntityId(String legalEntityId) {
     this.legalEntityId = legalEntityId;
+    isSetLegalEntityId = true; // mark as set
     return this;
   }
 
@@ -385,6 +441,7 @@ public String getLegalEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLegalEntityId(String legalEntityId) {
     this.legalEntityId = legalEntityId;
+    isSetLegalEntityId = true; // mark as set
   }
 
   /**
@@ -400,6 +457,7 @@ public void setLegalEntityId(String legalEntityId) {
    */
   public AccountHolder metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -441,6 +499,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -467,6 +526,7 @@ public String getMigratedAccountHolderCode() {
    */
   public AccountHolder primaryBalanceAccount(String primaryBalanceAccount) {
     this.primaryBalanceAccount = primaryBalanceAccount;
+    isSetPrimaryBalanceAccount = true; // mark as set
     return this;
   }
 
@@ -498,6 +558,7 @@ public String getPrimaryBalanceAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPrimaryBalanceAccount(String primaryBalanceAccount) {
     this.primaryBalanceAccount = primaryBalanceAccount;
+    isSetPrimaryBalanceAccount = true; // mark as set
   }
 
   /**
@@ -508,6 +569,7 @@ public void setPrimaryBalanceAccount(String primaryBalanceAccount) {
    */
   public AccountHolder reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -531,6 +593,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -552,6 +615,7 @@ public void setReference(String reference) {
    */
   public AccountHolder status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -597,6 +661,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -612,6 +677,7 @@ public void setStatus(StatusEnum status) {
    */
   public AccountHolder timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -645,6 +711,7 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
   }
 
   /**
@@ -660,6 +727,26 @@ public List<VerificationDeadline> getVerificationDeadlines() {
     return verificationDeadlines;
   }
 
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AccountHolder includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+  }
+
   /** Return true if this AccountHolder object is equal to o. */
   @Override
   public boolean equals(Object o) {
@@ -740,6 +827,66 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetContactDetails) {
+      addIfNull(nulls, JSON_PROPERTY_CONTACT_DETAILS, this.contactDetails);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetLegalEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_LEGAL_ENTITY_ID, this.legalEntityId);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountHolderCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE, this.migratedAccountHolderCode);
+    }
+    if (isSetPrimaryBalanceAccount) {
+      addIfNull(nulls, JSON_PROPERTY_PRIMARY_BALANCE_ACCOUNT, this.primaryBalanceAccount);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+    if (isSetVerificationDeadlines) {
+      addIfNull(nulls, JSON_PROPERTY_VERIFICATION_DEADLINES, this.verificationDeadlines);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AccountHolder given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AccountHolderCapability.java b/src/main/java/com/adyen/model/balanceplatform/AccountHolderCapability.java
index 4185adeb4..3806e06bf 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AccountHolderCapability.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AccountHolderCapability.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -39,6 +41,9 @@ public class AccountHolderCapability {
   public static final String JSON_PROPERTY_ALLOWED = "allowed";
   private Boolean allowed;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAllowed = false;
+
   /**
    * The capability level that is allowed for the account holder. Possible values:
    * **notApplicable**, **low**, **medium**, **high**.
@@ -90,18 +95,33 @@ public static AllowedLevelEnum fromValue(String value) {
   public static final String JSON_PROPERTY_ALLOWED_LEVEL = "allowedLevel";
   private AllowedLevelEnum allowedLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAllowedLevel = false;
+
   public static final String JSON_PROPERTY_ALLOWED_SETTINGS = "allowedSettings";
   private CapabilitySettings allowedSettings;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAllowedSettings = false;
+
   public static final String JSON_PROPERTY_ENABLED = "enabled";
   private Boolean enabled;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEnabled = false;
+
   public static final String JSON_PROPERTY_PROBLEMS = "problems";
   private List<CapabilityProblem> problems;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetProblems = false;
+
   public static final String JSON_PROPERTY_REQUESTED = "requested";
   private Boolean requested;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequested = false;
+
   /**
    * The requested level of the capability. Some capabilities, such as those used in [card
    * issuing](https://docs.adyen.com/issuing/add-capabilities#capability-levels), have different
@@ -155,12 +175,21 @@ public static RequestedLevelEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REQUESTED_LEVEL = "requestedLevel";
   private RequestedLevelEnum requestedLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestedLevel = false;
+
   public static final String JSON_PROPERTY_REQUESTED_SETTINGS = "requestedSettings";
   private CapabilitySettings requestedSettings;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestedSettings = false;
+
   public static final String JSON_PROPERTY_TRANSFER_INSTRUMENTS = "transferInstruments";
   private List<AccountSupportingEntityCapability> transferInstruments;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferInstruments = false;
+
   /**
    * The status of the verification checks for the capability. Possible values: * **pending**: Adyen
    * is running the verification. * **invalid**: The verification failed. Check if the
@@ -215,6 +244,15 @@ public static VerificationStatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VERIFICATION_STATUS = "verificationStatus";
   private VerificationStatusEnum verificationStatus;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVerificationStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AccountHolderCapability() {}
 
   @JsonCreator
@@ -267,6 +305,7 @@ public AllowedLevelEnum getAllowedLevel() {
    */
   public AccountHolderCapability allowedSettings(CapabilitySettings allowedSettings) {
     this.allowedSettings = allowedSettings;
+    isSetAllowedSettings = true; // mark as set
     return this;
   }
 
@@ -290,6 +329,7 @@ public CapabilitySettings getAllowedSettings() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAllowedSettings(CapabilitySettings allowedSettings) {
     this.allowedSettings = allowedSettings;
+    isSetAllowedSettings = true; // mark as set
   }
 
   /**
@@ -302,6 +342,7 @@ public void setAllowedSettings(CapabilitySettings allowedSettings) {
    */
   public AccountHolderCapability enabled(Boolean enabled) {
     this.enabled = enabled;
+    isSetEnabled = true; // mark as set
     return this;
   }
 
@@ -329,6 +370,7 @@ public Boolean getEnabled() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEnabled(Boolean enabled) {
     this.enabled = enabled;
+    isSetEnabled = true; // mark as set
   }
 
   /**
@@ -353,6 +395,7 @@ public List<CapabilityProblem> getProblems() {
    */
   public AccountHolderCapability requested(Boolean requested) {
     this.requested = requested;
+    isSetRequested = true; // mark as set
     return this;
   }
 
@@ -380,6 +423,7 @@ public Boolean getRequested() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequested(Boolean requested) {
     this.requested = requested;
+    isSetRequested = true; // mark as set
   }
 
   /**
@@ -397,6 +441,7 @@ public void setRequested(Boolean requested) {
    */
   public AccountHolderCapability requestedLevel(RequestedLevelEnum requestedLevel) {
     this.requestedLevel = requestedLevel;
+    isSetRequestedLevel = true; // mark as set
     return this;
   }
 
@@ -434,6 +479,7 @@ public RequestedLevelEnum getRequestedLevel() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestedLevel(RequestedLevelEnum requestedLevel) {
     this.requestedLevel = requestedLevel;
+    isSetRequestedLevel = true; // mark as set
   }
 
   /**
@@ -444,6 +490,7 @@ public void setRequestedLevel(RequestedLevelEnum requestedLevel) {
    */
   public AccountHolderCapability requestedSettings(CapabilitySettings requestedSettings) {
     this.requestedSettings = requestedSettings;
+    isSetRequestedSettings = true; // mark as set
     return this;
   }
 
@@ -467,6 +514,7 @@ public CapabilitySettings getRequestedSettings() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestedSettings(CapabilitySettings requestedSettings) {
     this.requestedSettings = requestedSettings;
+    isSetRequestedSettings = true; // mark as set
   }
 
   /**
@@ -500,6 +548,26 @@ public VerificationStatusEnum getVerificationStatus() {
     return verificationStatus;
   }
 
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AccountHolderCapability includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+  }
+
   /** Return true if this AccountHolderCapability object is equal to o. */
   @Override
   public boolean equals(Object o) {
@@ -567,6 +635,57 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAllowed) {
+      addIfNull(nulls, JSON_PROPERTY_ALLOWED, this.allowed);
+    }
+    if (isSetAllowedLevel) {
+      addIfNull(nulls, JSON_PROPERTY_ALLOWED_LEVEL, this.allowedLevel);
+    }
+    if (isSetAllowedSettings) {
+      addIfNull(nulls, JSON_PROPERTY_ALLOWED_SETTINGS, this.allowedSettings);
+    }
+    if (isSetEnabled) {
+      addIfNull(nulls, JSON_PROPERTY_ENABLED, this.enabled);
+    }
+    if (isSetProblems) {
+      addIfNull(nulls, JSON_PROPERTY_PROBLEMS, this.problems);
+    }
+    if (isSetRequested) {
+      addIfNull(nulls, JSON_PROPERTY_REQUESTED, this.requested);
+    }
+    if (isSetRequestedLevel) {
+      addIfNull(nulls, JSON_PROPERTY_REQUESTED_LEVEL, this.requestedLevel);
+    }
+    if (isSetRequestedSettings) {
+      addIfNull(nulls, JSON_PROPERTY_REQUESTED_SETTINGS, this.requestedSettings);
+    }
+    if (isSetTransferInstruments) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_INSTRUMENTS, this.transferInstruments);
+    }
+    if (isSetVerificationStatus) {
+      addIfNull(nulls, JSON_PROPERTY_VERIFICATION_STATUS, this.verificationStatus);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AccountHolderCapability given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AccountHolderInfo.java b/src/main/java/com/adyen/model/balanceplatform/AccountHolderInfo.java
index 873291221..cccb6cb55 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AccountHolderInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AccountHolderInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -36,32 +38,65 @@ public class AccountHolderInfo {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private Map<String, AccountHolderCapability> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_CONTACT_DETAILS = "contactDetails";
   @Deprecated // deprecated
   private ContactDetails contactDetails;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContactDetails = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_LEGAL_ENTITY_ID = "legalEntityId";
   private String legalEntityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLegalEntityId = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE =
       "migratedAccountHolderCode";
   private String migratedAccountHolderCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountHolderCode = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AccountHolderInfo() {}
 
   @JsonCreator
@@ -85,6 +120,7 @@ public AccountHolderInfo(
    */
   public AccountHolderInfo balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -120,6 +156,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -135,6 +172,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public AccountHolderInfo capabilities(Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
     return this;
   }
 
@@ -177,6 +215,7 @@ public Map<String, AccountHolderCapability> getCapabilities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
   }
 
   /**
@@ -189,6 +228,7 @@ public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
   @Deprecated // deprecated
   public AccountHolderInfo contactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
     return this;
   }
 
@@ -216,6 +256,7 @@ public ContactDetails getContactDetails() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
   }
 
   /**
@@ -226,6 +267,7 @@ public void setContactDetails(ContactDetails contactDetails) {
    */
   public AccountHolderInfo description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -249,6 +291,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -265,6 +308,7 @@ public void setDescription(String description) {
    */
   public AccountHolderInfo legalEntityId(String legalEntityId) {
     this.legalEntityId = legalEntityId;
+    isSetLegalEntityId = true; // mark as set
     return this;
   }
 
@@ -300,6 +344,7 @@ public String getLegalEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLegalEntityId(String legalEntityId) {
     this.legalEntityId = legalEntityId;
+    isSetLegalEntityId = true; // mark as set
   }
 
   /**
@@ -315,6 +360,7 @@ public void setLegalEntityId(String legalEntityId) {
    */
   public AccountHolderInfo metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -356,6 +402,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -378,6 +425,7 @@ public String getMigratedAccountHolderCode() {
    */
   public AccountHolderInfo reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -401,6 +449,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -416,6 +465,7 @@ public void setReference(String reference) {
    */
   public AccountHolderInfo timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -449,6 +499,27 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AccountHolderInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AccountHolderInfo object is equal to o. */
@@ -516,6 +587,54 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetContactDetails) {
+      addIfNull(nulls, JSON_PROPERTY_CONTACT_DETAILS, this.contactDetails);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetLegalEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_LEGAL_ENTITY_ID, this.legalEntityId);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountHolderCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE, this.migratedAccountHolderCode);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AccountHolderInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AccountHolderUpdateRequest.java b/src/main/java/com/adyen/model/balanceplatform/AccountHolderUpdateRequest.java
index 48260784d..297da345b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AccountHolderUpdateRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AccountHolderUpdateRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -42,29 +44,53 @@ public class AccountHolderUpdateRequest {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private Map<String, AccountHolderCapability> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_CONTACT_DETAILS = "contactDetails";
   @Deprecated // deprecated
   private ContactDetails contactDetails;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContactDetails = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE =
       "migratedAccountHolderCode";
   private String migratedAccountHolderCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountHolderCode = false;
+
   public static final String JSON_PROPERTY_PRIMARY_BALANCE_ACCOUNT = "primaryBalanceAccount";
   private String primaryBalanceAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPrimaryBalanceAccount = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * The status of the account holder. Possible values: * **active**: The account holder is active
    * and allowed to use its capabilities. This is the initial status for account holders and balance
@@ -118,12 +144,27 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
   public static final String JSON_PROPERTY_VERIFICATION_DEADLINES = "verificationDeadlines";
   private List<VerificationDeadline> verificationDeadlines;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVerificationDeadlines = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AccountHolderUpdateRequest() {}
 
   @JsonCreator
@@ -150,6 +191,7 @@ public AccountHolderUpdateRequest(
    */
   public AccountHolderUpdateRequest balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -185,6 +227,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -201,6 +244,7 @@ public void setBalancePlatform(String balancePlatform) {
   public AccountHolderUpdateRequest capabilities(
       Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
     return this;
   }
 
@@ -243,6 +287,7 @@ public Map<String, AccountHolderCapability> getCapabilities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
   }
 
   /**
@@ -255,6 +300,7 @@ public void setCapabilities(Map<String, AccountHolderCapability> capabilities) {
   @Deprecated // deprecated
   public AccountHolderUpdateRequest contactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
     return this;
   }
 
@@ -282,6 +328,7 @@ public ContactDetails getContactDetails() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContactDetails(ContactDetails contactDetails) {
     this.contactDetails = contactDetails;
+    isSetContactDetails = true; // mark as set
   }
 
   /**
@@ -292,6 +339,7 @@ public void setContactDetails(ContactDetails contactDetails) {
    */
   public AccountHolderUpdateRequest description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -315,6 +363,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -330,6 +379,7 @@ public void setDescription(String description) {
    */
   public AccountHolderUpdateRequest metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -371,6 +421,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -397,6 +448,7 @@ public String getMigratedAccountHolderCode() {
    */
   public AccountHolderUpdateRequest primaryBalanceAccount(String primaryBalanceAccount) {
     this.primaryBalanceAccount = primaryBalanceAccount;
+    isSetPrimaryBalanceAccount = true; // mark as set
     return this;
   }
 
@@ -428,6 +480,7 @@ public String getPrimaryBalanceAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPrimaryBalanceAccount(String primaryBalanceAccount) {
     this.primaryBalanceAccount = primaryBalanceAccount;
+    isSetPrimaryBalanceAccount = true; // mark as set
   }
 
   /**
@@ -438,6 +491,7 @@ public void setPrimaryBalanceAccount(String primaryBalanceAccount) {
    */
   public AccountHolderUpdateRequest reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -461,6 +515,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -482,6 +537,7 @@ public void setReference(String reference) {
    */
   public AccountHolderUpdateRequest status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -527,6 +583,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -542,6 +599,7 @@ public void setStatus(StatusEnum status) {
    */
   public AccountHolderUpdateRequest timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -575,6 +633,7 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
   }
 
   /**
@@ -590,6 +649,26 @@ public List<VerificationDeadline> getVerificationDeadlines() {
     return verificationDeadlines;
   }
 
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AccountHolderUpdateRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+  }
+
   /** Return true if this AccountHolderUpdateRequest object is equal to o. */
   @Override
   public boolean equals(Object o) {
@@ -667,6 +746,60 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetContactDetails) {
+      addIfNull(nulls, JSON_PROPERTY_CONTACT_DETAILS, this.contactDetails);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountHolderCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_HOLDER_CODE, this.migratedAccountHolderCode);
+    }
+    if (isSetPrimaryBalanceAccount) {
+      addIfNull(nulls, JSON_PROPERTY_PRIMARY_BALANCE_ACCOUNT, this.primaryBalanceAccount);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+    if (isSetVerificationDeadlines) {
+      addIfNull(nulls, JSON_PROPERTY_VERIFICATION_DEADLINES, this.verificationDeadlines);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AccountHolderUpdateRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AccountSupportingEntityCapability.java b/src/main/java/com/adyen/model/balanceplatform/AccountSupportingEntityCapability.java
index 9344d2af8..755e314d1 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AccountSupportingEntityCapability.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AccountSupportingEntityCapability.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,6 +37,9 @@ public class AccountSupportingEntityCapability {
   public static final String JSON_PROPERTY_ALLOWED = "allowed";
   private Boolean allowed;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAllowed = false;
+
   /**
    * The capability level that is allowed for the account holder. Possible values:
    * **notApplicable**, **low**, **medium**, **high**.
@@ -86,15 +91,27 @@ public static AllowedLevelEnum fromValue(String value) {
   public static final String JSON_PROPERTY_ALLOWED_LEVEL = "allowedLevel";
   private AllowedLevelEnum allowedLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAllowedLevel = false;
+
   public static final String JSON_PROPERTY_ENABLED = "enabled";
   private Boolean enabled;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEnabled = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_REQUESTED = "requested";
   private Boolean requested;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequested = false;
+
   /**
    * The requested level of the capability. Some capabilities, such as those used in [card
    * issuing](https://docs.adyen.com/issuing/add-capabilities#capability-levels), have different
@@ -148,6 +165,9 @@ public static RequestedLevelEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REQUESTED_LEVEL = "requestedLevel";
   private RequestedLevelEnum requestedLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestedLevel = false;
+
   /**
    * The status of the verification checks for the supporting entity capability. Possible values: *
    * **pending**: Adyen is running the verification. * **invalid**: The verification failed. Check
@@ -202,6 +222,15 @@ public static VerificationStatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VERIFICATION_STATUS = "verificationStatus";
   private VerificationStatusEnum verificationStatus;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVerificationStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AccountSupportingEntityCapability() {}
 
   @JsonCreator
@@ -255,6 +284,7 @@ public AllowedLevelEnum getAllowedLevel() {
    */
   public AccountSupportingEntityCapability enabled(Boolean enabled) {
     this.enabled = enabled;
+    isSetEnabled = true; // mark as set
     return this;
   }
 
@@ -282,6 +312,7 @@ public Boolean getEnabled() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEnabled(Boolean enabled) {
     this.enabled = enabled;
+    isSetEnabled = true; // mark as set
   }
 
   /**
@@ -306,6 +337,7 @@ public String getId() {
    */
   public AccountSupportingEntityCapability requested(Boolean requested) {
     this.requested = requested;
+    isSetRequested = true; // mark as set
     return this;
   }
 
@@ -333,6 +365,7 @@ public Boolean getRequested() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequested(Boolean requested) {
     this.requested = requested;
+    isSetRequested = true; // mark as set
   }
 
   /**
@@ -351,6 +384,7 @@ public void setRequested(Boolean requested) {
    */
   public AccountSupportingEntityCapability requestedLevel(RequestedLevelEnum requestedLevel) {
     this.requestedLevel = requestedLevel;
+    isSetRequestedLevel = true; // mark as set
     return this;
   }
 
@@ -388,6 +422,7 @@ public RequestedLevelEnum getRequestedLevel() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestedLevel(RequestedLevelEnum requestedLevel) {
     this.requestedLevel = requestedLevel;
+    isSetRequestedLevel = true; // mark as set
   }
 
   /**
@@ -409,6 +444,26 @@ public VerificationStatusEnum getVerificationStatus() {
     return verificationStatus;
   }
 
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AccountSupportingEntityCapability includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+  }
+
   /** Return true if this AccountSupportingEntityCapability object is equal to o. */
   @Override
   public boolean equals(Object o) {
@@ -461,6 +516,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAllowed) {
+      addIfNull(nulls, JSON_PROPERTY_ALLOWED, this.allowed);
+    }
+    if (isSetAllowedLevel) {
+      addIfNull(nulls, JSON_PROPERTY_ALLOWED_LEVEL, this.allowedLevel);
+    }
+    if (isSetEnabled) {
+      addIfNull(nulls, JSON_PROPERTY_ENABLED, this.enabled);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetRequested) {
+      addIfNull(nulls, JSON_PROPERTY_REQUESTED, this.requested);
+    }
+    if (isSetRequestedLevel) {
+      addIfNull(nulls, JSON_PROPERTY_REQUESTED_LEVEL, this.requestedLevel);
+    }
+    if (isSetVerificationStatus) {
+      addIfNull(nulls, JSON_PROPERTY_VERIFICATION_STATUS, this.verificationStatus);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AccountSupportingEntityCapability given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ActiveNetworkTokensRestriction.java b/src/main/java/com/adyen/model/balanceplatform/ActiveNetworkTokensRestriction.java
index 6a4f3a8f1..bc500bcb6 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ActiveNetworkTokensRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ActiveNetworkTokensRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class ActiveNetworkTokensRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Integer value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ActiveNetworkTokensRestriction() {}
 
   /**
@@ -40,6 +54,7 @@ public ActiveNetworkTokensRestriction() {}
    */
   public ActiveNetworkTokensRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public ActiveNetworkTokensRestriction value(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -97,6 +114,27 @@ public Integer getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ActiveNetworkTokensRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ActiveNetworkTokensRestriction object is equal to o. */
@@ -139,6 +177,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ActiveNetworkTokensRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentification.java b/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentification.java
index c28210f8c..8d0684174 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class AdditionalBankIdentification {
   public static final String JSON_PROPERTY_CODE = "code";
   private String code;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCode = false;
+
   /**
    * The type of additional bank identification, depending on the country. Possible values: *
    * **auBsbCode**: The 6-digit [Australian Bank State Branch (BSB)
@@ -89,6 +94,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AdditionalBankIdentification() {}
 
   /**
@@ -99,6 +113,7 @@ public AdditionalBankIdentification() {}
    */
   public AdditionalBankIdentification code(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
     return this;
   }
 
@@ -122,6 +137,7 @@ public String getCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCode(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
   }
 
   /**
@@ -150,6 +166,7 @@ public void setCode(String code) {
    */
   public AdditionalBankIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -209,6 +226,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AdditionalBankIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AdditionalBankIdentification object is equal to o. */
@@ -250,6 +288,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCode) {
+      addIfNull(nulls, JSON_PROPERTY_CODE, this.code);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AdditionalBankIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentificationRequirement.java b/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentificationRequirement.java
index 179aea932..08a91ccde 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentificationRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AdditionalBankIdentificationRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -89,9 +91,15 @@ public static AdditionalBankIdentificationTypeEnum fromValue(String value) {
       "additionalBankIdentificationType";
   private AdditionalBankIdentificationTypeEnum additionalBankIdentificationType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAdditionalBankIdentificationType = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **additionalBankIdentificationRequirement** */
   public enum TypeEnum {
     ADDITIONALBANKIDENTIFICATIONREQUIREMENT(
@@ -135,6 +143,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AdditionalBankIdentificationRequirement() {}
 
   /**
@@ -165,6 +182,7 @@ public AdditionalBankIdentificationRequirement() {}
   public AdditionalBankIdentificationRequirement additionalBankIdentificationType(
       AdditionalBankIdentificationTypeEnum additionalBankIdentificationType) {
     this.additionalBankIdentificationType = additionalBankIdentificationType;
+    isSetAdditionalBankIdentificationType = true; // mark as set
     return this;
   }
 
@@ -225,6 +243,7 @@ public AdditionalBankIdentificationTypeEnum getAdditionalBankIdentificationType(
   public void setAdditionalBankIdentificationType(
       AdditionalBankIdentificationTypeEnum additionalBankIdentificationType) {
     this.additionalBankIdentificationType = additionalBankIdentificationType;
+    isSetAdditionalBankIdentificationType = true; // mark as set
   }
 
   /**
@@ -236,6 +255,7 @@ public void setAdditionalBankIdentificationType(
    */
   public AdditionalBankIdentificationRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -259,6 +279,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -270,6 +291,7 @@ public void setDescription(String description) {
    */
   public AdditionalBankIdentificationRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -293,6 +315,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AdditionalBankIdentificationRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AdditionalBankIdentificationRequirement object is equal to o. */
@@ -341,6 +384,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAdditionalBankIdentificationType) {
+      addIfNull(
+          nulls,
+          JSON_PROPERTY_ADDITIONAL_BANK_IDENTIFICATION_TYPE,
+          this.additionalBankIdentificationType);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AdditionalBankIdentificationRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Address.java b/src/main/java/com/adyen/model/balanceplatform/Address.java
index 314642ec9..6142a5604 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Address.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Address.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,21 +32,45 @@ public class Address {
   public static final String JSON_PROPERTY_CITY = "city";
   private String city;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCity = false;
+
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_HOUSE_NUMBER_OR_NAME = "houseNumberOrName";
   private String houseNumberOrName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHouseNumberOrName = false;
+
   public static final String JSON_PROPERTY_POSTAL_CODE = "postalCode";
   private String postalCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPostalCode = false;
+
   public static final String JSON_PROPERTY_STATE_OR_PROVINCE = "stateOrProvince";
   private String stateOrProvince;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStateOrProvince = false;
+
   public static final String JSON_PROPERTY_STREET = "street";
   private String street;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStreet = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Address() {}
 
   /**
@@ -55,6 +81,7 @@ public Address() {}
    */
   public Address city(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
     return this;
   }
 
@@ -78,6 +105,7 @@ public String getCity() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCity(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
   }
 
   /**
@@ -92,6 +120,7 @@ public void setCity(String city) {
    */
   public Address country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -123,6 +152,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -133,6 +163,7 @@ public void setCountry(String country) {
    */
   public Address houseNumberOrName(String houseNumberOrName) {
     this.houseNumberOrName = houseNumberOrName;
+    isSetHouseNumberOrName = true; // mark as set
     return this;
   }
 
@@ -156,6 +187,7 @@ public String getHouseNumberOrName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHouseNumberOrName(String houseNumberOrName) {
     this.houseNumberOrName = houseNumberOrName;
+    isSetHouseNumberOrName = true; // mark as set
   }
 
   /**
@@ -168,6 +200,7 @@ public void setHouseNumberOrName(String houseNumberOrName) {
    */
   public Address postalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
     return this;
   }
 
@@ -195,6 +228,7 @@ public String getPostalCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPostalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
   }
 
   /**
@@ -207,6 +241,7 @@ public void setPostalCode(String postalCode) {
    */
   public Address stateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
     return this;
   }
 
@@ -234,6 +269,7 @@ public String getStateOrProvince() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
   }
 
   /**
@@ -247,6 +283,7 @@ public void setStateOrProvince(String stateOrProvince) {
    */
   public Address street(String street) {
     this.street = street;
+    isSetStreet = true; // mark as set
     return this;
   }
 
@@ -276,6 +313,27 @@ public String getStreet() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStreet(String street) {
     this.street = street;
+    isSetStreet = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Address includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Address object is equal to o. */
@@ -325,6 +383,45 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCity) {
+      addIfNull(nulls, JSON_PROPERTY_CITY, this.city);
+    }
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetHouseNumberOrName) {
+      addIfNull(nulls, JSON_PROPERTY_HOUSE_NUMBER_OR_NAME, this.houseNumberOrName);
+    }
+    if (isSetPostalCode) {
+      addIfNull(nulls, JSON_PROPERTY_POSTAL_CODE, this.postalCode);
+    }
+    if (isSetStateOrProvince) {
+      addIfNull(nulls, JSON_PROPERTY_STATE_OR_PROVINCE, this.stateOrProvince);
+    }
+    if (isSetStreet) {
+      addIfNull(nulls, JSON_PROPERTY_STREET, this.street);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Address given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AddressRequirement.java b/src/main/java/com/adyen/model/balanceplatform/AddressRequirement.java
index e5f9be663..aa7609591 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AddressRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AddressRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,6 +35,9 @@ public class AddressRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** Gets or Sets requiredAddressFields */
   public enum RequiredAddressFieldsEnum {
     CITY(String.valueOf("city")),
@@ -83,6 +88,9 @@ public static RequiredAddressFieldsEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REQUIRED_ADDRESS_FIELDS = "requiredAddressFields";
   private List<RequiredAddressFieldsEnum> requiredAddressFields;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequiredAddressFields = false;
+
   /** **addressRequirement** */
   public enum TypeEnum {
     ADDRESSREQUIREMENT(String.valueOf("addressRequirement"));
@@ -125,6 +133,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AddressRequirement() {}
 
   /**
@@ -135,6 +152,7 @@ public AddressRequirement() {}
    */
   public AddressRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -158,6 +176,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -169,6 +188,7 @@ public void setDescription(String description) {
   public AddressRequirement requiredAddressFields(
       List<RequiredAddressFieldsEnum> requiredAddressFields) {
     this.requiredAddressFields = requiredAddressFields;
+    isSetRequiredAddressFields = true; // mark as set
     return this;
   }
 
@@ -201,6 +221,7 @@ public List<RequiredAddressFieldsEnum> getRequiredAddressFields() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequiredAddressFields(List<RequiredAddressFieldsEnum> requiredAddressFields) {
     this.requiredAddressFields = requiredAddressFields;
+    isSetRequiredAddressFields = true; // mark as set
   }
 
   /**
@@ -211,6 +232,7 @@ public void setRequiredAddressFields(List<RequiredAddressFieldsEnum> requiredAdd
    */
   public AddressRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -234,6 +256,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AddressRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AddressRequirement object is equal to o. */
@@ -279,6 +322,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetRequiredAddressFields) {
+      addIfNull(nulls, JSON_PROPERTY_REQUIRED_ADDRESS_FIELDS, this.requiredAddressFields);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AddressRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Amount.java b/src/main/java/com/adyen/model/balanceplatform/Amount.java
index 4cad929f3..7162cab4b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Amount.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Amount.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,30 +25,47 @@ public class Amount {
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Long value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Amount() {}
 
   /**
    * The three-character [ISO currency
-   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   * amount.
    *
    * @param currency The three-character [ISO currency
-   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   *     amount.
    * @return the current {@code Amount} instance, allowing for method chaining
    */
   public Amount currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
   /**
    * The three-character [ISO currency
-   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   * amount.
    *
    * @return currency The three-character [ISO currency
-   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   *     amount.
    */
   @JsonProperty(JSON_PROPERTY_CURRENCY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -56,35 +75,39 @@ public String getCurrency() {
 
   /**
    * The three-character [ISO currency
-   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   * code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   * amount.
    *
    * @param currency The three-character [ISO currency
-   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes).
+   *     code](https://docs.adyen.com/development-resources/currency-codes#currency-codes) of the
+   *     amount.
    */
   @JsonProperty(JSON_PROPERTY_CURRENCY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
-   * The amount of the transaction, in [minor
+   * The numeric value of the amount, in [minor
    * units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    *
-   * @param value The amount of the transaction, in [minor
+   * @param value The numeric value of the amount, in [minor
    *     units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    * @return the current {@code Amount} instance, allowing for method chaining
    */
   public Amount value(Long value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
   /**
-   * The amount of the transaction, in [minor
+   * The numeric value of the amount, in [minor
    * units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    *
-   * @return value The amount of the transaction, in [minor
+   * @return value The numeric value of the amount, in [minor
    *     units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    */
   @JsonProperty(JSON_PROPERTY_VALUE)
@@ -94,16 +117,37 @@ public Long getValue() {
   }
 
   /**
-   * The amount of the transaction, in [minor
+   * The numeric value of the amount, in [minor
    * units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    *
-   * @param value The amount of the transaction, in [minor
+   * @param value The numeric value of the amount, in [minor
    *     units](https://docs.adyen.com/development-resources/currency-codes#minor-units).
    */
   @JsonProperty(JSON_PROPERTY_VALUE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Long value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Amount includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Amount object is equal to o. */
@@ -145,6 +189,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Amount given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AmountMinMaxRequirement.java b/src/main/java/com/adyen/model/balanceplatform/AmountMinMaxRequirement.java
index d46f7786d..91550b3a1 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AmountMinMaxRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AmountMinMaxRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,12 +34,21 @@ public class AmountMinMaxRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_MAX = "max";
   private Long max;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMax = false;
+
   public static final String JSON_PROPERTY_MIN = "min";
   private Long min;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMin = false;
+
   /** **amountMinMaxRequirement** */
   public enum TypeEnum {
     AMOUNTMINMAXREQUIREMENT(String.valueOf("amountMinMaxRequirement"));
@@ -80,6 +91,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AmountMinMaxRequirement() {}
 
   /**
@@ -90,6 +110,7 @@ public AmountMinMaxRequirement() {}
    */
   public AmountMinMaxRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -113,6 +134,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -123,6 +145,7 @@ public void setDescription(String description) {
    */
   public AmountMinMaxRequirement max(Long max) {
     this.max = max;
+    isSetMax = true; // mark as set
     return this;
   }
 
@@ -146,6 +169,7 @@ public Long getMax() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMax(Long max) {
     this.max = max;
+    isSetMax = true; // mark as set
   }
 
   /**
@@ -156,6 +180,7 @@ public void setMax(Long max) {
    */
   public AmountMinMaxRequirement min(Long min) {
     this.min = min;
+    isSetMin = true; // mark as set
     return this;
   }
 
@@ -179,6 +204,7 @@ public Long getMin() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMin(Long min) {
     this.min = min;
+    isSetMin = true; // mark as set
   }
 
   /**
@@ -189,6 +215,7 @@ public void setMin(Long min) {
    */
   public AmountMinMaxRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -212,6 +239,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AmountMinMaxRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AmountMinMaxRequirement object is equal to o. */
@@ -257,6 +305,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetMax) {
+      addIfNull(nulls, JSON_PROPERTY_MAX, this.max);
+    }
+    if (isSetMin) {
+      addIfNull(nulls, JSON_PROPERTY_MIN, this.min);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AmountMinMaxRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AmountNonZeroDecimalsRequirement.java b/src/main/java/com/adyen/model/balanceplatform/AmountNonZeroDecimalsRequirement.java
index 935aad63b..ddae8dde4 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AmountNonZeroDecimalsRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AmountNonZeroDecimalsRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class AmountNonZeroDecimalsRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **amountNonZeroDecimalsRequirement** */
   public enum TypeEnum {
     AMOUNTNONZERODECIMALSREQUIREMENT(String.valueOf("amountNonZeroDecimalsRequirement"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AmountNonZeroDecimalsRequirement() {}
 
   /**
@@ -86,6 +100,7 @@ public AmountNonZeroDecimalsRequirement() {}
    */
   public AmountNonZeroDecimalsRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -115,6 +130,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -126,6 +142,7 @@ public void setDescription(String description) {
    */
   public AmountNonZeroDecimalsRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -149,6 +166,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AmountNonZeroDecimalsRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AmountNonZeroDecimalsRequirement object is equal to o. */
@@ -191,6 +229,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AmountNonZeroDecimalsRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationRequest.java b/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationRequest.java
index c1833fecc..b64dc1f8d 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,15 +32,33 @@ public class ApproveAssociationRequest {
   public static final String JSON_PROPERTY_ENTITY_ID = "entityId";
   private String entityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityId = false;
+
   public static final String JSON_PROPERTY_ENTITY_TYPE = "entityType";
   private ScaEntityType entityType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityType = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_IDS = "scaDeviceIds";
   private List<String> scaDeviceIds;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceIds = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private AssociationStatus status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ApproveAssociationRequest() {}
 
   /**
@@ -49,6 +69,7 @@ public ApproveAssociationRequest() {}
    */
   public ApproveAssociationRequest entityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
     return this;
   }
 
@@ -72,6 +93,7 @@ public String getEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
   }
 
   /**
@@ -82,6 +104,7 @@ public void setEntityId(String entityId) {
    */
   public ApproveAssociationRequest entityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
     return this;
   }
 
@@ -105,6 +128,7 @@ public ScaEntityType getEntityType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
   }
 
   /**
@@ -115,6 +139,7 @@ public void setEntityType(ScaEntityType entityType) {
    */
   public ApproveAssociationRequest scaDeviceIds(List<String> scaDeviceIds) {
     this.scaDeviceIds = scaDeviceIds;
+    isSetScaDeviceIds = true; // mark as set
     return this;
   }
 
@@ -146,6 +171,7 @@ public List<String> getScaDeviceIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceIds(List<String> scaDeviceIds) {
     this.scaDeviceIds = scaDeviceIds;
+    isSetScaDeviceIds = true; // mark as set
   }
 
   /**
@@ -156,6 +182,7 @@ public void setScaDeviceIds(List<String> scaDeviceIds) {
    */
   public ApproveAssociationRequest status(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -179,6 +206,27 @@ public AssociationStatus getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ApproveAssociationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ApproveAssociationRequest object is equal to o. */
@@ -224,6 +272,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_ID, this.entityId);
+    }
+    if (isSetEntityType) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_TYPE, this.entityType);
+    }
+    if (isSetScaDeviceIds) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_IDS, this.scaDeviceIds);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ApproveAssociationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationResponse.java b/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationResponse.java
index b4b635d03..ca7a32124 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ApproveAssociationResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class ApproveAssociationResponse {
   public static final String JSON_PROPERTY_SCA_ASSOCIATIONS = "scaAssociations";
   private List<Association> scaAssociations;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaAssociations = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ApproveAssociationResponse() {}
 
   /**
@@ -35,6 +46,7 @@ public ApproveAssociationResponse() {}
    */
   public ApproveAssociationResponse scaAssociations(List<Association> scaAssociations) {
     this.scaAssociations = scaAssociations;
+    isSetScaAssociations = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<Association> getScaAssociations() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaAssociations(List<Association> scaAssociations) {
     this.scaAssociations = scaAssociations;
+    isSetScaAssociations = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ApproveAssociationResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ApproveAssociationResponse object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetScaAssociations) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_ASSOCIATIONS, this.scaAssociations);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ApproveAssociationResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ApproveTransferLimitRequest.java b/src/main/java/com/adyen/model/balanceplatform/ApproveTransferLimitRequest.java
index 929efbb85..d52c737dc 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ApproveTransferLimitRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ApproveTransferLimitRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class ApproveTransferLimitRequest {
   public static final String JSON_PROPERTY_TRANSFER_LIMIT_IDS = "transferLimitIds";
   private List<String> transferLimitIds;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferLimitIds = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ApproveTransferLimitRequest() {}
 
   /**
@@ -37,6 +48,7 @@ public ApproveTransferLimitRequest() {}
    */
   public ApproveTransferLimitRequest transferLimitIds(List<String> transferLimitIds) {
     this.transferLimitIds = transferLimitIds;
+    isSetTransferLimitIds = true; // mark as set
     return this;
   }
 
@@ -72,6 +84,27 @@ public List<String> getTransferLimitIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferLimitIds(List<String> transferLimitIds) {
     this.transferLimitIds = transferLimitIds;
+    isSetTransferLimitIds = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ApproveTransferLimitRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ApproveTransferLimitRequest object is equal to o. */
@@ -111,6 +144,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetTransferLimitIds) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_LIMIT_IDS, this.transferLimitIds);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ApproveTransferLimitRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Association.java b/src/main/java/com/adyen/model/balanceplatform/Association.java
index 8790afdde..b3f8ce1e4 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Association.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Association.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,15 +30,33 @@ public class Association {
   public static final String JSON_PROPERTY_ENTITY_ID = "entityId";
   private String entityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityId = false;
+
   public static final String JSON_PROPERTY_ENTITY_TYPE = "entityType";
   private ScaEntityType entityType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityType = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_ID = "scaDeviceId";
   private String scaDeviceId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceId = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private AssociationStatus status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Association() {}
 
   /**
@@ -47,6 +67,7 @@ public Association() {}
    */
   public Association entityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
     return this;
   }
 
@@ -70,6 +91,7 @@ public String getEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
   }
 
   /**
@@ -80,6 +102,7 @@ public void setEntityId(String entityId) {
    */
   public Association entityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
     return this;
   }
 
@@ -103,6 +126,7 @@ public ScaEntityType getEntityType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
   }
 
   /**
@@ -113,6 +137,7 @@ public void setEntityType(ScaEntityType entityType) {
    */
   public Association scaDeviceId(String scaDeviceId) {
     this.scaDeviceId = scaDeviceId;
+    isSetScaDeviceId = true; // mark as set
     return this;
   }
 
@@ -136,6 +161,7 @@ public String getScaDeviceId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceId(String scaDeviceId) {
     this.scaDeviceId = scaDeviceId;
+    isSetScaDeviceId = true; // mark as set
   }
 
   /**
@@ -146,6 +172,7 @@ public void setScaDeviceId(String scaDeviceId) {
    */
   public Association status(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -169,6 +196,27 @@ public AssociationStatus getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Association includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Association object is equal to o. */
@@ -214,6 +262,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_ID, this.entityId);
+    }
+    if (isSetEntityType) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_TYPE, this.entityType);
+    }
+    if (isSetScaDeviceId) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_ID, this.scaDeviceId);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Association given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationDelegatedAuthenticationData.java b/src/main/java/com/adyen/model/balanceplatform/AssociationDelegatedAuthenticationData.java
index 9110d316e..cf88382f4 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationDelegatedAuthenticationData.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationDelegatedAuthenticationData.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class AssociationDelegatedAuthenticationData {
   public static final String JSON_PROPERTY_SDK_OUTPUT = "sdkOutput";
   private String sdkOutput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkOutput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationDelegatedAuthenticationData() {}
 
   /**
@@ -36,6 +47,7 @@ public AssociationDelegatedAuthenticationData() {}
    */
   public AssociationDelegatedAuthenticationData sdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
     return this;
   }
 
@@ -63,6 +75,27 @@ public String getSdkOutput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationDelegatedAuthenticationData includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationDelegatedAuthenticationData object is equal to o. */
@@ -103,6 +136,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkOutput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_OUTPUT, this.sdkOutput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationDelegatedAuthenticationData given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseRequest.java b/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseRequest.java
index a12d143a7..ffb7cdf44 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,10 +35,16 @@ public class AssociationFinaliseRequest {
   public static final String JSON_PROPERTY_IDS = "ids";
   private List<String> ids;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIds = false;
+
   public static final String JSON_PROPERTY_STRONG_CUSTOMER_AUTHENTICATION =
       "strongCustomerAuthentication";
   private AssociationDelegatedAuthenticationData strongCustomerAuthentication;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStrongCustomerAuthentication = false;
+
   /**
    * The type of resource that you are associating with the SCA device. Possible value:
    * **PaymentInstrument**
@@ -82,6 +90,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationFinaliseRequest() {}
 
   /**
@@ -94,6 +111,7 @@ public AssociationFinaliseRequest() {}
    */
   public AssociationFinaliseRequest ids(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
     return this;
   }
 
@@ -129,6 +147,7 @@ public List<String> getIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIds(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
   }
 
   /**
@@ -140,6 +159,7 @@ public void setIds(List<String> ids) {
   public AssociationFinaliseRequest strongCustomerAuthentication(
       AssociationDelegatedAuthenticationData strongCustomerAuthentication) {
     this.strongCustomerAuthentication = strongCustomerAuthentication;
+    isSetStrongCustomerAuthentication = true; // mark as set
     return this;
   }
 
@@ -164,6 +184,7 @@ public AssociationDelegatedAuthenticationData getStrongCustomerAuthentication()
   public void setStrongCustomerAuthentication(
       AssociationDelegatedAuthenticationData strongCustomerAuthentication) {
     this.strongCustomerAuthentication = strongCustomerAuthentication;
+    isSetStrongCustomerAuthentication = true; // mark as set
   }
 
   /**
@@ -176,6 +197,7 @@ public void setStrongCustomerAuthentication(
    */
   public AssociationFinaliseRequest type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -203,6 +225,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationFinaliseRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationFinaliseRequest object is equal to o. */
@@ -250,6 +293,37 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetIds) {
+      addIfNull(nulls, JSON_PROPERTY_IDS, this.ids);
+    }
+    if (isSetStrongCustomerAuthentication) {
+      addIfNull(
+          nulls, JSON_PROPERTY_STRONG_CUSTOMER_AUTHENTICATION, this.strongCustomerAuthentication);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationFinaliseRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseResponse.java b/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseResponse.java
index 5f88ae408..bdc2e7e11 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationFinaliseResponse.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,9 +35,15 @@ public class AssociationFinaliseResponse {
   public static final String JSON_PROPERTY_DEVICE_ID = "deviceId";
   private String deviceId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDeviceId = false;
+
   public static final String JSON_PROPERTY_IDS = "ids";
   private List<String> ids;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIds = false;
+
   /** The type of resource that you associated with the SCA device. */
   public enum TypeEnum {
     PAYMENT_INSTRUMENT(String.valueOf("PAYMENT_INSTRUMENT"));
@@ -78,6 +86,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationFinaliseResponse() {}
 
   /**
@@ -88,6 +105,7 @@ public AssociationFinaliseResponse() {}
    */
   public AssociationFinaliseResponse deviceId(String deviceId) {
     this.deviceId = deviceId;
+    isSetDeviceId = true; // mark as set
     return this;
   }
 
@@ -111,6 +129,7 @@ public String getDeviceId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDeviceId(String deviceId) {
     this.deviceId = deviceId;
+    isSetDeviceId = true; // mark as set
   }
 
   /**
@@ -122,6 +141,7 @@ public void setDeviceId(String deviceId) {
    */
   public AssociationFinaliseResponse ids(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
     return this;
   }
 
@@ -155,6 +175,7 @@ public List<String> getIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIds(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
   }
 
   /**
@@ -165,6 +186,7 @@ public void setIds(List<String> ids) {
    */
   public AssociationFinaliseResponse type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -188,6 +210,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationFinaliseResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationFinaliseResponse object is equal to o. */
@@ -231,6 +274,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDeviceId) {
+      addIfNull(nulls, JSON_PROPERTY_DEVICE_ID, this.deviceId);
+    }
+    if (isSetIds) {
+      addIfNull(nulls, JSON_PROPERTY_IDS, this.ids);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationFinaliseResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateRequest.java b/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateRequest.java
index 848ef857b..3e515eb38 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class AssociationInitiateRequest {
   public static final String JSON_PROPERTY_IDS = "ids";
   private List<String> ids;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIds = false;
+
   /**
    * The type of resource that you are associating with the SCA device. Possible value:
    * **PaymentInstrument**
@@ -77,6 +82,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationInitiateRequest() {}
 
   /**
@@ -89,6 +103,7 @@ public AssociationInitiateRequest() {}
    */
   public AssociationInitiateRequest ids(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
     return this;
   }
 
@@ -124,6 +139,7 @@ public List<String> getIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIds(List<String> ids) {
     this.ids = ids;
+    isSetIds = true; // mark as set
   }
 
   /**
@@ -136,6 +152,7 @@ public void setIds(List<String> ids) {
    */
   public AssociationInitiateRequest type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -163,6 +180,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationInitiateRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationInitiateRequest object is equal to o. */
@@ -204,6 +242,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetIds) {
+      addIfNull(nulls, JSON_PROPERTY_IDS, this.ids);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationInitiateRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateResponse.java b/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateResponse.java
index ed4a2253c..3a93c2f15 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationInitiateResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class AssociationInitiateResponse {
   public static final String JSON_PROPERTY_SDK_INPUT = "sdkInput";
   private String sdkInput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkInput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationInitiateResponse() {}
 
   /**
@@ -34,6 +45,7 @@ public AssociationInitiateResponse() {}
    */
   public AssociationInitiateResponse sdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
     return this;
   }
 
@@ -59,6 +71,27 @@ public String getSdkInput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationInitiateResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationInitiateResponse object is equal to o. */
@@ -98,6 +131,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkInput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_INPUT, this.sdkInput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationInitiateResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AssociationListing.java b/src/main/java/com/adyen/model/balanceplatform/AssociationListing.java
index d9607c7ec..9ca77e1e8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AssociationListing.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AssociationListing.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,24 +34,51 @@ public class AssociationListing {
   public static final String JSON_PROPERTY_CREATED_AT = "createdAt";
   private OffsetDateTime createdAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCreatedAt = false;
+
   public static final String JSON_PROPERTY_ENTITY_ID = "entityId";
   private String entityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityId = false;
+
   public static final String JSON_PROPERTY_ENTITY_TYPE = "entityType";
   private ScaEntityType entityType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityType = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_ID = "scaDeviceId";
   private String scaDeviceId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceId = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_NAME = "scaDeviceName";
   private String scaDeviceName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceName = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_TYPE = "scaDeviceType";
   private ScaDeviceType scaDeviceType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceType = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private AssociationStatus status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AssociationListing() {}
 
   /**
@@ -60,6 +89,7 @@ public AssociationListing() {}
    */
   public AssociationListing createdAt(OffsetDateTime createdAt) {
     this.createdAt = createdAt;
+    isSetCreatedAt = true; // mark as set
     return this;
   }
 
@@ -83,6 +113,7 @@ public OffsetDateTime getCreatedAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCreatedAt(OffsetDateTime createdAt) {
     this.createdAt = createdAt;
+    isSetCreatedAt = true; // mark as set
   }
 
   /**
@@ -93,6 +124,7 @@ public void setCreatedAt(OffsetDateTime createdAt) {
    */
   public AssociationListing entityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
     return this;
   }
 
@@ -116,6 +148,7 @@ public String getEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
   }
 
   /**
@@ -126,6 +159,7 @@ public void setEntityId(String entityId) {
    */
   public AssociationListing entityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
     return this;
   }
 
@@ -149,6 +183,7 @@ public ScaEntityType getEntityType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
   }
 
   /**
@@ -159,6 +194,7 @@ public void setEntityType(ScaEntityType entityType) {
    */
   public AssociationListing scaDeviceId(String scaDeviceId) {
     this.scaDeviceId = scaDeviceId;
+    isSetScaDeviceId = true; // mark as set
     return this;
   }
 
@@ -182,6 +218,7 @@ public String getScaDeviceId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceId(String scaDeviceId) {
     this.scaDeviceId = scaDeviceId;
+    isSetScaDeviceId = true; // mark as set
   }
 
   /**
@@ -192,6 +229,7 @@ public void setScaDeviceId(String scaDeviceId) {
    */
   public AssociationListing scaDeviceName(String scaDeviceName) {
     this.scaDeviceName = scaDeviceName;
+    isSetScaDeviceName = true; // mark as set
     return this;
   }
 
@@ -215,6 +253,7 @@ public String getScaDeviceName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceName(String scaDeviceName) {
     this.scaDeviceName = scaDeviceName;
+    isSetScaDeviceName = true; // mark as set
   }
 
   /**
@@ -225,6 +264,7 @@ public void setScaDeviceName(String scaDeviceName) {
    */
   public AssociationListing scaDeviceType(ScaDeviceType scaDeviceType) {
     this.scaDeviceType = scaDeviceType;
+    isSetScaDeviceType = true; // mark as set
     return this;
   }
 
@@ -248,6 +288,7 @@ public ScaDeviceType getScaDeviceType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceType(ScaDeviceType scaDeviceType) {
     this.scaDeviceType = scaDeviceType;
+    isSetScaDeviceType = true; // mark as set
   }
 
   /**
@@ -258,6 +299,7 @@ public void setScaDeviceType(ScaDeviceType scaDeviceType) {
    */
   public AssociationListing status(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -281,6 +323,27 @@ public AssociationStatus getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(AssociationStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AssociationListing includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AssociationListing object is equal to o. */
@@ -333,6 +396,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCreatedAt) {
+      addIfNull(nulls, JSON_PROPERTY_CREATED_AT, this.createdAt);
+    }
+    if (isSetEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_ID, this.entityId);
+    }
+    if (isSetEntityType) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_TYPE, this.entityType);
+    }
+    if (isSetScaDeviceId) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_ID, this.scaDeviceId);
+    }
+    if (isSetScaDeviceName) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_NAME, this.scaDeviceName);
+    }
+    if (isSetScaDeviceType) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_TYPE, this.scaDeviceType);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AssociationListing given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Authentication.java b/src/main/java/com/adyen/model/balanceplatform/Authentication.java
index b1ca55240..08bbea000 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Authentication.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Authentication.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class Authentication {
   public static final String JSON_PROPERTY_EMAIL = "email";
   private String email;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEmail = false;
+
   public static final String JSON_PROPERTY_PASSWORD = "password";
   private String password;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPassword = false;
+
   public static final String JSON_PROPERTY_PHONE = "phone";
   private Phone phone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Authentication() {}
 
   /**
@@ -43,6 +60,7 @@ public Authentication() {}
    */
   public Authentication email(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
     return this;
   }
 
@@ -66,6 +84,7 @@ public String getEmail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEmail(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
   }
 
   /**
@@ -82,6 +101,7 @@ public void setEmail(String email) {
    */
   public Authentication password(String password) {
     this.password = password;
+    isSetPassword = true; // mark as set
     return this;
   }
 
@@ -117,6 +137,7 @@ public String getPassword() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPassword(String password) {
     this.password = password;
+    isSetPassword = true; // mark as set
   }
 
   /**
@@ -127,6 +148,7 @@ public void setPassword(String password) {
    */
   public Authentication phone(Phone phone) {
     this.phone = phone;
+    isSetPhone = true; // mark as set
     return this;
   }
 
@@ -150,6 +172,27 @@ public Phone getPhone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhone(Phone phone) {
     this.phone = phone;
+    isSetPhone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Authentication includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Authentication object is equal to o. */
@@ -193,6 +236,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEmail) {
+      addIfNull(nulls, JSON_PROPERTY_EMAIL, this.email);
+    }
+    if (isSetPassword) {
+      addIfNull(nulls, JSON_PROPERTY_PASSWORD, this.password);
+    }
+    if (isSetPhone) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE, this.phone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Authentication given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/AuthorisedCardUsers.java b/src/main/java/com/adyen/model/balanceplatform/AuthorisedCardUsers.java
index fae830b57..49e4758c3 100644
--- a/src/main/java/com/adyen/model/balanceplatform/AuthorisedCardUsers.java
+++ b/src/main/java/com/adyen/model/balanceplatform/AuthorisedCardUsers.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class AuthorisedCardUsers {
   public static final String JSON_PROPERTY_LEGAL_ENTITY_IDS = "legalEntityIds";
   private List<String> legalEntityIds;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLegalEntityIds = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public AuthorisedCardUsers() {}
 
   /**
@@ -36,6 +47,7 @@ public AuthorisedCardUsers() {}
    */
   public AuthorisedCardUsers legalEntityIds(List<String> legalEntityIds) {
     this.legalEntityIds = legalEntityIds;
+    isSetLegalEntityIds = true; // mark as set
     return this;
   }
 
@@ -69,6 +81,27 @@ public List<String> getLegalEntityIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLegalEntityIds(List<String> legalEntityIds) {
     this.legalEntityIds = legalEntityIds;
+    isSetLegalEntityIds = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public AuthorisedCardUsers includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this AuthorisedCardUsers object is equal to o. */
@@ -108,6 +141,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetLegalEntityIds) {
+      addIfNull(nulls, JSON_PROPERTY_LEGAL_ENTITY_IDS, this.legalEntityIds);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of AuthorisedCardUsers given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BRLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/BRLocalAccountIdentification.java
index 163d24a87..d925cba96 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BRLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BRLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,15 +35,27 @@ public class BRLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_BANK_CODE = "bankCode";
   private String bankCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankCode = false;
+
   public static final String JSON_PROPERTY_BRANCH_NUMBER = "branchNumber";
   private String branchNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBranchNumber = false;
+
   public static final String JSON_PROPERTY_ISPB = "ispb";
   private String ispb;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIspb = false;
+
   /** **brLocal** */
   public enum TypeEnum {
     BRLOCAL(String.valueOf("brLocal"));
@@ -84,6 +98,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BRLocalAccountIdentification() {}
 
   /**
@@ -94,6 +117,7 @@ public BRLocalAccountIdentification() {}
    */
   public BRLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -117,6 +141,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -127,6 +152,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public BRLocalAccountIdentification bankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
     return this;
   }
 
@@ -150,6 +176,7 @@ public String getBankCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
   }
 
   /**
@@ -160,6 +187,7 @@ public void setBankCode(String bankCode) {
    */
   public BRLocalAccountIdentification branchNumber(String branchNumber) {
     this.branchNumber = branchNumber;
+    isSetBranchNumber = true; // mark as set
     return this;
   }
 
@@ -183,6 +211,7 @@ public String getBranchNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBranchNumber(String branchNumber) {
     this.branchNumber = branchNumber;
+    isSetBranchNumber = true; // mark as set
   }
 
   /**
@@ -193,6 +222,7 @@ public void setBranchNumber(String branchNumber) {
    */
   public BRLocalAccountIdentification ispb(String ispb) {
     this.ispb = ispb;
+    isSetIspb = true; // mark as set
     return this;
   }
 
@@ -216,6 +246,7 @@ public String getIspb() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIspb(String ispb) {
     this.ispb = ispb;
+    isSetIspb = true; // mark as set
   }
 
   /**
@@ -226,6 +257,7 @@ public void setIspb(String ispb) {
    */
   public BRLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -249,6 +281,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BRLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BRLocalAccountIdentification object is equal to o. */
@@ -296,6 +349,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetBankCode) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_CODE, this.bankCode);
+    }
+    if (isSetBranchNumber) {
+      addIfNull(nulls, JSON_PROPERTY_BRANCH_NUMBER, this.branchNumber);
+    }
+    if (isSetIspb) {
+      addIfNull(nulls, JSON_PROPERTY_ISPB, this.ispb);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BRLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Balance.java b/src/main/java/com/adyen/model/balanceplatform/Balance.java
index 8d4a8c88f..b7531d3c0 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Balance.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Balance.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,24 +25,52 @@
   Balance.JSON_PROPERTY_BALANCE,
   Balance.JSON_PROPERTY_CURRENCY,
   Balance.JSON_PROPERTY_PENDING,
+  Balance.JSON_PROPERTY_PENDING_AVAILABLE,
   Balance.JSON_PROPERTY_RESERVED
 })
 public class Balance {
   public static final String JSON_PROPERTY_AVAILABLE = "available";
   private Long available;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAvailable = false;
+
   public static final String JSON_PROPERTY_BALANCE = "balance";
   private Long balance;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalance = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_PENDING = "pending";
   private Long pending;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPending = false;
+
+  public static final String JSON_PROPERTY_PENDING_AVAILABLE = "pendingAvailable";
+  private Long pendingAvailable;
+
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPendingAvailable = false;
+
   public static final String JSON_PROPERTY_RESERVED = "reserved";
   private Long reserved;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReserved = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Balance() {}
 
   /**
@@ -51,6 +81,7 @@ public Balance() {}
    */
   public Balance available(Long available) {
     this.available = available;
+    isSetAvailable = true; // mark as set
     return this;
   }
 
@@ -74,6 +105,7 @@ public Long getAvailable() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAvailable(Long available) {
     this.available = available;
+    isSetAvailable = true; // mark as set
   }
 
   /**
@@ -84,6 +116,7 @@ public void setAvailable(Long available) {
    */
   public Balance balance(Long balance) {
     this.balance = balance;
+    isSetBalance = true; // mark as set
     return this;
   }
 
@@ -107,6 +140,7 @@ public Long getBalance() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalance(Long balance) {
     this.balance = balance;
+    isSetBalance = true; // mark as set
   }
 
   /**
@@ -119,6 +153,7 @@ public void setBalance(Long balance) {
    */
   public Balance currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -146,6 +181,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -156,6 +192,7 @@ public void setCurrency(String currency) {
    */
   public Balance pending(Long pending) {
     this.pending = pending;
+    isSetPending = true; // mark as set
     return this;
   }
 
@@ -179,6 +216,36 @@ public Long getPending() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPending(Long pending) {
     this.pending = pending;
+    isSetPending = true; // mark as set
+  }
+
+  /**
+   * @param pendingAvailable
+   * @return the current {@code Balance} instance, allowing for method chaining
+   */
+  public Balance pendingAvailable(Long pendingAvailable) {
+    this.pendingAvailable = pendingAvailable;
+    isSetPendingAvailable = true; // mark as set
+    return this;
+  }
+
+  /**
+   * @return pendingAvailable
+   */
+  @JsonProperty(JSON_PROPERTY_PENDING_AVAILABLE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public Long getPendingAvailable() {
+    return pendingAvailable;
+  }
+
+  /**
+   * @param pendingAvailable
+   */
+  @JsonProperty(JSON_PROPERTY_PENDING_AVAILABLE)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setPendingAvailable(Long pendingAvailable) {
+    this.pendingAvailable = pendingAvailable;
+    isSetPendingAvailable = true; // mark as set
   }
 
   /**
@@ -189,6 +256,7 @@ public void setPending(Long pending) {
    */
   public Balance reserved(Long reserved) {
     this.reserved = reserved;
+    isSetReserved = true; // mark as set
     return this;
   }
 
@@ -212,6 +280,27 @@ public Long getReserved() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReserved(Long reserved) {
     this.reserved = reserved;
+    isSetReserved = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Balance includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Balance object is equal to o. */
@@ -228,12 +317,13 @@ public boolean equals(Object o) {
         && Objects.equals(this.balance, balance.balance)
         && Objects.equals(this.currency, balance.currency)
         && Objects.equals(this.pending, balance.pending)
+        && Objects.equals(this.pendingAvailable, balance.pendingAvailable)
         && Objects.equals(this.reserved, balance.reserved);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(available, balance, currency, pending, reserved);
+    return Objects.hash(available, balance, currency, pending, pendingAvailable, reserved);
   }
 
   @Override
@@ -244,6 +334,7 @@ public String toString() {
     sb.append("    balance: ").append(toIndentedString(balance)).append("\n");
     sb.append("    currency: ").append(toIndentedString(currency)).append("\n");
     sb.append("    pending: ").append(toIndentedString(pending)).append("\n");
+    sb.append("    pendingAvailable: ").append(toIndentedString(pendingAvailable)).append("\n");
     sb.append("    reserved: ").append(toIndentedString(reserved)).append("\n");
     sb.append("}");
     return sb.toString();
@@ -259,6 +350,45 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAvailable) {
+      addIfNull(nulls, JSON_PROPERTY_AVAILABLE, this.available);
+    }
+    if (isSetBalance) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE, this.balance);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetPending) {
+      addIfNull(nulls, JSON_PROPERTY_PENDING, this.pending);
+    }
+    if (isSetPendingAvailable) {
+      addIfNull(nulls, JSON_PROPERTY_PENDING_AVAILABLE, this.pendingAvailable);
+    }
+    if (isSetReserved) {
+      addIfNull(nulls, JSON_PROPERTY_RESERVED, this.reserved);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Balance given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceAccount.java b/src/main/java/com/adyen/model/balanceplatform/BalanceAccount.java
index 61c175894..c52fc165f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceAccount.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceAccount.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -43,31 +45,58 @@ public class BalanceAccount {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDER_ID = "accountHolderId";
   private String accountHolderId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolderId = false;
+
   public static final String JSON_PROPERTY_BALANCES = "balances";
   private List<Balance> balances;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalances = false;
+
   public static final String JSON_PROPERTY_DEFAULT_CURRENCY_CODE = "defaultCurrencyCode";
   private String defaultCurrencyCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDefaultCurrencyCode = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_CODE = "migratedAccountCode";
   private String migratedAccountCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountCode = false;
+
   public static final String JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION =
       "platformPaymentConfiguration";
   private PlatformPaymentConfiguration platformPaymentConfiguration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPlatformPaymentConfiguration = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /** The status of the balance account, set to **active** by default. */
   public enum StatusEnum {
     ACTIVE(String.valueOf("active")),
@@ -116,9 +145,21 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceAccount() {}
 
   @JsonCreator
@@ -140,6 +181,7 @@ public BalanceAccount(
    */
   public BalanceAccount accountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
     return this;
   }
 
@@ -171,6 +213,7 @@ public String getAccountHolderId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
   }
 
   /**
@@ -181,6 +224,7 @@ public void setAccountHolderId(String accountHolderId) {
    */
   public BalanceAccount balances(List<Balance> balances) {
     this.balances = balances;
+    isSetBalances = true; // mark as set
     return this;
   }
 
@@ -212,6 +256,7 @@ public List<Balance> getBalances() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalances(List<Balance> balances) {
     this.balances = balances;
+    isSetBalances = true; // mark as set
   }
 
   /**
@@ -230,6 +275,7 @@ public void setBalances(List<Balance> balances) {
    */
   public BalanceAccount defaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
     return this;
   }
 
@@ -269,6 +315,7 @@ public String getDefaultCurrencyCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDefaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
   }
 
   /**
@@ -282,6 +329,7 @@ public void setDefaultCurrencyCode(String defaultCurrencyCode) {
    */
   public BalanceAccount description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -311,6 +359,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -321,6 +370,7 @@ public void setDescription(String description) {
    */
   public BalanceAccount id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -344,6 +394,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -359,6 +410,7 @@ public void setId(String id) {
    */
   public BalanceAccount metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -400,6 +452,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -423,6 +476,7 @@ public String getMigratedAccountCode() {
   public BalanceAccount platformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
     return this;
   }
 
@@ -447,6 +501,7 @@ public PlatformPaymentConfiguration getPlatformPaymentConfiguration() {
   public void setPlatformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
   }
 
   /**
@@ -457,6 +512,7 @@ public void setPlatformPaymentConfiguration(
    */
   public BalanceAccount reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -480,6 +536,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -490,6 +547,7 @@ public void setReference(String reference) {
    */
   public BalanceAccount status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -513,6 +571,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -528,6 +587,7 @@ public void setStatus(StatusEnum status) {
    */
   public BalanceAccount timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -561,6 +621,27 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceAccount includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceAccount object is equal to o. */
@@ -638,6 +719,61 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolderId) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDER_ID, this.accountHolderId);
+    }
+    if (isSetBalances) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCES, this.balances);
+    }
+    if (isSetDefaultCurrencyCode) {
+      addIfNull(nulls, JSON_PROPERTY_DEFAULT_CURRENCY_CODE, this.defaultCurrencyCode);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_CODE, this.migratedAccountCode);
+    }
+    if (isSetPlatformPaymentConfiguration) {
+      addIfNull(
+          nulls, JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION, this.platformPaymentConfiguration);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceAccount given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountBase.java b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountBase.java
index 5ffc89b49..fc0a6635b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountBase.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountBase.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -40,28 +42,52 @@ public class BalanceAccountBase {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDER_ID = "accountHolderId";
   private String accountHolderId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolderId = false;
+
   public static final String JSON_PROPERTY_DEFAULT_CURRENCY_CODE = "defaultCurrencyCode";
   private String defaultCurrencyCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDefaultCurrencyCode = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_CODE = "migratedAccountCode";
   private String migratedAccountCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountCode = false;
+
   public static final String JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION =
       "platformPaymentConfiguration";
   private PlatformPaymentConfiguration platformPaymentConfiguration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPlatformPaymentConfiguration = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /** The status of the balance account, set to **active** by default. */
   public enum StatusEnum {
     ACTIVE(String.valueOf("active")),
@@ -110,9 +136,21 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceAccountBase() {}
 
   @JsonCreator
@@ -134,6 +172,7 @@ public BalanceAccountBase(
    */
   public BalanceAccountBase accountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
     return this;
   }
 
@@ -165,6 +204,7 @@ public String getAccountHolderId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
   }
 
   /**
@@ -183,6 +223,7 @@ public void setAccountHolderId(String accountHolderId) {
    */
   public BalanceAccountBase defaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
     return this;
   }
 
@@ -222,6 +263,7 @@ public String getDefaultCurrencyCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDefaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
   }
 
   /**
@@ -235,6 +277,7 @@ public void setDefaultCurrencyCode(String defaultCurrencyCode) {
    */
   public BalanceAccountBase description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -264,6 +307,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -274,6 +318,7 @@ public void setDescription(String description) {
    */
   public BalanceAccountBase id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -297,6 +342,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -312,6 +358,7 @@ public void setId(String id) {
    */
   public BalanceAccountBase metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -353,6 +400,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -376,6 +424,7 @@ public String getMigratedAccountCode() {
   public BalanceAccountBase platformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
     return this;
   }
 
@@ -400,6 +449,7 @@ public PlatformPaymentConfiguration getPlatformPaymentConfiguration() {
   public void setPlatformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
   }
 
   /**
@@ -410,6 +460,7 @@ public void setPlatformPaymentConfiguration(
    */
   public BalanceAccountBase reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -433,6 +484,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -443,6 +495,7 @@ public void setReference(String reference) {
    */
   public BalanceAccountBase status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -466,6 +519,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -481,6 +535,7 @@ public void setStatus(StatusEnum status) {
    */
   public BalanceAccountBase timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -514,6 +569,27 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceAccountBase includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceAccountBase object is equal to o. */
@@ -588,6 +664,58 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolderId) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDER_ID, this.accountHolderId);
+    }
+    if (isSetDefaultCurrencyCode) {
+      addIfNull(nulls, JSON_PROPERTY_DEFAULT_CURRENCY_CODE, this.defaultCurrencyCode);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_CODE, this.migratedAccountCode);
+    }
+    if (isSetPlatformPaymentConfiguration) {
+      addIfNull(
+          nulls, JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION, this.platformPaymentConfiguration);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceAccountBase given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountInfo.java b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountInfo.java
index f708e38b7..1a4757059 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,28 +37,58 @@ public class BalanceAccountInfo {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDER_ID = "accountHolderId";
   private String accountHolderId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolderId = false;
+
   public static final String JSON_PROPERTY_DEFAULT_CURRENCY_CODE = "defaultCurrencyCode";
   private String defaultCurrencyCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDefaultCurrencyCode = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_MIGRATED_ACCOUNT_CODE = "migratedAccountCode";
   private String migratedAccountCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMigratedAccountCode = false;
+
   public static final String JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION =
       "platformPaymentConfiguration";
   private PlatformPaymentConfiguration platformPaymentConfiguration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPlatformPaymentConfiguration = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceAccountInfo() {}
 
   @JsonCreator
@@ -78,6 +110,7 @@ public BalanceAccountInfo(
    */
   public BalanceAccountInfo accountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
     return this;
   }
 
@@ -109,6 +142,7 @@ public String getAccountHolderId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
   }
 
   /**
@@ -127,6 +161,7 @@ public void setAccountHolderId(String accountHolderId) {
    */
   public BalanceAccountInfo defaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
     return this;
   }
 
@@ -166,6 +201,7 @@ public String getDefaultCurrencyCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDefaultCurrencyCode(String defaultCurrencyCode) {
     this.defaultCurrencyCode = defaultCurrencyCode;
+    isSetDefaultCurrencyCode = true; // mark as set
   }
 
   /**
@@ -179,6 +215,7 @@ public void setDefaultCurrencyCode(String defaultCurrencyCode) {
    */
   public BalanceAccountInfo description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -208,6 +245,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -223,6 +261,7 @@ public void setDescription(String description) {
    */
   public BalanceAccountInfo metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -264,6 +303,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -287,6 +327,7 @@ public String getMigratedAccountCode() {
   public BalanceAccountInfo platformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
     return this;
   }
 
@@ -311,6 +352,7 @@ public PlatformPaymentConfiguration getPlatformPaymentConfiguration() {
   public void setPlatformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
   }
 
   /**
@@ -321,6 +363,7 @@ public void setPlatformPaymentConfiguration(
    */
   public BalanceAccountInfo reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -344,6 +387,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -359,6 +403,7 @@ public void setReference(String reference) {
    */
   public BalanceAccountInfo timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -392,6 +437,27 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceAccountInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceAccountInfo object is equal to o. */
@@ -460,6 +526,52 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolderId) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDER_ID, this.accountHolderId);
+    }
+    if (isSetDefaultCurrencyCode) {
+      addIfNull(nulls, JSON_PROPERTY_DEFAULT_CURRENCY_CODE, this.defaultCurrencyCode);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetMigratedAccountCode) {
+      addIfNull(nulls, JSON_PROPERTY_MIGRATED_ACCOUNT_CODE, this.migratedAccountCode);
+    }
+    if (isSetPlatformPaymentConfiguration) {
+      addIfNull(
+          nulls, JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION, this.platformPaymentConfiguration);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceAccountInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountUpdateRequest.java b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountUpdateRequest.java
index 5cd3126b2..7ffd41bb5 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceAccountUpdateRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceAccountUpdateRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,19 +39,34 @@ public class BalanceAccountUpdateRequest {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDER_ID = "accountHolderId";
   private String accountHolderId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolderId = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_METADATA = "metadata";
   private Map<String, String> metadata;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMetadata = false;
+
   public static final String JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION =
       "platformPaymentConfiguration";
   private PlatformPaymentConfiguration platformPaymentConfiguration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPlatformPaymentConfiguration = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * The status of the balance account. Payment instruments linked to the balance account can only
    * be used if the balance account status is **active**. Possible values: **active**, **closed**,
@@ -102,9 +119,21 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceAccountUpdateRequest() {}
 
   /**
@@ -119,6 +148,7 @@ public BalanceAccountUpdateRequest() {}
    */
   public BalanceAccountUpdateRequest accountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
     return this;
   }
 
@@ -150,6 +180,7 @@ public String getAccountHolderId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
   }
 
   /**
@@ -162,6 +193,7 @@ public void setAccountHolderId(String accountHolderId) {
    */
   public BalanceAccountUpdateRequest description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -189,6 +221,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -204,6 +237,7 @@ public void setDescription(String description) {
    */
   public BalanceAccountUpdateRequest metadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
     return this;
   }
 
@@ -245,6 +279,7 @@ public Map<String, String> getMetadata() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMetadata(Map<String, String> metadata) {
     this.metadata = metadata;
+    isSetMetadata = true; // mark as set
   }
 
   /**
@@ -256,6 +291,7 @@ public void setMetadata(Map<String, String> metadata) {
   public BalanceAccountUpdateRequest platformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
     return this;
   }
 
@@ -280,6 +316,7 @@ public PlatformPaymentConfiguration getPlatformPaymentConfiguration() {
   public void setPlatformPaymentConfiguration(
       PlatformPaymentConfiguration platformPaymentConfiguration) {
     this.platformPaymentConfiguration = platformPaymentConfiguration;
+    isSetPlatformPaymentConfiguration = true; // mark as set
   }
 
   /**
@@ -290,6 +327,7 @@ public void setPlatformPaymentConfiguration(
    */
   public BalanceAccountUpdateRequest reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -313,6 +351,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -327,6 +366,7 @@ public void setReference(String reference) {
    */
   public BalanceAccountUpdateRequest status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -358,6 +398,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -373,6 +414,7 @@ public void setStatus(StatusEnum status) {
    */
   public BalanceAccountUpdateRequest timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -406,6 +448,27 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceAccountUpdateRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceAccountUpdateRequest object is equal to o. */
@@ -468,6 +531,49 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolderId) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDER_ID, this.accountHolderId);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetMetadata) {
+      addIfNull(nulls, JSON_PROPERTY_METADATA, this.metadata);
+    }
+    if (isSetPlatformPaymentConfiguration) {
+      addIfNull(
+          nulls, JSON_PROPERTY_PLATFORM_PAYMENT_CONFIGURATION, this.platformPaymentConfiguration);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceAccountUpdateRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalancePlatform.java b/src/main/java/com/adyen/model/balanceplatform/BalancePlatform.java
index af312dddc..abc379ec9 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalancePlatform.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalancePlatform.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class BalancePlatform {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private String status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalancePlatform() {}
 
   /**
@@ -43,6 +60,7 @@ public BalancePlatform() {}
    */
   public BalancePlatform description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -66,6 +84,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -76,6 +95,7 @@ public void setDescription(String description) {
    */
   public BalancePlatform id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -99,6 +119,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -111,6 +132,7 @@ public void setId(String id) {
    */
   public BalancePlatform status(String status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -138,6 +160,27 @@ public String getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(String status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalancePlatform includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalancePlatform object is equal to o. */
@@ -181,6 +224,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalancePlatform given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceSweepConfigurationsResponse.java b/src/main/java/com/adyen/model/balanceplatform/BalanceSweepConfigurationsResponse.java
index 625bfc41b..4a87115ae 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceSweepConfigurationsResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceSweepConfigurationsResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class BalanceSweepConfigurationsResponse {
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
   public static final String JSON_PROPERTY_SWEEPS = "sweeps";
   private List<SweepConfigurationV2> sweeps;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSweeps = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceSweepConfigurationsResponse() {}
 
   /**
@@ -46,6 +63,7 @@ public BalanceSweepConfigurationsResponse() {}
    */
   public BalanceSweepConfigurationsResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -69,6 +87,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -80,6 +99,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public BalanceSweepConfigurationsResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -103,6 +123,7 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
   }
 
   /**
@@ -114,6 +135,7 @@ public void setHasPrevious(Boolean hasPrevious) {
    */
   public BalanceSweepConfigurationsResponse sweeps(List<SweepConfigurationV2> sweeps) {
     this.sweeps = sweeps;
+    isSetSweeps = true; // mark as set
     return this;
   }
 
@@ -145,6 +167,27 @@ public List<SweepConfigurationV2> getSweeps() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSweeps(List<SweepConfigurationV2> sweeps) {
     this.sweeps = sweeps;
+    isSetSweeps = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceSweepConfigurationsResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceSweepConfigurationsResponse object is equal to o. */
@@ -189,6 +232,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+    if (isSetSweeps) {
+      addIfNull(nulls, JSON_PROPERTY_SWEEPS, this.sweeps);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceSweepConfigurationsResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSetting.java b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSetting.java
index b115c25ff..cc91a6b40 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSetting.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSetting.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
@@ -38,6 +40,15 @@ public class BalanceWebhookSetting extends WebhookSetting {
   public static final String JSON_PROPERTY_CONDITIONS = "conditions";
   private List<Condition> conditions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConditions = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceWebhookSetting() {}
 
   /**
@@ -50,6 +61,7 @@ public BalanceWebhookSetting() {}
    */
   public BalanceWebhookSetting conditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
     return this;
   }
 
@@ -85,6 +97,27 @@ public List<Condition> getConditions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceWebhookSetting includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceWebhookSetting object is equal to o. */
@@ -132,6 +165,30 @@ private String toIndentedString(Object o) {
     JSON.registerDiscriminator(BalanceWebhookSetting.class, "type", mappings);
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetConditions) {
+      addIfNull(nulls, JSON_PROPERTY_CONDITIONS, this.conditions);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceWebhookSetting given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfo.java b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfo.java
index 5f084f64c..ebb9cf22c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,9 +37,15 @@ public class BalanceWebhookSettingInfo {
   public static final String JSON_PROPERTY_CONDITIONS = "conditions";
   private List<Condition> conditions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConditions = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   /**
    * The status of the webhook setting. Possible values: * **active**: You receive a balance webhook
    * if any of the conditions in this setting are met. * **inactive**: You do not receive a balance
@@ -86,9 +94,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TARGET = "target";
   private Target target;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTarget = false;
+
   /** The type of the webhook you are configuring. Set to **balance**. */
   public enum TypeEnum {
     BALANCE(String.valueOf("balance"));
@@ -131,6 +145,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceWebhookSettingInfo() {}
 
   /**
@@ -142,6 +165,7 @@ public BalanceWebhookSettingInfo() {}
    */
   public BalanceWebhookSettingInfo conditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
     return this;
   }
 
@@ -175,6 +199,7 @@ public List<Condition> getConditions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
   }
 
   /**
@@ -187,6 +212,7 @@ public void setConditions(List<Condition> conditions) {
    */
   public BalanceWebhookSettingInfo currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -214,6 +240,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -228,6 +255,7 @@ public void setCurrency(String currency) {
    */
   public BalanceWebhookSettingInfo status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -259,6 +287,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -269,6 +298,7 @@ public void setStatus(StatusEnum status) {
    */
   public BalanceWebhookSettingInfo target(Target target) {
     this.target = target;
+    isSetTarget = true; // mark as set
     return this;
   }
 
@@ -292,6 +322,7 @@ public Target getTarget() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTarget(Target target) {
     this.target = target;
+    isSetTarget = true; // mark as set
   }
 
   /**
@@ -302,6 +333,7 @@ public void setTarget(Target target) {
    */
   public BalanceWebhookSettingInfo type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -325,6 +357,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceWebhookSettingInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceWebhookSettingInfo object is equal to o. */
@@ -372,6 +425,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetConditions) {
+      addIfNull(nulls, JSON_PROPERTY_CONDITIONS, this.conditions);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTarget) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET, this.target);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceWebhookSettingInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfoUpdate.java b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfoUpdate.java
index dd077c2f3..66cf74afa 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfoUpdate.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BalanceWebhookSettingInfoUpdate.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,9 +37,15 @@ public class BalanceWebhookSettingInfoUpdate {
   public static final String JSON_PROPERTY_CONDITIONS = "conditions";
   private List<Condition> conditions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConditions = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   /**
    * The status of the webhook setting. Possible values: * **active**: You receive a balance webhook
    * if any of the conditions in this setting are met. * **inactive**: You do not receive a balance
@@ -86,9 +94,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TARGET = "target";
   private TargetUpdate target;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTarget = false;
+
   /** The type of the webhook you are configuring. Set to **balance**. */
   public enum TypeEnum {
     BALANCE(String.valueOf("balance"));
@@ -131,6 +145,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BalanceWebhookSettingInfoUpdate() {}
 
   /**
@@ -143,6 +166,7 @@ public BalanceWebhookSettingInfoUpdate() {}
    */
   public BalanceWebhookSettingInfoUpdate conditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
     return this;
   }
 
@@ -176,6 +200,7 @@ public List<Condition> getConditions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConditions(List<Condition> conditions) {
     this.conditions = conditions;
+    isSetConditions = true; // mark as set
   }
 
   /**
@@ -189,6 +214,7 @@ public void setConditions(List<Condition> conditions) {
    */
   public BalanceWebhookSettingInfoUpdate currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -216,6 +242,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -231,6 +258,7 @@ public void setCurrency(String currency) {
    */
   public BalanceWebhookSettingInfoUpdate status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -262,6 +290,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -273,6 +302,7 @@ public void setStatus(StatusEnum status) {
    */
   public BalanceWebhookSettingInfoUpdate target(TargetUpdate target) {
     this.target = target;
+    isSetTarget = true; // mark as set
     return this;
   }
 
@@ -296,6 +326,7 @@ public TargetUpdate getTarget() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTarget(TargetUpdate target) {
     this.target = target;
+    isSetTarget = true; // mark as set
   }
 
   /**
@@ -307,6 +338,7 @@ public void setTarget(TargetUpdate target) {
    */
   public BalanceWebhookSettingInfoUpdate type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -330,6 +362,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BalanceWebhookSettingInfoUpdate includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BalanceWebhookSettingInfoUpdate object is equal to o. */
@@ -378,6 +431,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetConditions) {
+      addIfNull(nulls, JSON_PROPERTY_CONDITIONS, this.conditions);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTarget) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET, this.target);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BalanceWebhookSettingInfoUpdate given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankAccount.java b/src/main/java/com/adyen/model/balanceplatform/BankAccount.java
index 0e9722170..9a98f6ed2 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankAccount.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankAccount.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class BankAccount {
   public static final String JSON_PROPERTY_ACCOUNT_IDENTIFICATION = "accountIdentification";
   private BankAccountAccountIdentification accountIdentification;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountIdentification = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankAccount() {}
 
   /**
@@ -33,6 +44,7 @@ public BankAccount() {}
    */
   public BankAccount accountIdentification(BankAccountAccountIdentification accountIdentification) {
     this.accountIdentification = accountIdentification;
+    isSetAccountIdentification = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public BankAccountAccountIdentification getAccountIdentification() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountIdentification(BankAccountAccountIdentification accountIdentification) {
     this.accountIdentification = accountIdentification;
+    isSetAccountIdentification = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankAccount includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankAccount object is equal to o. */
@@ -97,6 +130,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountIdentification) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_IDENTIFICATION, this.accountIdentification);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankAccount given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankAccountDetails.java b/src/main/java/com/adyen/model/balanceplatform/BankAccountDetails.java
index 1e2a8749b..cb389aa5b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankAccountDetails.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankAccountDetails.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,27 +34,57 @@ public class BankAccountDetails {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_ACCOUNT_TYPE = "accountType";
   private String accountType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountType = false;
+
   public static final String JSON_PROPERTY_BRANCH_NUMBER = "branchNumber";
   private String branchNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBranchNumber = false;
+
   public static final String JSON_PROPERTY_FORM_FACTOR = "formFactor";
   private String formFactor;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFormFactor = false;
+
   public static final String JSON_PROPERTY_IBAN = "iban";
   private String iban;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIban = false;
+
   public static final String JSON_PROPERTY_ROUTING_NUMBER = "routingNumber";
   private String routingNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRoutingNumber = false;
+
   public static final String JSON_PROPERTY_SORT_CODE = "sortCode";
   private String sortCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSortCode = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private String type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankAccountDetails() {}
 
   /**
@@ -63,6 +95,7 @@ public BankAccountDetails() {}
    */
   public BankAccountDetails accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -86,6 +119,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -97,6 +131,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public BankAccountDetails accountType(String accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
     return this;
   }
 
@@ -122,6 +157,7 @@ public String getAccountType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountType(String accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
   }
 
   /**
@@ -132,6 +168,7 @@ public void setAccountType(String accountType) {
    */
   public BankAccountDetails branchNumber(String branchNumber) {
     this.branchNumber = branchNumber;
+    isSetBranchNumber = true; // mark as set
     return this;
   }
 
@@ -155,6 +192,7 @@ public String getBranchNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBranchNumber(String branchNumber) {
     this.branchNumber = branchNumber;
+    isSetBranchNumber = true; // mark as set
   }
 
   /**
@@ -175,6 +213,7 @@ public void setBranchNumber(String branchNumber) {
    */
   public BankAccountDetails formFactor(String formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
     return this;
   }
 
@@ -218,6 +257,7 @@ public String getFormFactor() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFormFactor(String formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
   }
 
   /**
@@ -230,6 +270,7 @@ public void setFormFactor(String formFactor) {
    */
   public BankAccountDetails iban(String iban) {
     this.iban = iban;
+    isSetIban = true; // mark as set
     return this;
   }
 
@@ -257,6 +298,7 @@ public String getIban() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIban(String iban) {
     this.iban = iban;
+    isSetIban = true; // mark as set
   }
 
   /**
@@ -270,6 +312,7 @@ public void setIban(String iban) {
    */
   public BankAccountDetails routingNumber(String routingNumber) {
     this.routingNumber = routingNumber;
+    isSetRoutingNumber = true; // mark as set
     return this;
   }
 
@@ -299,6 +342,7 @@ public String getRoutingNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRoutingNumber(String routingNumber) {
     this.routingNumber = routingNumber;
+    isSetRoutingNumber = true; // mark as set
   }
 
   /**
@@ -310,6 +354,7 @@ public void setRoutingNumber(String routingNumber) {
    */
   public BankAccountDetails sortCode(String sortCode) {
     this.sortCode = sortCode;
+    isSetSortCode = true; // mark as set
     return this;
   }
 
@@ -335,6 +380,7 @@ public String getSortCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSortCode(String sortCode) {
     this.sortCode = sortCode;
+    isSetSortCode = true; // mark as set
   }
 
   /**
@@ -345,6 +391,7 @@ public void setSortCode(String sortCode) {
    */
   public BankAccountDetails type(String type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -368,6 +415,27 @@ public String getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(String type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankAccountDetails includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankAccountDetails object is equal to o. */
@@ -422,6 +490,51 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetAccountType) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_TYPE, this.accountType);
+    }
+    if (isSetBranchNumber) {
+      addIfNull(nulls, JSON_PROPERTY_BRANCH_NUMBER, this.branchNumber);
+    }
+    if (isSetFormFactor) {
+      addIfNull(nulls, JSON_PROPERTY_FORM_FACTOR, this.formFactor);
+    }
+    if (isSetIban) {
+      addIfNull(nulls, JSON_PROPERTY_IBAN, this.iban);
+    }
+    if (isSetRoutingNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ROUTING_NUMBER, this.routingNumber);
+    }
+    if (isSetSortCode) {
+      addIfNull(nulls, JSON_PROPERTY_SORT_CODE, this.sortCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankAccountDetails given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationTypeRequirement.java b/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationTypeRequirement.java
index 5e2c81059..e712a4bac 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationTypeRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationTypeRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -106,9 +108,15 @@ public static BankAccountIdentificationTypesEnum fromValue(String value) {
       "bankAccountIdentificationTypes";
   private List<BankAccountIdentificationTypesEnum> bankAccountIdentificationTypes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankAccountIdentificationTypes = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **bankAccountIdentificationTypeRequirement** */
   public enum TypeEnum {
     BANKACCOUNTIDENTIFICATIONTYPEREQUIREMENT(
@@ -152,6 +160,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankAccountIdentificationTypeRequirement() {}
 
   /**
@@ -165,6 +182,7 @@ public BankAccountIdentificationTypeRequirement() {}
   public BankAccountIdentificationTypeRequirement bankAccountIdentificationTypes(
       List<BankAccountIdentificationTypesEnum> bankAccountIdentificationTypes) {
     this.bankAccountIdentificationTypes = bankAccountIdentificationTypes;
+    isSetBankAccountIdentificationTypes = true; // mark as set
     return this;
   }
 
@@ -200,6 +218,7 @@ public List<BankAccountIdentificationTypesEnum> getBankAccountIdentificationType
   public void setBankAccountIdentificationTypes(
       List<BankAccountIdentificationTypesEnum> bankAccountIdentificationTypes) {
     this.bankAccountIdentificationTypes = bankAccountIdentificationTypes;
+    isSetBankAccountIdentificationTypes = true; // mark as set
   }
 
   /**
@@ -214,6 +233,7 @@ public void setBankAccountIdentificationTypes(
    */
   public BankAccountIdentificationTypeRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -243,6 +263,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -254,6 +275,7 @@ public void setDescription(String description) {
    */
   public BankAccountIdentificationTypeRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -277,6 +299,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankAccountIdentificationTypeRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankAccountIdentificationTypeRequirement object is equal to o. */
@@ -325,6 +368,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBankAccountIdentificationTypes) {
+      addIfNull(
+          nulls,
+          JSON_PROPERTY_BANK_ACCOUNT_IDENTIFICATION_TYPES,
+          this.bankAccountIdentificationTypes);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankAccountIdentificationTypeRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationValidationRequest.java b/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationValidationRequest.java
index fbe2d5565..cdb1c9311 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationValidationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankAccountIdentificationValidationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class BankAccountIdentificationValidationRequest {
   public static final String JSON_PROPERTY_ACCOUNT_IDENTIFICATION = "accountIdentification";
   private BankAccountIdentificationValidationRequestAccountIdentification accountIdentification;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountIdentification = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankAccountIdentificationValidationRequest() {}
 
   /**
@@ -37,6 +48,7 @@ public BankAccountIdentificationValidationRequest() {}
   public BankAccountIdentificationValidationRequest accountIdentification(
       BankAccountIdentificationValidationRequestAccountIdentification accountIdentification) {
     this.accountIdentification = accountIdentification;
+    isSetAccountIdentification = true; // mark as set
     return this;
   }
 
@@ -62,6 +74,27 @@ public BankAccountIdentificationValidationRequest accountIdentification(
   public void setAccountIdentification(
       BankAccountIdentificationValidationRequestAccountIdentification accountIdentification) {
     this.accountIdentification = accountIdentification;
+    isSetAccountIdentification = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankAccountIdentificationValidationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankAccountIdentificationValidationRequest object is equal to o. */
@@ -106,6 +139,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountIdentification) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_IDENTIFICATION, this.accountIdentification);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankAccountIdentificationValidationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankAccountModel.java b/src/main/java/com/adyen/model/balanceplatform/BankAccountModel.java
index 821cb6521..252744e02 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankAccountModel.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankAccountModel.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -77,6 +79,15 @@ public static FormFactorEnum fromValue(String value) {
   public static final String JSON_PROPERTY_FORM_FACTOR = "formFactor";
   private FormFactorEnum formFactor;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFormFactor = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankAccountModel() {}
 
   /**
@@ -97,6 +108,7 @@ public BankAccountModel() {}
    */
   public BankAccountModel formFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
     return this;
   }
 
@@ -140,6 +152,27 @@ public FormFactorEnum getFormFactor() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFormFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankAccountModel includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankAccountModel object is equal to o. */
@@ -179,6 +212,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetFormFactor) {
+      addIfNull(nulls, JSON_PROPERTY_FORM_FACTOR, this.formFactor);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankAccountModel given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BankIdentification.java b/src/main/java/com/adyen/model/balanceplatform/BankIdentification.java
index 7c393dbe2..5a52b14b8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BankIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BankIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class BankIdentification {
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_IDENTIFICATION = "identification";
   private String identification;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIdentification = false;
+
   /**
    * The type of the identification. Possible values: **iban**, **routingNumber**, **sortCode**,
    * **bic**.
@@ -85,6 +93,15 @@ public static IdentificationTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_IDENTIFICATION_TYPE = "identificationType";
   private IdentificationTypeEnum identificationType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIdentificationType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BankIdentification() {}
 
   /**
@@ -97,6 +114,7 @@ public BankIdentification() {}
    */
   public BankIdentification country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -124,6 +142,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -134,6 +153,7 @@ public void setCountry(String country) {
    */
   public BankIdentification identification(String identification) {
     this.identification = identification;
+    isSetIdentification = true; // mark as set
     return this;
   }
 
@@ -157,6 +177,7 @@ public String getIdentification() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIdentification(String identification) {
     this.identification = identification;
+    isSetIdentification = true; // mark as set
   }
 
   /**
@@ -169,6 +190,7 @@ public void setIdentification(String identification) {
    */
   public BankIdentification identificationType(IdentificationTypeEnum identificationType) {
     this.identificationType = identificationType;
+    isSetIdentificationType = true; // mark as set
     return this;
   }
 
@@ -196,6 +218,27 @@ public IdentificationTypeEnum getIdentificationType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIdentificationType(IdentificationTypeEnum identificationType) {
     this.identificationType = identificationType;
+    isSetIdentificationType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BankIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BankIdentification object is equal to o. */
@@ -239,6 +282,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetIdentification) {
+      addIfNull(nulls, JSON_PROPERTY_IDENTIFICATION, this.identification);
+    }
+    if (isSetIdentificationType) {
+      addIfNull(nulls, JSON_PROPERTY_IDENTIFICATION_TYPE, this.identificationType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BankIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationRequest.java b/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationRequest.java
index cb12b21c4..424df2ae5 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class BeginScaDeviceRegistrationRequest {
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_SDK_OUTPUT = "sdkOutput";
   private String sdkOutput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkOutput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BeginScaDeviceRegistrationRequest() {}
 
   /**
@@ -42,6 +56,7 @@ public BeginScaDeviceRegistrationRequest() {}
    */
   public BeginScaDeviceRegistrationRequest name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -69,6 +84,7 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -82,6 +98,7 @@ public void setName(String name) {
    */
   public BeginScaDeviceRegistrationRequest sdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
     return this;
   }
 
@@ -109,6 +126,27 @@ public String getSdkOutput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BeginScaDeviceRegistrationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BeginScaDeviceRegistrationRequest object is equal to o. */
@@ -151,6 +189,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetSdkOutput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_OUTPUT, this.sdkOutput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BeginScaDeviceRegistrationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationResponse.java b/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationResponse.java
index 21eb14e82..6d1f061fd 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BeginScaDeviceRegistrationResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class BeginScaDeviceRegistrationResponse {
   public static final String JSON_PROPERTY_SCA_DEVICE = "scaDevice";
   private ScaDevice scaDevice;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDevice = false;
+
   public static final String JSON_PROPERTY_SDK_INPUT = "sdkInput";
   private String sdkInput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkInput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BeginScaDeviceRegistrationResponse() {}
 
   /**
@@ -40,6 +54,7 @@ public BeginScaDeviceRegistrationResponse() {}
    */
   public BeginScaDeviceRegistrationResponse scaDevice(ScaDevice scaDevice) {
     this.scaDevice = scaDevice;
+    isSetScaDevice = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public ScaDevice getScaDevice() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDevice(ScaDevice scaDevice) {
     this.scaDevice = scaDevice;
+    isSetScaDevice = true; // mark as set
   }
 
   /**
@@ -76,6 +92,7 @@ public void setScaDevice(ScaDevice scaDevice) {
    */
   public BeginScaDeviceRegistrationResponse sdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
     return this;
   }
 
@@ -103,6 +120,27 @@ public String getSdkInput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BeginScaDeviceRegistrationResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BeginScaDeviceRegistrationResponse object is equal to o. */
@@ -145,6 +183,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetScaDevice) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE, this.scaDevice);
+    }
+    if (isSetSdkInput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_INPUT, this.sdkInput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BeginScaDeviceRegistrationResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BrandVariantsRestriction.java b/src/main/java/com/adyen/model/balanceplatform/BrandVariantsRestriction.java
index fc760cce2..2d82f4639 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BrandVariantsRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BrandVariantsRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class BrandVariantsRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<String> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BrandVariantsRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public BrandVariantsRestriction() {}
    */
   public BrandVariantsRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -84,6 +100,7 @@ public void setOperation(String operation) {
    */
   public BrandVariantsRestriction value(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -135,6 +152,27 @@ public List<String> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BrandVariantsRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BrandVariantsRestriction object is equal to o. */
@@ -176,6 +214,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BrandVariantsRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/BulkAddress.java b/src/main/java/com/adyen/model/balanceplatform/BulkAddress.java
index da8276fd7..0acbcca89 100644
--- a/src/main/java/com/adyen/model/balanceplatform/BulkAddress.java
+++ b/src/main/java/com/adyen/model/balanceplatform/BulkAddress.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,6 +30,7 @@
   BulkAddress.JSON_PROPERTY_LINE2,
   BulkAddress.JSON_PROPERTY_LINE3,
   BulkAddress.JSON_PROPERTY_MOBILE,
+  BulkAddress.JSON_PROPERTY_NAME,
   BulkAddress.JSON_PROPERTY_POSTAL_CODE,
   BulkAddress.JSON_PROPERTY_STATE_OR_PROVINCE,
   BulkAddress.JSON_PROPERTY_STREET
@@ -36,39 +39,87 @@ public class BulkAddress {
   public static final String JSON_PROPERTY_CITY = "city";
   private String city;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCity = false;
+
   public static final String JSON_PROPERTY_COMPANY = "company";
   private String company;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCompany = false;
+
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_EMAIL = "email";
   private String email;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEmail = false;
+
   public static final String JSON_PROPERTY_HOUSE_NUMBER_OR_NAME = "houseNumberOrName";
   private String houseNumberOrName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHouseNumberOrName = false;
+
   public static final String JSON_PROPERTY_LINE1 = "line1";
   private String line1;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine1 = false;
+
   public static final String JSON_PROPERTY_LINE2 = "line2";
   private String line2;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine2 = false;
+
   public static final String JSON_PROPERTY_LINE3 = "line3";
   private String line3;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine3 = false;
+
   public static final String JSON_PROPERTY_MOBILE = "mobile";
   private String mobile;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMobile = false;
+
+  public static final String JSON_PROPERTY_NAME = "name";
+  private String name;
+
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_POSTAL_CODE = "postalCode";
   private String postalCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPostalCode = false;
+
   public static final String JSON_PROPERTY_STATE_OR_PROVINCE = "stateOrProvince";
   private String stateOrProvince;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStateOrProvince = false;
+
   public static final String JSON_PROPERTY_STREET = "street";
   private String street;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStreet = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public BulkAddress() {}
 
   /**
@@ -79,6 +130,7 @@ public BulkAddress() {}
    */
   public BulkAddress city(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
     return this;
   }
 
@@ -102,6 +154,7 @@ public String getCity() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCity(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
   }
 
   /**
@@ -112,6 +165,7 @@ public void setCity(String city) {
    */
   public BulkAddress company(String company) {
     this.company = company;
+    isSetCompany = true; // mark as set
     return this;
   }
 
@@ -135,6 +189,7 @@ public String getCompany() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCompany(String company) {
     this.company = company;
+    isSetCompany = true; // mark as set
   }
 
   /**
@@ -145,6 +200,7 @@ public void setCompany(String company) {
    */
   public BulkAddress country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -168,6 +224,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -178,6 +235,7 @@ public void setCountry(String country) {
    */
   public BulkAddress email(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
     return this;
   }
 
@@ -201,6 +259,7 @@ public String getEmail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEmail(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
   }
 
   /**
@@ -211,6 +270,7 @@ public void setEmail(String email) {
    */
   public BulkAddress houseNumberOrName(String houseNumberOrName) {
     this.houseNumberOrName = houseNumberOrName;
+    isSetHouseNumberOrName = true; // mark as set
     return this;
   }
 
@@ -234,6 +294,7 @@ public String getHouseNumberOrName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHouseNumberOrName(String houseNumberOrName) {
     this.houseNumberOrName = houseNumberOrName;
+    isSetHouseNumberOrName = true; // mark as set
   }
 
   /**
@@ -246,6 +307,7 @@ public void setHouseNumberOrName(String houseNumberOrName) {
    */
   public BulkAddress line1(String line1) {
     this.line1 = line1;
+    isSetLine1 = true; // mark as set
     return this;
   }
 
@@ -273,6 +335,7 @@ public String getLine1() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine1(String line1) {
     this.line1 = line1;
+    isSetLine1 = true; // mark as set
   }
 
   /**
@@ -284,6 +347,7 @@ public void setLine1(String line1) {
    */
   public BulkAddress line2(String line2) {
     this.line2 = line2;
+    isSetLine2 = true; // mark as set
     return this;
   }
 
@@ -309,6 +373,7 @@ public String getLine2() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine2(String line2) {
     this.line2 = line2;
+    isSetLine2 = true; // mark as set
   }
 
   /**
@@ -319,6 +384,7 @@ public void setLine2(String line2) {
    */
   public BulkAddress line3(String line3) {
     this.line3 = line3;
+    isSetLine3 = true; // mark as set
     return this;
   }
 
@@ -342,6 +408,7 @@ public String getLine3() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine3(String line3) {
     this.line3 = line3;
+    isSetLine3 = true; // mark as set
   }
 
   /**
@@ -352,6 +419,7 @@ public void setLine3(String line3) {
    */
   public BulkAddress mobile(String mobile) {
     this.mobile = mobile;
+    isSetMobile = true; // mark as set
     return this;
   }
 
@@ -375,6 +443,42 @@ public String getMobile() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMobile(String mobile) {
     this.mobile = mobile;
+    isSetMobile = true; // mark as set
+  }
+
+  /**
+   * The recipient’s name (person or contact), for example ‘John Doe’.
+   *
+   * @param name The recipient’s name (person or contact), for example ‘John Doe’.
+   * @return the current {@code BulkAddress} instance, allowing for method chaining
+   */
+  public BulkAddress name(String name) {
+    this.name = name;
+    isSetName = true; // mark as set
+    return this;
+  }
+
+  /**
+   * The recipient’s name (person or contact), for example ‘John Doe’.
+   *
+   * @return name The recipient’s name (person or contact), for example ‘John Doe’.
+   */
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public String getName() {
+    return name;
+  }
+
+  /**
+   * The recipient’s name (person or contact), for example ‘John Doe’.
+   *
+   * @param name The recipient’s name (person or contact), for example ‘John Doe’.
+   */
+  @JsonProperty(JSON_PROPERTY_NAME)
+  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
+  public void setName(String name) {
+    this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -387,6 +491,7 @@ public void setMobile(String mobile) {
    */
   public BulkAddress postalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
     return this;
   }
 
@@ -414,6 +519,7 @@ public String getPostalCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPostalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
   }
 
   /**
@@ -426,6 +532,7 @@ public void setPostalCode(String postalCode) {
    */
   public BulkAddress stateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
     return this;
   }
 
@@ -453,6 +560,7 @@ public String getStateOrProvince() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
   }
 
   /**
@@ -463,6 +571,7 @@ public void setStateOrProvince(String stateOrProvince) {
    */
   public BulkAddress street(String street) {
     this.street = street;
+    isSetStreet = true; // mark as set
     return this;
   }
 
@@ -486,6 +595,27 @@ public String getStreet() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStreet(String street) {
     this.street = street;
+    isSetStreet = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public BulkAddress includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this BulkAddress object is equal to o. */
@@ -507,6 +637,7 @@ public boolean equals(Object o) {
         && Objects.equals(this.line2, bulkAddress.line2)
         && Objects.equals(this.line3, bulkAddress.line3)
         && Objects.equals(this.mobile, bulkAddress.mobile)
+        && Objects.equals(this.name, bulkAddress.name)
         && Objects.equals(this.postalCode, bulkAddress.postalCode)
         && Objects.equals(this.stateOrProvince, bulkAddress.stateOrProvince)
         && Objects.equals(this.street, bulkAddress.street);
@@ -524,6 +655,7 @@ public int hashCode() {
         line2,
         line3,
         mobile,
+        name,
         postalCode,
         stateOrProvince,
         street);
@@ -542,6 +674,7 @@ public String toString() {
     sb.append("    line2: ").append(toIndentedString(line2)).append("\n");
     sb.append("    line3: ").append(toIndentedString(line3)).append("\n");
     sb.append("    mobile: ").append(toIndentedString(mobile)).append("\n");
+    sb.append("    name: ").append(toIndentedString(name)).append("\n");
     sb.append("    postalCode: ").append(toIndentedString(postalCode)).append("\n");
     sb.append("    stateOrProvince: ").append(toIndentedString(stateOrProvince)).append("\n");
     sb.append("    street: ").append(toIndentedString(street)).append("\n");
@@ -559,6 +692,66 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCity) {
+      addIfNull(nulls, JSON_PROPERTY_CITY, this.city);
+    }
+    if (isSetCompany) {
+      addIfNull(nulls, JSON_PROPERTY_COMPANY, this.company);
+    }
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetEmail) {
+      addIfNull(nulls, JSON_PROPERTY_EMAIL, this.email);
+    }
+    if (isSetHouseNumberOrName) {
+      addIfNull(nulls, JSON_PROPERTY_HOUSE_NUMBER_OR_NAME, this.houseNumberOrName);
+    }
+    if (isSetLine1) {
+      addIfNull(nulls, JSON_PROPERTY_LINE1, this.line1);
+    }
+    if (isSetLine2) {
+      addIfNull(nulls, JSON_PROPERTY_LINE2, this.line2);
+    }
+    if (isSetLine3) {
+      addIfNull(nulls, JSON_PROPERTY_LINE3, this.line3);
+    }
+    if (isSetMobile) {
+      addIfNull(nulls, JSON_PROPERTY_MOBILE, this.mobile);
+    }
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetPostalCode) {
+      addIfNull(nulls, JSON_PROPERTY_POSTAL_CODE, this.postalCode);
+    }
+    if (isSetStateOrProvince) {
+      addIfNull(nulls, JSON_PROPERTY_STATE_OR_PROVINCE, this.stateOrProvince);
+    }
+    if (isSetStreet) {
+      addIfNull(nulls, JSON_PROPERTY_STREET, this.street);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of BulkAddress given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CALocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/CALocalAccountIdentification.java
index 9f3813481..cb87bd6ce 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CALocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CALocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,6 +35,9 @@ public class CALocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /**
    * The bank account type. Possible values: **checking** or **savings**. Defaults to **checking**.
    */
@@ -79,12 +84,21 @@ public static AccountTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_ACCOUNT_TYPE = "accountType";
   private AccountTypeEnum accountType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountType = false;
+
   public static final String JSON_PROPERTY_INSTITUTION_NUMBER = "institutionNumber";
   private String institutionNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInstitutionNumber = false;
+
   public static final String JSON_PROPERTY_TRANSIT_NUMBER = "transitNumber";
   private String transitNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransitNumber = false;
+
   /** **caLocal** */
   public enum TypeEnum {
     CALOCAL(String.valueOf("caLocal"));
@@ -127,6 +141,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CALocalAccountIdentification() {}
 
   /**
@@ -137,6 +160,7 @@ public CALocalAccountIdentification() {}
    */
   public CALocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -160,6 +184,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -171,6 +196,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public CALocalAccountIdentification accountType(AccountTypeEnum accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
     return this;
   }
 
@@ -196,6 +222,7 @@ public AccountTypeEnum getAccountType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountType(AccountTypeEnum accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
   }
 
   /**
@@ -206,6 +233,7 @@ public void setAccountType(AccountTypeEnum accountType) {
    */
   public CALocalAccountIdentification institutionNumber(String institutionNumber) {
     this.institutionNumber = institutionNumber;
+    isSetInstitutionNumber = true; // mark as set
     return this;
   }
 
@@ -229,6 +257,7 @@ public String getInstitutionNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInstitutionNumber(String institutionNumber) {
     this.institutionNumber = institutionNumber;
+    isSetInstitutionNumber = true; // mark as set
   }
 
   /**
@@ -239,6 +268,7 @@ public void setInstitutionNumber(String institutionNumber) {
    */
   public CALocalAccountIdentification transitNumber(String transitNumber) {
     this.transitNumber = transitNumber;
+    isSetTransitNumber = true; // mark as set
     return this;
   }
 
@@ -262,6 +292,7 @@ public String getTransitNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransitNumber(String transitNumber) {
     this.transitNumber = transitNumber;
+    isSetTransitNumber = true; // mark as set
   }
 
   /**
@@ -272,6 +303,7 @@ public void setTransitNumber(String transitNumber) {
    */
   public CALocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -295,6 +327,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CALocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CALocalAccountIdentification object is equal to o. */
@@ -342,6 +395,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetAccountType) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_TYPE, this.accountType);
+    }
+    if (isSetInstitutionNumber) {
+      addIfNull(nulls, JSON_PROPERTY_INSTITUTION_NUMBER, this.institutionNumber);
+    }
+    if (isSetTransitNumber) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSIT_NUMBER, this.transitNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CALocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CZLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/CZLocalAccountIdentification.java
index ede24669a..19128febd 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CZLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CZLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class CZLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_BANK_CODE = "bankCode";
   private String bankCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankCode = false;
+
   /** **czLocal** */
   public enum TypeEnum {
     CZLOCAL(String.valueOf("czLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CZLocalAccountIdentification() {}
 
   /**
@@ -94,6 +111,7 @@ public CZLocalAccountIdentification() {}
    */
   public CZLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -133,6 +151,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -143,6 +162,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public CZLocalAccountIdentification bankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
     return this;
   }
 
@@ -166,6 +186,7 @@ public String getBankCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
   }
 
   /**
@@ -176,6 +197,7 @@ public void setBankCode(String bankCode) {
    */
   public CZLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -199,6 +221,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CZLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CZLocalAccountIdentification object is equal to o. */
@@ -242,6 +285,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetBankCode) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_CODE, this.bankCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CZLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblem.java b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblem.java
index e2ad5d9a4..53a2137d8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblem.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblem.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class CapabilityProblem {
   public static final String JSON_PROPERTY_ENTITY = "entity";
   private CapabilityProblemEntity entity;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntity = false;
+
   public static final String JSON_PROPERTY_VERIFICATION_ERRORS = "verificationErrors";
   private List<VerificationError> verificationErrors;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVerificationErrors = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapabilityProblem() {}
 
   /**
@@ -41,6 +55,7 @@ public CapabilityProblem() {}
    */
   public CapabilityProblem entity(CapabilityProblemEntity entity) {
     this.entity = entity;
+    isSetEntity = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public CapabilityProblemEntity getEntity() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntity(CapabilityProblemEntity entity) {
     this.entity = entity;
+    isSetEntity = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setEntity(CapabilityProblemEntity entity) {
    */
   public CapabilityProblem verificationErrors(List<VerificationError> verificationErrors) {
     this.verificationErrors = verificationErrors;
+    isSetVerificationErrors = true; // mark as set
     return this;
   }
 
@@ -105,6 +122,27 @@ public List<VerificationError> getVerificationErrors() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setVerificationErrors(List<VerificationError> verificationErrors) {
     this.verificationErrors = verificationErrors;
+    isSetVerificationErrors = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapabilityProblem includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapabilityProblem object is equal to o. */
@@ -146,6 +184,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntity) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY, this.entity);
+    }
+    if (isSetVerificationErrors) {
+      addIfNull(nulls, JSON_PROPERTY_VERIFICATION_ERRORS, this.verificationErrors);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapabilityProblem given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntity.java b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntity.java
index d57710394..5ce6ea866 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntity.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntity.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -34,12 +36,21 @@ public class CapabilityProblemEntity {
   public static final String JSON_PROPERTY_DOCUMENTS = "documents";
   private List<String> documents;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDocuments = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_OWNER = "owner";
   private CapabilityProblemEntityRecursive owner;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOwner = false;
+
   /** Type of entity. Possible values: **LegalEntity**, **BankAccount**, **Document**. */
   public enum TypeEnum {
     BANKACCOUNT(String.valueOf("BankAccount")),
@@ -86,6 +97,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapabilityProblemEntity() {}
 
   /**
@@ -98,6 +118,7 @@ public CapabilityProblemEntity() {}
    */
   public CapabilityProblemEntity documents(List<String> documents) {
     this.documents = documents;
+    isSetDocuments = true; // mark as set
     return this;
   }
 
@@ -133,6 +154,7 @@ public List<String> getDocuments() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDocuments(List<String> documents) {
     this.documents = documents;
+    isSetDocuments = true; // mark as set
   }
 
   /**
@@ -143,6 +165,7 @@ public void setDocuments(List<String> documents) {
    */
   public CapabilityProblemEntity id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -166,6 +189,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -176,6 +200,7 @@ public void setId(String id) {
    */
   public CapabilityProblemEntity owner(CapabilityProblemEntityRecursive owner) {
     this.owner = owner;
+    isSetOwner = true; // mark as set
     return this;
   }
 
@@ -199,6 +224,7 @@ public CapabilityProblemEntityRecursive getOwner() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOwner(CapabilityProblemEntityRecursive owner) {
     this.owner = owner;
+    isSetOwner = true; // mark as set
   }
 
   /**
@@ -209,6 +235,7 @@ public void setOwner(CapabilityProblemEntityRecursive owner) {
    */
   public CapabilityProblemEntity type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -232,6 +259,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapabilityProblemEntity includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapabilityProblemEntity object is equal to o. */
@@ -277,6 +325,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDocuments) {
+      addIfNull(nulls, JSON_PROPERTY_DOCUMENTS, this.documents);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetOwner) {
+      addIfNull(nulls, JSON_PROPERTY_OWNER, this.owner);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapabilityProblemEntity given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntityRecursive.java b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntityRecursive.java
index d7acf7623..57ea60729 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntityRecursive.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapabilityProblemEntityRecursive.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,9 +37,15 @@ public class CapabilityProblemEntityRecursive {
   public static final String JSON_PROPERTY_DOCUMENTS = "documents";
   private List<String> documents;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDocuments = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   /** Type of entity. Possible values: **LegalEntity**, **BankAccount**, **Document**. */
   public enum TypeEnum {
     BANKACCOUNT(String.valueOf("BankAccount")),
@@ -84,6 +92,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapabilityProblemEntityRecursive() {}
 
   /**
@@ -97,6 +114,7 @@ public CapabilityProblemEntityRecursive() {}
    */
   public CapabilityProblemEntityRecursive documents(List<String> documents) {
     this.documents = documents;
+    isSetDocuments = true; // mark as set
     return this;
   }
 
@@ -132,6 +150,7 @@ public List<String> getDocuments() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDocuments(List<String> documents) {
     this.documents = documents;
+    isSetDocuments = true; // mark as set
   }
 
   /**
@@ -143,6 +162,7 @@ public void setDocuments(List<String> documents) {
    */
   public CapabilityProblemEntityRecursive id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -166,6 +186,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -177,6 +198,7 @@ public void setId(String id) {
    */
   public CapabilityProblemEntityRecursive type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -200,6 +222,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapabilityProblemEntityRecursive includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapabilityProblemEntity-recursive object is equal to o. */
@@ -244,6 +287,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDocuments) {
+      addIfNull(nulls, JSON_PROPERTY_DOCUMENTS, this.documents);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapabilityProblemEntityRecursive given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapabilitySettings.java b/src/main/java/com/adyen/model/balanceplatform/CapabilitySettings.java
index 7d5db1da1..ad0b960f8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapabilitySettings.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapabilitySettings.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,9 +39,15 @@ public class CapabilitySettings {
   public static final String JSON_PROPERTY_AMOUNT_PER_INDUSTRY = "amountPerIndustry";
   private Map<String, Amount> amountPerIndustry;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmountPerIndustry = false;
+
   public static final String JSON_PROPERTY_AUTHORIZED_CARD_USERS = "authorizedCardUsers";
   private Boolean authorizedCardUsers;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAuthorizedCardUsers = false;
+
   /** Gets or Sets fundingSource */
   public enum FundingSourceEnum {
     CREDIT(String.valueOf("credit")),
@@ -86,6 +94,9 @@ public static FundingSourceEnum fromValue(String value) {
   public static final String JSON_PROPERTY_FUNDING_SOURCE = "fundingSource";
   private List<FundingSourceEnum> fundingSource;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFundingSource = false;
+
   /** */
   public enum IntervalEnum {
     DAILY(String.valueOf("daily")),
@@ -132,9 +143,21 @@ public static IntervalEnum fromValue(String value) {
   public static final String JSON_PROPERTY_INTERVAL = "interval";
   private IntervalEnum interval;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInterval = false;
+
   public static final String JSON_PROPERTY_MAX_AMOUNT = "maxAmount";
   private Amount maxAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMaxAmount = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapabilitySettings() {}
 
   /**
@@ -143,6 +166,7 @@ public CapabilitySettings() {}
    */
   public CapabilitySettings amountPerIndustry(Map<String, Amount> amountPerIndustry) {
     this.amountPerIndustry = amountPerIndustry;
+    isSetAmountPerIndustry = true; // mark as set
     return this;
   }
 
@@ -170,6 +194,7 @@ public Map<String, Amount> getAmountPerIndustry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmountPerIndustry(Map<String, Amount> amountPerIndustry) {
     this.amountPerIndustry = amountPerIndustry;
+    isSetAmountPerIndustry = true; // mark as set
   }
 
   /**
@@ -178,6 +203,7 @@ public void setAmountPerIndustry(Map<String, Amount> amountPerIndustry) {
    */
   public CapabilitySettings authorizedCardUsers(Boolean authorizedCardUsers) {
     this.authorizedCardUsers = authorizedCardUsers;
+    isSetAuthorizedCardUsers = true; // mark as set
     return this;
   }
 
@@ -197,6 +223,7 @@ public Boolean getAuthorizedCardUsers() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAuthorizedCardUsers(Boolean authorizedCardUsers) {
     this.authorizedCardUsers = authorizedCardUsers;
+    isSetAuthorizedCardUsers = true; // mark as set
   }
 
   /**
@@ -205,6 +232,7 @@ public void setAuthorizedCardUsers(Boolean authorizedCardUsers) {
    */
   public CapabilitySettings fundingSource(List<FundingSourceEnum> fundingSource) {
     this.fundingSource = fundingSource;
+    isSetFundingSource = true; // mark as set
     return this;
   }
 
@@ -232,6 +260,7 @@ public List<FundingSourceEnum> getFundingSource() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFundingSource(List<FundingSourceEnum> fundingSource) {
     this.fundingSource = fundingSource;
+    isSetFundingSource = true; // mark as set
   }
 
   /**
@@ -240,6 +269,7 @@ public void setFundingSource(List<FundingSourceEnum> fundingSource) {
    */
   public CapabilitySettings interval(IntervalEnum interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
     return this;
   }
 
@@ -259,6 +289,7 @@ public IntervalEnum getInterval() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInterval(IntervalEnum interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
   }
 
   /**
@@ -269,6 +300,7 @@ public void setInterval(IntervalEnum interval) {
    */
   public CapabilitySettings maxAmount(Amount maxAmount) {
     this.maxAmount = maxAmount;
+    isSetMaxAmount = true; // mark as set
     return this;
   }
 
@@ -292,6 +324,27 @@ public Amount getMaxAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMaxAmount(Amount maxAmount) {
     this.maxAmount = maxAmount;
+    isSetMaxAmount = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapabilitySettings includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapabilitySettings object is equal to o. */
@@ -341,6 +394,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmountPerIndustry) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT_PER_INDUSTRY, this.amountPerIndustry);
+    }
+    if (isSetAuthorizedCardUsers) {
+      addIfNull(nulls, JSON_PROPERTY_AUTHORIZED_CARD_USERS, this.authorizedCardUsers);
+    }
+    if (isSetFundingSource) {
+      addIfNull(nulls, JSON_PROPERTY_FUNDING_SOURCE, this.fundingSource);
+    }
+    if (isSetInterval) {
+      addIfNull(nulls, JSON_PROPERTY_INTERVAL, this.interval);
+    }
+    if (isSetMaxAmount) {
+      addIfNull(nulls, JSON_PROPERTY_MAX_AMOUNT, this.maxAmount);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapabilitySettings given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapitalBalance.java b/src/main/java/com/adyen/model/balanceplatform/CapitalBalance.java
index a506efb74..b903464f9 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapitalBalance.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapitalBalance.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,15 +30,33 @@ public class CapitalBalance {
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_FEE = "fee";
   private Long fee;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFee = false;
+
   public static final String JSON_PROPERTY_PRINCIPAL = "principal";
   private Long principal;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPrincipal = false;
+
   public static final String JSON_PROPERTY_TOTAL = "total";
   private Long total;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTotal = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapitalBalance() {}
 
   /**
@@ -49,6 +69,7 @@ public CapitalBalance() {}
    */
   public CapitalBalance currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -76,6 +97,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -86,6 +108,7 @@ public void setCurrency(String currency) {
    */
   public CapitalBalance fee(Long fee) {
     this.fee = fee;
+    isSetFee = true; // mark as set
     return this;
   }
 
@@ -109,6 +132,7 @@ public Long getFee() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFee(Long fee) {
     this.fee = fee;
+    isSetFee = true; // mark as set
   }
 
   /**
@@ -119,6 +143,7 @@ public void setFee(Long fee) {
    */
   public CapitalBalance principal(Long principal) {
     this.principal = principal;
+    isSetPrincipal = true; // mark as set
     return this;
   }
 
@@ -142,6 +167,7 @@ public Long getPrincipal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPrincipal(Long principal) {
     this.principal = principal;
+    isSetPrincipal = true; // mark as set
   }
 
   /**
@@ -152,6 +178,7 @@ public void setPrincipal(Long principal) {
    */
   public CapitalBalance total(Long total) {
     this.total = total;
+    isSetTotal = true; // mark as set
     return this;
   }
 
@@ -175,6 +202,27 @@ public Long getTotal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTotal(Long total) {
     this.total = total;
+    isSetTotal = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapitalBalance includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapitalBalance object is equal to o. */
@@ -220,6 +268,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetFee) {
+      addIfNull(nulls, JSON_PROPERTY_FEE, this.fee);
+    }
+    if (isSetPrincipal) {
+      addIfNull(nulls, JSON_PROPERTY_PRINCIPAL, this.principal);
+    }
+    if (isSetTotal) {
+      addIfNull(nulls, JSON_PROPERTY_TOTAL, this.total);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapitalBalance given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CapitalGrantAccount.java b/src/main/java/com/adyen/model/balanceplatform/CapitalGrantAccount.java
index 53c3fcdce..bceb98060 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CapitalGrantAccount.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CapitalGrantAccount.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,15 +32,33 @@ public class CapitalGrantAccount {
   public static final String JSON_PROPERTY_BALANCES = "balances";
   private List<CapitalBalance> balances;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalances = false;
+
   public static final String JSON_PROPERTY_FUNDING_BALANCE_ACCOUNT_ID = "fundingBalanceAccountId";
   private String fundingBalanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFundingBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_LIMITS = "limits";
   private List<GrantLimit> limits;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLimits = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CapitalGrantAccount() {}
 
   /**
@@ -49,6 +69,7 @@ public CapitalGrantAccount() {}
    */
   public CapitalGrantAccount balances(List<CapitalBalance> balances) {
     this.balances = balances;
+    isSetBalances = true; // mark as set
     return this;
   }
 
@@ -80,6 +101,7 @@ public List<CapitalBalance> getBalances() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalances(List<CapitalBalance> balances) {
     this.balances = balances;
+    isSetBalances = true; // mark as set
   }
 
   /**
@@ -91,6 +113,7 @@ public void setBalances(List<CapitalBalance> balances) {
    */
   public CapitalGrantAccount fundingBalanceAccountId(String fundingBalanceAccountId) {
     this.fundingBalanceAccountId = fundingBalanceAccountId;
+    isSetFundingBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -116,6 +139,7 @@ public String getFundingBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFundingBalanceAccountId(String fundingBalanceAccountId) {
     this.fundingBalanceAccountId = fundingBalanceAccountId;
+    isSetFundingBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -126,6 +150,7 @@ public void setFundingBalanceAccountId(String fundingBalanceAccountId) {
    */
   public CapitalGrantAccount id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -149,6 +174,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -159,6 +185,7 @@ public void setId(String id) {
    */
   public CapitalGrantAccount limits(List<GrantLimit> limits) {
     this.limits = limits;
+    isSetLimits = true; // mark as set
     return this;
   }
 
@@ -190,6 +217,27 @@ public List<GrantLimit> getLimits() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLimits(List<GrantLimit> limits) {
     this.limits = limits;
+    isSetLimits = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CapitalGrantAccount includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CapitalGrantAccount object is equal to o. */
@@ -237,6 +285,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalances) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCES, this.balances);
+    }
+    if (isSetFundingBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_FUNDING_BALANCE_ACCOUNT_ID, this.fundingBalanceAccountId);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetLimits) {
+      addIfNull(nulls, JSON_PROPERTY_LIMITS, this.limits);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CapitalGrantAccount given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Card.java b/src/main/java/com/adyen/model/balanceplatform/Card.java
index c80794462..4bd1d9c5f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Card.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Card.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -42,30 +44,57 @@ public class Card {
   public static final String JSON_PROPERTY_AUTHENTICATION = "authentication";
   private Authentication authentication;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAuthentication = false;
+
   public static final String JSON_PROPERTY_BIN = "bin";
   private String bin;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBin = false;
+
   public static final String JSON_PROPERTY_BRAND = "brand";
   private String brand;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrand = false;
+
   public static final String JSON_PROPERTY_BRAND_VARIANT = "brandVariant";
   private String brandVariant;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrandVariant = false;
+
   public static final String JSON_PROPERTY_CARDHOLDER_NAME = "cardholderName";
   private String cardholderName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardholderName = false;
+
   public static final String JSON_PROPERTY_CONFIGURATION = "configuration";
   private CardConfiguration configuration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConfiguration = false;
+
   public static final String JSON_PROPERTY_CVC = "cvc";
   private String cvc;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCvc = false;
+
   public static final String JSON_PROPERTY_DELIVERY_CONTACT = "deliveryContact";
   private DeliveryContact deliveryContact;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDeliveryContact = false;
+
   public static final String JSON_PROPERTY_EXPIRATION = "expiration";
   private Expiry expiration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExpiration = false;
+
   /** The form factor of the card. Possible values: **virtual**, **physical**. */
   public enum FormFactorEnum {
     PHYSICAL(String.valueOf("physical")),
@@ -112,18 +141,39 @@ public static FormFactorEnum fromValue(String value) {
   public static final String JSON_PROPERTY_FORM_FACTOR = "formFactor";
   private FormFactorEnum formFactor;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFormFactor = false;
+
   public static final String JSON_PROPERTY_LAST_FOUR = "lastFour";
   private String lastFour;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLastFour = false;
+
   public static final String JSON_PROPERTY_NUMBER = "number";
   private String number;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetNumber = false;
+
   public static final String JSON_PROPERTY_THREE_D_SECURE = "threeDSecure";
   private String threeDSecure;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetThreeDSecure = false;
+
   public static final String JSON_PROPERTY_USAGE = "usage";
   private String usage;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetUsage = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Card() {}
 
   @JsonCreator
@@ -140,6 +190,7 @@ public Card(@JsonProperty(JSON_PROPERTY_NUMBER) String number) {
    */
   public Card authentication(Authentication authentication) {
     this.authentication = authentication;
+    isSetAuthentication = true; // mark as set
     return this;
   }
 
@@ -163,6 +214,7 @@ public Authentication getAuthentication() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAuthentication(Authentication authentication) {
     this.authentication = authentication;
+    isSetAuthentication = true; // mark as set
   }
 
   /**
@@ -173,6 +225,7 @@ public void setAuthentication(Authentication authentication) {
    */
   public Card bin(String bin) {
     this.bin = bin;
+    isSetBin = true; // mark as set
     return this;
   }
 
@@ -196,6 +249,7 @@ public String getBin() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBin(String bin) {
     this.bin = bin;
+    isSetBin = true; // mark as set
   }
 
   /**
@@ -206,6 +260,7 @@ public void setBin(String bin) {
    */
   public Card brand(String brand) {
     this.brand = brand;
+    isSetBrand = true; // mark as set
     return this;
   }
 
@@ -229,6 +284,7 @@ public String getBrand() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrand(String brand) {
     this.brand = brand;
+    isSetBrand = true; // mark as set
   }
 
   /**
@@ -243,6 +299,7 @@ public void setBrand(String brand) {
    */
   public Card brandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
     return this;
   }
 
@@ -274,6 +331,7 @@ public String getBrandVariant() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
   }
 
   /**
@@ -284,6 +342,7 @@ public void setBrandVariant(String brandVariant) {
    */
   public Card cardholderName(String cardholderName) {
     this.cardholderName = cardholderName;
+    isSetCardholderName = true; // mark as set
     return this;
   }
 
@@ -307,6 +366,7 @@ public String getCardholderName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardholderName(String cardholderName) {
     this.cardholderName = cardholderName;
+    isSetCardholderName = true; // mark as set
   }
 
   /**
@@ -317,6 +377,7 @@ public void setCardholderName(String cardholderName) {
    */
   public Card configuration(CardConfiguration configuration) {
     this.configuration = configuration;
+    isSetConfiguration = true; // mark as set
     return this;
   }
 
@@ -340,6 +401,7 @@ public CardConfiguration getConfiguration() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConfiguration(CardConfiguration configuration) {
     this.configuration = configuration;
+    isSetConfiguration = true; // mark as set
   }
 
   /**
@@ -352,6 +414,7 @@ public void setConfiguration(CardConfiguration configuration) {
    */
   public Card cvc(String cvc) {
     this.cvc = cvc;
+    isSetCvc = true; // mark as set
     return this;
   }
 
@@ -379,6 +442,7 @@ public String getCvc() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCvc(String cvc) {
     this.cvc = cvc;
+    isSetCvc = true; // mark as set
   }
 
   /**
@@ -389,6 +453,7 @@ public void setCvc(String cvc) {
    */
   public Card deliveryContact(DeliveryContact deliveryContact) {
     this.deliveryContact = deliveryContact;
+    isSetDeliveryContact = true; // mark as set
     return this;
   }
 
@@ -412,6 +477,7 @@ public DeliveryContact getDeliveryContact() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDeliveryContact(DeliveryContact deliveryContact) {
     this.deliveryContact = deliveryContact;
+    isSetDeliveryContact = true; // mark as set
   }
 
   /**
@@ -422,6 +488,7 @@ public void setDeliveryContact(DeliveryContact deliveryContact) {
    */
   public Card expiration(Expiry expiration) {
     this.expiration = expiration;
+    isSetExpiration = true; // mark as set
     return this;
   }
 
@@ -445,6 +512,7 @@ public Expiry getExpiration() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setExpiration(Expiry expiration) {
     this.expiration = expiration;
+    isSetExpiration = true; // mark as set
   }
 
   /**
@@ -455,6 +523,7 @@ public void setExpiration(Expiry expiration) {
    */
   public Card formFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
     return this;
   }
 
@@ -478,6 +547,7 @@ public FormFactorEnum getFormFactor() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFormFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
   }
 
   /**
@@ -488,6 +558,7 @@ public void setFormFactor(FormFactorEnum formFactor) {
    */
   public Card lastFour(String lastFour) {
     this.lastFour = lastFour;
+    isSetLastFour = true; // mark as set
     return this;
   }
 
@@ -511,6 +582,7 @@ public String getLastFour() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLastFour(String lastFour) {
     this.lastFour = lastFour;
+    isSetLastFour = true; // mark as set
   }
 
   /**
@@ -538,6 +610,7 @@ public String getNumber() {
    */
   public Card threeDSecure(String threeDSecure) {
     this.threeDSecure = threeDSecure;
+    isSetThreeDSecure = true; // mark as set
     return this;
   }
 
@@ -569,6 +642,7 @@ public String getThreeDSecure() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setThreeDSecure(String threeDSecure) {
     this.threeDSecure = threeDSecure;
+    isSetThreeDSecure = true; // mark as set
   }
 
   /**
@@ -582,6 +656,7 @@ public void setThreeDSecure(String threeDSecure) {
    */
   public Card usage(String usage) {
     this.usage = usage;
+    isSetUsage = true; // mark as set
     return this;
   }
 
@@ -611,6 +686,27 @@ public String getUsage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setUsage(String usage) {
     this.usage = usage;
+    isSetUsage = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Card includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Card object is equal to o. */
@@ -690,6 +786,69 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAuthentication) {
+      addIfNull(nulls, JSON_PROPERTY_AUTHENTICATION, this.authentication);
+    }
+    if (isSetBin) {
+      addIfNull(nulls, JSON_PROPERTY_BIN, this.bin);
+    }
+    if (isSetBrand) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND, this.brand);
+    }
+    if (isSetBrandVariant) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND_VARIANT, this.brandVariant);
+    }
+    if (isSetCardholderName) {
+      addIfNull(nulls, JSON_PROPERTY_CARDHOLDER_NAME, this.cardholderName);
+    }
+    if (isSetConfiguration) {
+      addIfNull(nulls, JSON_PROPERTY_CONFIGURATION, this.configuration);
+    }
+    if (isSetCvc) {
+      addIfNull(nulls, JSON_PROPERTY_CVC, this.cvc);
+    }
+    if (isSetDeliveryContact) {
+      addIfNull(nulls, JSON_PROPERTY_DELIVERY_CONTACT, this.deliveryContact);
+    }
+    if (isSetExpiration) {
+      addIfNull(nulls, JSON_PROPERTY_EXPIRATION, this.expiration);
+    }
+    if (isSetFormFactor) {
+      addIfNull(nulls, JSON_PROPERTY_FORM_FACTOR, this.formFactor);
+    }
+    if (isSetLastFour) {
+      addIfNull(nulls, JSON_PROPERTY_LAST_FOUR, this.lastFour);
+    }
+    if (isSetNumber) {
+      addIfNull(nulls, JSON_PROPERTY_NUMBER, this.number);
+    }
+    if (isSetThreeDSecure) {
+      addIfNull(nulls, JSON_PROPERTY_THREE_D_SECURE, this.threeDSecure);
+    }
+    if (isSetUsage) {
+      addIfNull(nulls, JSON_PROPERTY_USAGE, this.usage);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Card given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CardConfiguration.java b/src/main/java/com/adyen/model/balanceplatform/CardConfiguration.java
index d448ec323..5b8b14e10 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CardConfiguration.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CardConfiguration.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -38,68 +40,117 @@ public class CardConfiguration {
   public static final String JSON_PROPERTY_ACTIVATION = "activation";
   private String activation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetActivation = false;
+
   public static final String JSON_PROPERTY_ACTIVATION_URL = "activationUrl";
   private String activationUrl;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetActivationUrl = false;
+
   public static final String JSON_PROPERTY_BULK_ADDRESS = "bulkAddress";
   private BulkAddress bulkAddress;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBulkAddress = false;
+
   public static final String JSON_PROPERTY_CARD_IMAGE_ID = "cardImageId";
   private String cardImageId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardImageId = false;
+
   public static final String JSON_PROPERTY_CARRIER = "carrier";
   private String carrier;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCarrier = false;
+
   public static final String JSON_PROPERTY_CARRIER_IMAGE_ID = "carrierImageId";
   private String carrierImageId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCarrierImageId = false;
+
   public static final String JSON_PROPERTY_CONFIGURATION_PROFILE_ID = "configurationProfileId";
   private String configurationProfileId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConfigurationProfileId = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_ENVELOPE = "envelope";
   private String envelope;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEnvelope = false;
+
   public static final String JSON_PROPERTY_INSERT = "insert";
   private String insert;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInsert = false;
+
   public static final String JSON_PROPERTY_LANGUAGE = "language";
   private String language;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLanguage = false;
+
   public static final String JSON_PROPERTY_LOGO_IMAGE_ID = "logoImageId";
   private String logoImageId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLogoImageId = false;
+
   public static final String JSON_PROPERTY_PIN_MAILER = "pinMailer";
   private String pinMailer;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPinMailer = false;
+
   public static final String JSON_PROPERTY_SHIPMENT_METHOD = "shipmentMethod";
   private String shipmentMethod;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetShipmentMethod = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CardConfiguration() {}
 
   /**
-   * Overrides the activation label design ID defined in the &#x60;configurationProfileId&#x60;. The
-   * activation label is attached to the card and contains the activation instructions.
+   * The activation label attached to the card that contains the activation instructions. This field
+   * overrides the activation label design ID defined in the card configuration profile.
    *
-   * @param activation Overrides the activation label design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The activation label is attached to the card and
-   *     contains the activation instructions.
+   * @param activation The activation label attached to the card that contains the activation
+   *     instructions. This field overrides the activation label design ID defined in the card
+   *     configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration activation(String activation) {
     this.activation = activation;
+    isSetActivation = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the activation label design ID defined in the &#x60;configurationProfileId&#x60;. The
-   * activation label is attached to the card and contains the activation instructions.
+   * The activation label attached to the card that contains the activation instructions. This field
+   * overrides the activation label design ID defined in the card configuration profile.
    *
-   * @return activation Overrides the activation label design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The activation label is attached to the card and
-   *     contains the activation instructions.
+   * @return activation The activation label attached to the card that contains the activation
+   *     instructions. This field overrides the activation label design ID defined in the card
+   *     configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_ACTIVATION)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -108,17 +159,18 @@ public String getActivation() {
   }
 
   /**
-   * Overrides the activation label design ID defined in the &#x60;configurationProfileId&#x60;. The
-   * activation label is attached to the card and contains the activation instructions.
+   * The activation label attached to the card that contains the activation instructions. This field
+   * overrides the activation label design ID defined in the card configuration profile.
    *
-   * @param activation Overrides the activation label design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The activation label is attached to the card and
-   *     contains the activation instructions.
+   * @param activation The activation label attached to the card that contains the activation
+   *     instructions. This field overrides the activation label design ID defined in the card
+   *     configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_ACTIVATION)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setActivation(String activation) {
     this.activation = activation;
+    isSetActivation = true; // mark as set
   }
 
   /**
@@ -135,6 +187,7 @@ public void setActivation(String activation) {
    */
   public CardConfiguration activationUrl(String activationUrl) {
     this.activationUrl = activationUrl;
+    isSetActivationUrl = true; // mark as set
     return this;
   }
 
@@ -170,6 +223,7 @@ public String getActivationUrl() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setActivationUrl(String activationUrl) {
     this.activationUrl = activationUrl;
+    isSetActivationUrl = true; // mark as set
   }
 
   /**
@@ -180,6 +234,7 @@ public void setActivationUrl(String activationUrl) {
    */
   public CardConfiguration bulkAddress(BulkAddress bulkAddress) {
     this.bulkAddress = bulkAddress;
+    isSetBulkAddress = true; // mark as set
     return this;
   }
 
@@ -203,25 +258,27 @@ public BulkAddress getBulkAddress() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBulkAddress(BulkAddress bulkAddress) {
     this.bulkAddress = bulkAddress;
+    isSetBulkAddress = true; // mark as set
   }
 
   /**
-   * The ID of the card image. This is the image that will be printed on the full front of the card.
+   * The unique identifier of the card image. This image is printed on the full front of the card.
    *
-   * @param cardImageId The ID of the card image. This is the image that will be printed on the full
+   * @param cardImageId The unique identifier of the card image. This image is printed on the full
    *     front of the card.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration cardImageId(String cardImageId) {
     this.cardImageId = cardImageId;
+    isSetCardImageId = true; // mark as set
     return this;
   }
 
   /**
-   * The ID of the card image. This is the image that will be printed on the full front of the card.
+   * The unique identifier of the card image. This image is printed on the full front of the card.
    *
-   * @return cardImageId The ID of the card image. This is the image that will be printed on the
-   *     full front of the card.
+   * @return cardImageId The unique identifier of the card image. This image is printed on the full
+   *     front of the card.
    */
   @JsonProperty(JSON_PROPERTY_CARD_IMAGE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -230,38 +287,38 @@ public String getCardImageId() {
   }
 
   /**
-   * The ID of the card image. This is the image that will be printed on the full front of the card.
+   * The unique identifier of the card image. This image is printed on the full front of the card.
    *
-   * @param cardImageId The ID of the card image. This is the image that will be printed on the full
+   * @param cardImageId The unique identifier of the card image. This image is printed on the full
    *     front of the card.
    */
   @JsonProperty(JSON_PROPERTY_CARD_IMAGE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardImageId(String cardImageId) {
     this.cardImageId = cardImageId;
+    isSetCardImageId = true; // mark as set
   }
 
   /**
-   * Overrides the carrier design ID defined in the &#x60;configurationProfileId&#x60;. The carrier
-   * is the letter or packaging to which the card is attached.
+   * The letter or packaging to which the card is attached. This field overrides the carrier design
+   * ID defined in the card configuration profile.
    *
-   * @param carrier Overrides the carrier design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The carrier is the letter or packaging to which the
-   *     card is attached.
+   * @param carrier The letter or packaging to which the card is attached. This field overrides the
+   *     carrier design ID defined in the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration carrier(String carrier) {
     this.carrier = carrier;
+    isSetCarrier = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the carrier design ID defined in the &#x60;configurationProfileId&#x60;. The carrier
-   * is the letter or packaging to which the card is attached.
+   * The letter or packaging to which the card is attached. This field overrides the carrier design
+   * ID defined in the card configuration profile.
    *
-   * @return carrier Overrides the carrier design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The carrier is the letter or packaging to which the
-   *     card is attached.
+   * @return carrier The letter or packaging to which the card is attached. This field overrides the
+   *     carrier design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CARRIER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -270,37 +327,38 @@ public String getCarrier() {
   }
 
   /**
-   * Overrides the carrier design ID defined in the &#x60;configurationProfileId&#x60;. The carrier
-   * is the letter or packaging to which the card is attached.
+   * The letter or packaging to which the card is attached. This field overrides the carrier design
+   * ID defined in the card configuration profile.
    *
-   * @param carrier Overrides the carrier design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The carrier is the letter or packaging to which the
-   *     card is attached.
+   * @param carrier The letter or packaging to which the card is attached. This field overrides the
+   *     carrier design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CARRIER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCarrier(String carrier) {
     this.carrier = carrier;
+    isSetCarrier = true; // mark as set
   }
 
   /**
-   * The ID of the carrier image. This is the image that will printed on the letter to which the
+   * The unique identifier of the carrier image. This image is printed on the letter to which the
    * card is attached.
    *
-   * @param carrierImageId The ID of the carrier image. This is the image that will printed on the
+   * @param carrierImageId The unique identifier of the carrier image. This image is printed on the
    *     letter to which the card is attached.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration carrierImageId(String carrierImageId) {
     this.carrierImageId = carrierImageId;
+    isSetCarrierImageId = true; // mark as set
     return this;
   }
 
   /**
-   * The ID of the carrier image. This is the image that will printed on the letter to which the
+   * The unique identifier of the carrier image. This image is printed on the letter to which the
    * card is attached.
    *
-   * @return carrierImageId The ID of the carrier image. This is the image that will printed on the
+   * @return carrierImageId The unique identifier of the carrier image. This image is printed on the
    *     letter to which the card is attached.
    */
   @JsonProperty(JSON_PROPERTY_CARRIER_IMAGE_ID)
@@ -310,51 +368,55 @@ public String getCarrierImageId() {
   }
 
   /**
-   * The ID of the carrier image. This is the image that will printed on the letter to which the
+   * The unique identifier of the carrier image. This image is printed on the letter to which the
    * card is attached.
    *
-   * @param carrierImageId The ID of the carrier image. This is the image that will printed on the
+   * @param carrierImageId The unique identifier of the carrier image. This image is printed on the
    *     letter to which the card is attached.
    */
   @JsonProperty(JSON_PROPERTY_CARRIER_IMAGE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCarrierImageId(String carrierImageId) {
     this.carrierImageId = carrierImageId;
+    isSetCarrierImageId = true; // mark as set
   }
 
   /**
-   * The ID of the card configuration profile that contains the settings of the card. For example,
-   * the envelope and PIN mailer designs or the logistics company handling the shipment. All the
-   * settings in the profile are applied to the card, unless you provide other fields to override
-   * them. For example, send the &#x60;shipmentMethod&#x60; to override the logistics company
-   * defined in the card configuration profile.
+   * The unique identifier of the card configuration profile that contains the settings that are
+   * applied to the card. For example, the envelope and PIN mailer designs or the logistics company
+   * handling the shipment. You can override some of the existing settings in the configuration
+   * profile by providing the corresponding fields in the &#x60;configuration&#x60; object. For
+   * example, send the &#x60;shipmentMethod&#x60; to override the logistics company defined in the
+   * card configuration profile.
    *
-   * @param configurationProfileId The ID of the card configuration profile that contains the
-   *     settings of the card. For example, the envelope and PIN mailer designs or the logistics
-   *     company handling the shipment. All the settings in the profile are applied to the card,
-   *     unless you provide other fields to override them. For example, send the
-   *     &#x60;shipmentMethod&#x60; to override the logistics company defined in the card
-   *     configuration profile.
+   * @param configurationProfileId The unique identifier of the card configuration profile that
+   *     contains the settings that are applied to the card. For example, the envelope and PIN
+   *     mailer designs or the logistics company handling the shipment. You can override some of the
+   *     existing settings in the configuration profile by providing the corresponding fields in the
+   *     &#x60;configuration&#x60; object. For example, send the &#x60;shipmentMethod&#x60; to
+   *     override the logistics company defined in the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration configurationProfileId(String configurationProfileId) {
     this.configurationProfileId = configurationProfileId;
+    isSetConfigurationProfileId = true; // mark as set
     return this;
   }
 
   /**
-   * The ID of the card configuration profile that contains the settings of the card. For example,
-   * the envelope and PIN mailer designs or the logistics company handling the shipment. All the
-   * settings in the profile are applied to the card, unless you provide other fields to override
-   * them. For example, send the &#x60;shipmentMethod&#x60; to override the logistics company
-   * defined in the card configuration profile.
+   * The unique identifier of the card configuration profile that contains the settings that are
+   * applied to the card. For example, the envelope and PIN mailer designs or the logistics company
+   * handling the shipment. You can override some of the existing settings in the configuration
+   * profile by providing the corresponding fields in the &#x60;configuration&#x60; object. For
+   * example, send the &#x60;shipmentMethod&#x60; to override the logistics company defined in the
+   * card configuration profile.
    *
-   * @return configurationProfileId The ID of the card configuration profile that contains the
-   *     settings of the card. For example, the envelope and PIN mailer designs or the logistics
-   *     company handling the shipment. All the settings in the profile are applied to the card,
-   *     unless you provide other fields to override them. For example, send the
-   *     &#x60;shipmentMethod&#x60; to override the logistics company defined in the card
-   *     configuration profile.
+   * @return configurationProfileId The unique identifier of the card configuration profile that
+   *     contains the settings that are applied to the card. For example, the envelope and PIN
+   *     mailer designs or the logistics company handling the shipment. You can override some of the
+   *     existing settings in the configuration profile by providing the corresponding fields in the
+   *     &#x60;configuration&#x60; object. For example, send the &#x60;shipmentMethod&#x60; to
+   *     override the logistics company defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CONFIGURATION_PROFILE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -363,44 +425,51 @@ public String getConfigurationProfileId() {
   }
 
   /**
-   * The ID of the card configuration profile that contains the settings of the card. For example,
-   * the envelope and PIN mailer designs or the logistics company handling the shipment. All the
-   * settings in the profile are applied to the card, unless you provide other fields to override
-   * them. For example, send the &#x60;shipmentMethod&#x60; to override the logistics company
-   * defined in the card configuration profile.
+   * The unique identifier of the card configuration profile that contains the settings that are
+   * applied to the card. For example, the envelope and PIN mailer designs or the logistics company
+   * handling the shipment. You can override some of the existing settings in the configuration
+   * profile by providing the corresponding fields in the &#x60;configuration&#x60; object. For
+   * example, send the &#x60;shipmentMethod&#x60; to override the logistics company defined in the
+   * card configuration profile.
    *
-   * @param configurationProfileId The ID of the card configuration profile that contains the
-   *     settings of the card. For example, the envelope and PIN mailer designs or the logistics
-   *     company handling the shipment. All the settings in the profile are applied to the card,
-   *     unless you provide other fields to override them. For example, send the
-   *     &#x60;shipmentMethod&#x60; to override the logistics company defined in the card
-   *     configuration profile.
+   * @param configurationProfileId The unique identifier of the card configuration profile that
+   *     contains the settings that are applied to the card. For example, the envelope and PIN
+   *     mailer designs or the logistics company handling the shipment. You can override some of the
+   *     existing settings in the configuration profile by providing the corresponding fields in the
+   *     &#x60;configuration&#x60; object. For example, send the &#x60;shipmentMethod&#x60; to
+   *     override the logistics company defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CONFIGURATION_PROFILE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConfigurationProfileId(String configurationProfileId) {
     this.configurationProfileId = configurationProfileId;
+    isSetConfigurationProfileId = true; // mark as set
   }
 
   /**
    * The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency code of the card.
-   * For example, **EUR**.
+   * For example, **EUR**. This field overrides the existing currency setting on the card
+   * configuration profile.
    *
    * @param currency The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency
-   *     code of the card. For example, **EUR**.
+   *     code of the card. For example, **EUR**. This field overrides the existing currency setting
+   *     on the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
   /**
    * The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency code of the card.
-   * For example, **EUR**.
+   * For example, **EUR**. This field overrides the existing currency setting on the card
+   * configuration profile.
    *
    * @return currency The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency
-   *     code of the card. For example, **EUR**.
+   *     code of the card. For example, **EUR**. This field overrides the existing currency setting
+   *     on the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CURRENCY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -410,34 +479,36 @@ public String getCurrency() {
 
   /**
    * The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency code of the card.
-   * For example, **EUR**.
+   * For example, **EUR**. This field overrides the existing currency setting on the card
+   * configuration profile.
    *
    * @param currency The three-letter [ISO-4217](https://en.wikipedia.org/wiki/ISO_4217) currency
-   *     code of the card. For example, **EUR**.
+   *     code of the card. For example, **EUR**. This field overrides the existing currency setting
+   *     on the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_CURRENCY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
-   * Overrides the envelope design ID defined in the &#x60;configurationProfileId&#x60;.
+   * Overrides the envelope design ID defined in the card configuration profile.
    *
-   * @param envelope Overrides the envelope design ID defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @param envelope Overrides the envelope design ID defined in the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration envelope(String envelope) {
     this.envelope = envelope;
+    isSetEnvelope = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the envelope design ID defined in the &#x60;configurationProfileId&#x60;.
+   * Overrides the envelope design ID defined in the card configuration profile.
    *
-   * @return envelope Overrides the envelope design ID defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @return envelope Overrides the envelope design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_ENVELOPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -446,38 +517,39 @@ public String getEnvelope() {
   }
 
   /**
-   * Overrides the envelope design ID defined in the &#x60;configurationProfileId&#x60;.
+   * Overrides the envelope design ID defined in the card configuration profile.
    *
-   * @param envelope Overrides the envelope design ID defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @param envelope Overrides the envelope design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_ENVELOPE)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEnvelope(String envelope) {
     this.envelope = envelope;
+    isSetEnvelope = true; // mark as set
   }
 
   /**
-   * Overrides the insert design ID defined in the &#x60;configurationProfileId&#x60;. An insert is
-   * any additional material, such as marketing materials, that are shipped together with the card.
+   * Any additional material, such as marketing material, that is shipped together with the card.
+   * This field overrides the insert design ID defined in the card configuration profile.
    *
-   * @param insert Overrides the insert design ID defined in the &#x60;configurationProfileId&#x60;.
-   *     An insert is any additional material, such as marketing materials, that are shipped
-   *     together with the card.
+   * @param insert Any additional material, such as marketing material, that is shipped together
+   *     with the card. This field overrides the insert design ID defined in the card configuration
+   *     profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration insert(String insert) {
     this.insert = insert;
+    isSetInsert = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the insert design ID defined in the &#x60;configurationProfileId&#x60;. An insert is
-   * any additional material, such as marketing materials, that are shipped together with the card.
+   * Any additional material, such as marketing material, that is shipped together with the card.
+   * This field overrides the insert design ID defined in the card configuration profile.
    *
-   * @return insert Overrides the insert design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. An insert is any additional material, such as marketing
-   *     materials, that are shipped together with the card.
+   * @return insert Any additional material, such as marketing material, that is shipped together
+   *     with the card. This field overrides the insert design ID defined in the card configuration
+   *     profile.
    */
   @JsonProperty(JSON_PROPERTY_INSERT)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -486,17 +558,18 @@ public String getInsert() {
   }
 
   /**
-   * Overrides the insert design ID defined in the &#x60;configurationProfileId&#x60;. An insert is
-   * any additional material, such as marketing materials, that are shipped together with the card.
+   * Any additional material, such as marketing material, that is shipped together with the card.
+   * This field overrides the insert design ID defined in the card configuration profile.
    *
-   * @param insert Overrides the insert design ID defined in the &#x60;configurationProfileId&#x60;.
-   *     An insert is any additional material, such as marketing materials, that are shipped
-   *     together with the card.
+   * @param insert Any additional material, such as marketing material, that is shipped together
+   *     with the card. This field overrides the insert design ID defined in the card configuration
+   *     profile.
    */
   @JsonProperty(JSON_PROPERTY_INSERT)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInsert(String insert) {
     this.insert = insert;
+    isSetInsert = true; // mark as set
   }
 
   /**
@@ -510,6 +583,7 @@ public void setInsert(String insert) {
    */
   public CardConfiguration language(String language) {
     this.language = language;
+    isSetLanguage = true; // mark as set
     return this;
   }
 
@@ -539,27 +613,29 @@ public String getLanguage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLanguage(String language) {
     this.language = language;
+    isSetLanguage = true; // mark as set
   }
 
   /**
-   * The ID of the logo image. This is the image that will be printed on the partial front of the
-   * card, such as a logo on the upper right corner.
+   * The unique identifier of the logo image. This image is printed on the partial front of the
+   * card, for example, a logo on the upper right corner.
    *
-   * @param logoImageId The ID of the logo image. This is the image that will be printed on the
-   *     partial front of the card, such as a logo on the upper right corner.
+   * @param logoImageId The unique identifier of the logo image. This image is printed on the
+   *     partial front of the card, for example, a logo on the upper right corner.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration logoImageId(String logoImageId) {
     this.logoImageId = logoImageId;
+    isSetLogoImageId = true; // mark as set
     return this;
   }
 
   /**
-   * The ID of the logo image. This is the image that will be printed on the partial front of the
-   * card, such as a logo on the upper right corner.
+   * The unique identifier of the logo image. This image is printed on the partial front of the
+   * card, for example, a logo on the upper right corner.
    *
-   * @return logoImageId The ID of the logo image. This is the image that will be printed on the
-   *     partial front of the card, such as a logo on the upper right corner.
+   * @return logoImageId The unique identifier of the logo image. This image is printed on the
+   *     partial front of the card, for example, a logo on the upper right corner.
    */
   @JsonProperty(JSON_PROPERTY_LOGO_IMAGE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -568,39 +644,39 @@ public String getLogoImageId() {
   }
 
   /**
-   * The ID of the logo image. This is the image that will be printed on the partial front of the
-   * card, such as a logo on the upper right corner.
+   * The unique identifier of the logo image. This image is printed on the partial front of the
+   * card, for example, a logo on the upper right corner.
    *
-   * @param logoImageId The ID of the logo image. This is the image that will be printed on the
-   *     partial front of the card, such as a logo on the upper right corner.
+   * @param logoImageId The unique identifier of the logo image. This image is printed on the
+   *     partial front of the card, for example, a logo on the upper right corner.
    */
   @JsonProperty(JSON_PROPERTY_LOGO_IMAGE_ID)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLogoImageId(String logoImageId) {
     this.logoImageId = logoImageId;
+    isSetLogoImageId = true; // mark as set
   }
 
   /**
-   * Overrides the PIN mailer design ID defined in the &#x60;configurationProfileId&#x60;. The PIN
-   * mailer is the letter on which the PIN is printed.
+   * The letter on which the PIN of the card is printed. This field overrides the PIN mailer design
+   * ID defined in the card configuration profile.
    *
-   * @param pinMailer Overrides the PIN mailer design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The PIN mailer is the letter on which the PIN is
-   *     printed.
+   * @param pinMailer The letter on which the PIN of the card is printed. This field overrides the
+   *     PIN mailer design ID defined in the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration pinMailer(String pinMailer) {
     this.pinMailer = pinMailer;
+    isSetPinMailer = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the PIN mailer design ID defined in the &#x60;configurationProfileId&#x60;. The PIN
-   * mailer is the letter on which the PIN is printed.
+   * The letter on which the PIN of the card is printed. This field overrides the PIN mailer design
+   * ID defined in the card configuration profile.
    *
-   * @return pinMailer Overrides the PIN mailer design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The PIN mailer is the letter on which the PIN is
-   *     printed.
+   * @return pinMailer The letter on which the PIN of the card is printed. This field overrides the
+   *     PIN mailer design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_PIN_MAILER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -609,36 +685,39 @@ public String getPinMailer() {
   }
 
   /**
-   * Overrides the PIN mailer design ID defined in the &#x60;configurationProfileId&#x60;. The PIN
-   * mailer is the letter on which the PIN is printed.
+   * The letter on which the PIN of the card is printed. This field overrides the PIN mailer design
+   * ID defined in the card configuration profile.
    *
-   * @param pinMailer Overrides the PIN mailer design ID defined in the
-   *     &#x60;configurationProfileId&#x60;. The PIN mailer is the letter on which the PIN is
-   *     printed.
+   * @param pinMailer The letter on which the PIN of the card is printed. This field overrides the
+   *     PIN mailer design ID defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_PIN_MAILER)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPinMailer(String pinMailer) {
     this.pinMailer = pinMailer;
+    isSetPinMailer = true; // mark as set
   }
 
   /**
-   * Overrides the logistics company defined in the &#x60;configurationProfileId&#x60;.
+   * The logistics company that ships the card. This field overrides the logistics company defined
+   * in the card configuration profile.
    *
-   * @param shipmentMethod Overrides the logistics company defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @param shipmentMethod The logistics company that ships the card. This field overrides the
+   *     logistics company defined in the card configuration profile.
    * @return the current {@code CardConfiguration} instance, allowing for method chaining
    */
   public CardConfiguration shipmentMethod(String shipmentMethod) {
     this.shipmentMethod = shipmentMethod;
+    isSetShipmentMethod = true; // mark as set
     return this;
   }
 
   /**
-   * Overrides the logistics company defined in the &#x60;configurationProfileId&#x60;.
+   * The logistics company that ships the card. This field overrides the logistics company defined
+   * in the card configuration profile.
    *
-   * @return shipmentMethod Overrides the logistics company defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @return shipmentMethod The logistics company that ships the card. This field overrides the
+   *     logistics company defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_SHIPMENT_METHOD)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -647,15 +726,37 @@ public String getShipmentMethod() {
   }
 
   /**
-   * Overrides the logistics company defined in the &#x60;configurationProfileId&#x60;.
+   * The logistics company that ships the card. This field overrides the logistics company defined
+   * in the card configuration profile.
    *
-   * @param shipmentMethod Overrides the logistics company defined in the
-   *     &#x60;configurationProfileId&#x60;.
+   * @param shipmentMethod The logistics company that ships the card. This field overrides the
+   *     logistics company defined in the card configuration profile.
    */
   @JsonProperty(JSON_PROPERTY_SHIPMENT_METHOD)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setShipmentMethod(String shipmentMethod) {
     this.shipmentMethod = shipmentMethod;
+    isSetShipmentMethod = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CardConfiguration includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CardConfiguration object is equal to o. */
@@ -737,6 +838,69 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetActivation) {
+      addIfNull(nulls, JSON_PROPERTY_ACTIVATION, this.activation);
+    }
+    if (isSetActivationUrl) {
+      addIfNull(nulls, JSON_PROPERTY_ACTIVATION_URL, this.activationUrl);
+    }
+    if (isSetBulkAddress) {
+      addIfNull(nulls, JSON_PROPERTY_BULK_ADDRESS, this.bulkAddress);
+    }
+    if (isSetCardImageId) {
+      addIfNull(nulls, JSON_PROPERTY_CARD_IMAGE_ID, this.cardImageId);
+    }
+    if (isSetCarrier) {
+      addIfNull(nulls, JSON_PROPERTY_CARRIER, this.carrier);
+    }
+    if (isSetCarrierImageId) {
+      addIfNull(nulls, JSON_PROPERTY_CARRIER_IMAGE_ID, this.carrierImageId);
+    }
+    if (isSetConfigurationProfileId) {
+      addIfNull(nulls, JSON_PROPERTY_CONFIGURATION_PROFILE_ID, this.configurationProfileId);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetEnvelope) {
+      addIfNull(nulls, JSON_PROPERTY_ENVELOPE, this.envelope);
+    }
+    if (isSetInsert) {
+      addIfNull(nulls, JSON_PROPERTY_INSERT, this.insert);
+    }
+    if (isSetLanguage) {
+      addIfNull(nulls, JSON_PROPERTY_LANGUAGE, this.language);
+    }
+    if (isSetLogoImageId) {
+      addIfNull(nulls, JSON_PROPERTY_LOGO_IMAGE_ID, this.logoImageId);
+    }
+    if (isSetPinMailer) {
+      addIfNull(nulls, JSON_PROPERTY_PIN_MAILER, this.pinMailer);
+    }
+    if (isSetShipmentMethod) {
+      addIfNull(nulls, JSON_PROPERTY_SHIPMENT_METHOD, this.shipmentMethod);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CardConfiguration given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CardInfo.java b/src/main/java/com/adyen/model/balanceplatform/CardInfo.java
index 672469bfb..1ac922acf 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CardInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CardInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,21 +39,39 @@ public class CardInfo {
   public static final String JSON_PROPERTY_AUTHENTICATION = "authentication";
   private Authentication authentication;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAuthentication = false;
+
   public static final String JSON_PROPERTY_BRAND = "brand";
   private String brand;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrand = false;
+
   public static final String JSON_PROPERTY_BRAND_VARIANT = "brandVariant";
   private String brandVariant;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrandVariant = false;
+
   public static final String JSON_PROPERTY_CARDHOLDER_NAME = "cardholderName";
   private String cardholderName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardholderName = false;
+
   public static final String JSON_PROPERTY_CONFIGURATION = "configuration";
   private CardConfiguration configuration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConfiguration = false;
+
   public static final String JSON_PROPERTY_DELIVERY_CONTACT = "deliveryContact";
   private DeliveryContact deliveryContact;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDeliveryContact = false;
+
   /** The form factor of the card. Possible values: **virtual**, **physical**. */
   public enum FormFactorEnum {
     PHYSICAL(String.valueOf("physical")),
@@ -98,12 +118,27 @@ public static FormFactorEnum fromValue(String value) {
   public static final String JSON_PROPERTY_FORM_FACTOR = "formFactor";
   private FormFactorEnum formFactor;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFormFactor = false;
+
   public static final String JSON_PROPERTY_THREE_D_SECURE = "threeDSecure";
   private String threeDSecure;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetThreeDSecure = false;
+
   public static final String JSON_PROPERTY_USAGE = "usage";
   private String usage;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetUsage = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CardInfo() {}
 
   /**
@@ -114,6 +149,7 @@ public CardInfo() {}
    */
   public CardInfo authentication(Authentication authentication) {
     this.authentication = authentication;
+    isSetAuthentication = true; // mark as set
     return this;
   }
 
@@ -137,6 +173,7 @@ public Authentication getAuthentication() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAuthentication(Authentication authentication) {
     this.authentication = authentication;
+    isSetAuthentication = true; // mark as set
   }
 
   /**
@@ -147,6 +184,7 @@ public void setAuthentication(Authentication authentication) {
    */
   public CardInfo brand(String brand) {
     this.brand = brand;
+    isSetBrand = true; // mark as set
     return this;
   }
 
@@ -170,6 +208,7 @@ public String getBrand() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrand(String brand) {
     this.brand = brand;
+    isSetBrand = true; // mark as set
   }
 
   /**
@@ -184,6 +223,7 @@ public void setBrand(String brand) {
    */
   public CardInfo brandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
     return this;
   }
 
@@ -215,6 +255,7 @@ public String getBrandVariant() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
   }
 
   /**
@@ -225,6 +266,7 @@ public void setBrandVariant(String brandVariant) {
    */
   public CardInfo cardholderName(String cardholderName) {
     this.cardholderName = cardholderName;
+    isSetCardholderName = true; // mark as set
     return this;
   }
 
@@ -248,6 +290,7 @@ public String getCardholderName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardholderName(String cardholderName) {
     this.cardholderName = cardholderName;
+    isSetCardholderName = true; // mark as set
   }
 
   /**
@@ -258,6 +301,7 @@ public void setCardholderName(String cardholderName) {
    */
   public CardInfo configuration(CardConfiguration configuration) {
     this.configuration = configuration;
+    isSetConfiguration = true; // mark as set
     return this;
   }
 
@@ -281,6 +325,7 @@ public CardConfiguration getConfiguration() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConfiguration(CardConfiguration configuration) {
     this.configuration = configuration;
+    isSetConfiguration = true; // mark as set
   }
 
   /**
@@ -291,6 +336,7 @@ public void setConfiguration(CardConfiguration configuration) {
    */
   public CardInfo deliveryContact(DeliveryContact deliveryContact) {
     this.deliveryContact = deliveryContact;
+    isSetDeliveryContact = true; // mark as set
     return this;
   }
 
@@ -314,6 +360,7 @@ public DeliveryContact getDeliveryContact() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDeliveryContact(DeliveryContact deliveryContact) {
     this.deliveryContact = deliveryContact;
+    isSetDeliveryContact = true; // mark as set
   }
 
   /**
@@ -324,6 +371,7 @@ public void setDeliveryContact(DeliveryContact deliveryContact) {
    */
   public CardInfo formFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
     return this;
   }
 
@@ -347,6 +395,7 @@ public FormFactorEnum getFormFactor() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFormFactor(FormFactorEnum formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
   }
 
   /**
@@ -361,6 +410,7 @@ public void setFormFactor(FormFactorEnum formFactor) {
    */
   public CardInfo threeDSecure(String threeDSecure) {
     this.threeDSecure = threeDSecure;
+    isSetThreeDSecure = true; // mark as set
     return this;
   }
 
@@ -392,6 +442,7 @@ public String getThreeDSecure() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setThreeDSecure(String threeDSecure) {
     this.threeDSecure = threeDSecure;
+    isSetThreeDSecure = true; // mark as set
   }
 
   /**
@@ -405,6 +456,7 @@ public void setThreeDSecure(String threeDSecure) {
    */
   public CardInfo usage(String usage) {
     this.usage = usage;
+    isSetUsage = true; // mark as set
     return this;
   }
 
@@ -434,6 +486,27 @@ public String getUsage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setUsage(String usage) {
     this.usage = usage;
+    isSetUsage = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CardInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CardInfo object is equal to o. */
@@ -498,6 +571,54 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAuthentication) {
+      addIfNull(nulls, JSON_PROPERTY_AUTHENTICATION, this.authentication);
+    }
+    if (isSetBrand) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND, this.brand);
+    }
+    if (isSetBrandVariant) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND_VARIANT, this.brandVariant);
+    }
+    if (isSetCardholderName) {
+      addIfNull(nulls, JSON_PROPERTY_CARDHOLDER_NAME, this.cardholderName);
+    }
+    if (isSetConfiguration) {
+      addIfNull(nulls, JSON_PROPERTY_CONFIGURATION, this.configuration);
+    }
+    if (isSetDeliveryContact) {
+      addIfNull(nulls, JSON_PROPERTY_DELIVERY_CONTACT, this.deliveryContact);
+    }
+    if (isSetFormFactor) {
+      addIfNull(nulls, JSON_PROPERTY_FORM_FACTOR, this.formFactor);
+    }
+    if (isSetThreeDSecure) {
+      addIfNull(nulls, JSON_PROPERTY_THREE_D_SECURE, this.threeDSecure);
+    }
+    if (isSetUsage) {
+      addIfNull(nulls, JSON_PROPERTY_USAGE, this.usage);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CardInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CardOrder.java b/src/main/java/com/adyen/model/balanceplatform/CardOrder.java
index 92fc351c6..d7d180119 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CardOrder.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CardOrder.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,25 +39,46 @@ public class CardOrder {
   public static final String JSON_PROPERTY_BEGIN_DATE = "beginDate";
   private OffsetDateTime beginDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBeginDate = false;
+
   public static final String JSON_PROPERTY_CARD_MANUFACTURING_PROFILE_ID =
       "cardManufacturingProfileId";
   private String cardManufacturingProfileId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardManufacturingProfileId = false;
+
   public static final String JSON_PROPERTY_CLOSED_DATE = "closedDate";
   private OffsetDateTime closedDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetClosedDate = false;
+
   public static final String JSON_PROPERTY_END_DATE = "endDate";
   private OffsetDateTime endDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndDate = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_LOCK_DATE = "lockDate";
   private OffsetDateTime lockDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLockDate = false;
+
   public static final String JSON_PROPERTY_SERVICE_CENTER = "serviceCenter";
   private String serviceCenter;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetServiceCenter = false;
+
   /** The status of the card order. Possible values: **Open**, **Closed**. */
   public enum StatusEnum {
     CLOSED(String.valueOf("closed")),
@@ -100,6 +123,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CardOrder() {}
 
   /**
@@ -110,6 +142,7 @@ public CardOrder() {}
    */
   public CardOrder beginDate(OffsetDateTime beginDate) {
     this.beginDate = beginDate;
+    isSetBeginDate = true; // mark as set
     return this;
   }
 
@@ -133,6 +166,7 @@ public OffsetDateTime getBeginDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBeginDate(OffsetDateTime beginDate) {
     this.beginDate = beginDate;
+    isSetBeginDate = true; // mark as set
   }
 
   /**
@@ -143,6 +177,7 @@ public void setBeginDate(OffsetDateTime beginDate) {
    */
   public CardOrder cardManufacturingProfileId(String cardManufacturingProfileId) {
     this.cardManufacturingProfileId = cardManufacturingProfileId;
+    isSetCardManufacturingProfileId = true; // mark as set
     return this;
   }
 
@@ -166,6 +201,7 @@ public String getCardManufacturingProfileId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardManufacturingProfileId(String cardManufacturingProfileId) {
     this.cardManufacturingProfileId = cardManufacturingProfileId;
+    isSetCardManufacturingProfileId = true; // mark as set
   }
 
   /**
@@ -176,6 +212,7 @@ public void setCardManufacturingProfileId(String cardManufacturingProfileId) {
    */
   public CardOrder closedDate(OffsetDateTime closedDate) {
     this.closedDate = closedDate;
+    isSetClosedDate = true; // mark as set
     return this;
   }
 
@@ -199,6 +236,7 @@ public OffsetDateTime getClosedDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setClosedDate(OffsetDateTime closedDate) {
     this.closedDate = closedDate;
+    isSetClosedDate = true; // mark as set
   }
 
   /**
@@ -213,6 +251,7 @@ public void setClosedDate(OffsetDateTime closedDate) {
    */
   public CardOrder endDate(OffsetDateTime endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
     return this;
   }
 
@@ -244,6 +283,7 @@ public OffsetDateTime getEndDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndDate(OffsetDateTime endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
   }
 
   /**
@@ -254,6 +294,7 @@ public void setEndDate(OffsetDateTime endDate) {
    */
   public CardOrder id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -277,6 +318,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -287,6 +329,7 @@ public void setId(String id) {
    */
   public CardOrder lockDate(OffsetDateTime lockDate) {
     this.lockDate = lockDate;
+    isSetLockDate = true; // mark as set
     return this;
   }
 
@@ -310,6 +353,7 @@ public OffsetDateTime getLockDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLockDate(OffsetDateTime lockDate) {
     this.lockDate = lockDate;
+    isSetLockDate = true; // mark as set
   }
 
   /**
@@ -320,6 +364,7 @@ public void setLockDate(OffsetDateTime lockDate) {
    */
   public CardOrder serviceCenter(String serviceCenter) {
     this.serviceCenter = serviceCenter;
+    isSetServiceCenter = true; // mark as set
     return this;
   }
 
@@ -343,6 +388,7 @@ public String getServiceCenter() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setServiceCenter(String serviceCenter) {
     this.serviceCenter = serviceCenter;
+    isSetServiceCenter = true; // mark as set
   }
 
   /**
@@ -353,6 +399,7 @@ public void setServiceCenter(String serviceCenter) {
    */
   public CardOrder status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -376,6 +423,27 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CardOrder includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CardOrder object is equal to o. */
@@ -439,6 +507,52 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBeginDate) {
+      addIfNull(nulls, JSON_PROPERTY_BEGIN_DATE, this.beginDate);
+    }
+    if (isSetCardManufacturingProfileId) {
+      addIfNull(
+          nulls, JSON_PROPERTY_CARD_MANUFACTURING_PROFILE_ID, this.cardManufacturingProfileId);
+    }
+    if (isSetClosedDate) {
+      addIfNull(nulls, JSON_PROPERTY_CLOSED_DATE, this.closedDate);
+    }
+    if (isSetEndDate) {
+      addIfNull(nulls, JSON_PROPERTY_END_DATE, this.endDate);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetLockDate) {
+      addIfNull(nulls, JSON_PROPERTY_LOCK_DATE, this.lockDate);
+    }
+    if (isSetServiceCenter) {
+      addIfNull(nulls, JSON_PROPERTY_SERVICE_CENTER, this.serviceCenter);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CardOrder given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CardOrderItem.java b/src/main/java/com/adyen/model/balanceplatform/CardOrderItem.java
index 94ea7a405..97e508b95 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CardOrderItem.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CardOrderItem.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -34,27 +36,57 @@ public class CardOrderItem {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_CARD = "card";
   private CardOrderItemDeliveryStatus card;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCard = false;
+
   public static final String JSON_PROPERTY_CARD_ORDER_ITEM_ID = "cardOrderItemId";
   private String cardOrderItemId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardOrderItemId = false;
+
   public static final String JSON_PROPERTY_CREATION_DATE = "creationDate";
   private OffsetDateTime creationDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCreationDate = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   public static final String JSON_PROPERTY_PIN = "pin";
   private CardOrderItemDeliveryStatus pin;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPin = false;
+
   public static final String JSON_PROPERTY_SHIPPING_METHOD = "shippingMethod";
   private String shippingMethod;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetShippingMethod = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CardOrderItem() {}
 
   @JsonCreator
@@ -71,6 +103,7 @@ public CardOrderItem(@JsonProperty(JSON_PROPERTY_ID) String id) {
    */
   public CardOrderItem balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -94,6 +127,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -104,6 +138,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public CardOrderItem card(CardOrderItemDeliveryStatus card) {
     this.card = card;
+    isSetCard = true; // mark as set
     return this;
   }
 
@@ -127,6 +162,7 @@ public CardOrderItemDeliveryStatus getCard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCard(CardOrderItemDeliveryStatus card) {
     this.card = card;
+    isSetCard = true; // mark as set
   }
 
   /**
@@ -137,6 +173,7 @@ public void setCard(CardOrderItemDeliveryStatus card) {
    */
   public CardOrderItem cardOrderItemId(String cardOrderItemId) {
     this.cardOrderItemId = cardOrderItemId;
+    isSetCardOrderItemId = true; // mark as set
     return this;
   }
 
@@ -160,6 +197,7 @@ public String getCardOrderItemId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardOrderItemId(String cardOrderItemId) {
     this.cardOrderItemId = cardOrderItemId;
+    isSetCardOrderItemId = true; // mark as set
   }
 
   /**
@@ -172,6 +210,7 @@ public void setCardOrderItemId(String cardOrderItemId) {
    */
   public CardOrderItem creationDate(OffsetDateTime creationDate) {
     this.creationDate = creationDate;
+    isSetCreationDate = true; // mark as set
     return this;
   }
 
@@ -199,6 +238,7 @@ public OffsetDateTime getCreationDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCreationDate(OffsetDateTime creationDate) {
     this.creationDate = creationDate;
+    isSetCreationDate = true; // mark as set
   }
 
   /**
@@ -221,6 +261,7 @@ public String getId() {
    */
   public CardOrderItem paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -246,6 +287,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -256,6 +298,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
    */
   public CardOrderItem pin(CardOrderItemDeliveryStatus pin) {
     this.pin = pin;
+    isSetPin = true; // mark as set
     return this;
   }
 
@@ -279,6 +322,7 @@ public CardOrderItemDeliveryStatus getPin() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPin(CardOrderItemDeliveryStatus pin) {
     this.pin = pin;
+    isSetPin = true; // mark as set
   }
 
   /**
@@ -289,6 +333,7 @@ public void setPin(CardOrderItemDeliveryStatus pin) {
    */
   public CardOrderItem shippingMethod(String shippingMethod) {
     this.shippingMethod = shippingMethod;
+    isSetShippingMethod = true; // mark as set
     return this;
   }
 
@@ -312,6 +357,27 @@ public String getShippingMethod() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setShippingMethod(String shippingMethod) {
     this.shippingMethod = shippingMethod;
+    isSetShippingMethod = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CardOrderItem includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CardOrderItem object is equal to o. */
@@ -375,6 +441,51 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetCard) {
+      addIfNull(nulls, JSON_PROPERTY_CARD, this.card);
+    }
+    if (isSetCardOrderItemId) {
+      addIfNull(nulls, JSON_PROPERTY_CARD_ORDER_ITEM_ID, this.cardOrderItemId);
+    }
+    if (isSetCreationDate) {
+      addIfNull(nulls, JSON_PROPERTY_CREATION_DATE, this.creationDate);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetPin) {
+      addIfNull(nulls, JSON_PROPERTY_PIN, this.pin);
+    }
+    if (isSetShippingMethod) {
+      addIfNull(nulls, JSON_PROPERTY_SHIPPING_METHOD, this.shippingMethod);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CardOrderItem given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CardOrderItemDeliveryStatus.java b/src/main/java/com/adyen/model/balanceplatform/CardOrderItemDeliveryStatus.java
index 325c4e3e2..b8ff2cd97 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CardOrderItemDeliveryStatus.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CardOrderItemDeliveryStatus.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,6 +33,9 @@ public class CardOrderItemDeliveryStatus {
   public static final String JSON_PROPERTY_ERROR_MESSAGE = "errorMessage";
   private String errorMessage;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetErrorMessage = false;
+
   /** The status of the PIN delivery. */
   public enum StatusEnum {
     CREATED(String.valueOf("created")),
@@ -87,9 +92,21 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TRACKING_NUMBER = "trackingNumber";
   private String trackingNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTrackingNumber = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CardOrderItemDeliveryStatus() {}
 
   /**
@@ -100,6 +117,7 @@ public CardOrderItemDeliveryStatus() {}
    */
   public CardOrderItemDeliveryStatus errorMessage(String errorMessage) {
     this.errorMessage = errorMessage;
+    isSetErrorMessage = true; // mark as set
     return this;
   }
 
@@ -123,6 +141,7 @@ public String getErrorMessage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setErrorMessage(String errorMessage) {
     this.errorMessage = errorMessage;
+    isSetErrorMessage = true; // mark as set
   }
 
   /**
@@ -133,6 +152,7 @@ public void setErrorMessage(String errorMessage) {
    */
   public CardOrderItemDeliveryStatus status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -156,6 +176,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -166,6 +187,7 @@ public void setStatus(StatusEnum status) {
    */
   public CardOrderItemDeliveryStatus trackingNumber(String trackingNumber) {
     this.trackingNumber = trackingNumber;
+    isSetTrackingNumber = true; // mark as set
     return this;
   }
 
@@ -189,6 +211,27 @@ public String getTrackingNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTrackingNumber(String trackingNumber) {
     this.trackingNumber = trackingNumber;
+    isSetTrackingNumber = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CardOrderItemDeliveryStatus includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CardOrderItemDeliveryStatus object is equal to o. */
@@ -232,6 +275,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetErrorMessage) {
+      addIfNull(nulls, JSON_PROPERTY_ERROR_MESSAGE, this.errorMessage);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTrackingNumber) {
+      addIfNull(nulls, JSON_PROPERTY_TRACKING_NUMBER, this.trackingNumber);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CardOrderItemDeliveryStatus given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Condition.java b/src/main/java/com/adyen/model/balanceplatform/Condition.java
index 413cfa8b5..2accbbad8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Condition.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Condition.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -81,6 +83,9 @@ public static BalanceTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_BALANCE_TYPE = "balanceType";
   private BalanceTypeEnum balanceType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceType = false;
+
   /**
    * Define when you want to get notified about a balance change. Possible values: *
    * **greaterThan**: the balance in the account(s) exceeds the specified &#x60;value&#x60;. *
@@ -136,9 +141,21 @@ public static ConditionTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CONDITION_TYPE = "conditionType";
   private ConditionTypeEnum conditionType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetConditionType = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Long value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Condition() {}
 
   /**
@@ -155,6 +172,7 @@ public Condition() {}
    */
   public Condition balanceType(BalanceTypeEnum balanceType) {
     this.balanceType = balanceType;
+    isSetBalanceType = true; // mark as set
     return this;
   }
 
@@ -190,6 +208,7 @@ public BalanceTypeEnum getBalanceType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceType(BalanceTypeEnum balanceType) {
     this.balanceType = balanceType;
+    isSetBalanceType = true; // mark as set
   }
 
   /**
@@ -210,6 +229,7 @@ public void setBalanceType(BalanceTypeEnum balanceType) {
    */
   public Condition conditionType(ConditionTypeEnum conditionType) {
     this.conditionType = conditionType;
+    isSetConditionType = true; // mark as set
     return this;
   }
 
@@ -253,6 +273,7 @@ public ConditionTypeEnum getConditionType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setConditionType(ConditionTypeEnum conditionType) {
     this.conditionType = conditionType;
+    isSetConditionType = true; // mark as set
   }
 
   /**
@@ -263,6 +284,7 @@ public void setConditionType(ConditionTypeEnum conditionType) {
    */
   public Condition value(Long value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -286,6 +308,27 @@ public Long getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Long value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Condition includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Condition object is equal to o. */
@@ -329,6 +372,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceType) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_TYPE, this.balanceType);
+    }
+    if (isSetConditionType) {
+      addIfNull(nulls, JSON_PROPERTY_CONDITION_TYPE, this.conditionType);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Condition given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ContactDetails.java b/src/main/java/com/adyen/model/balanceplatform/ContactDetails.java
index fcfef740d..4915dffae 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ContactDetails.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ContactDetails.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,15 +35,33 @@ public class ContactDetails {
   public static final String JSON_PROPERTY_ADDRESS = "address";
   private Address address;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAddress = false;
+
   public static final String JSON_PROPERTY_EMAIL = "email";
   private String email;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEmail = false;
+
   public static final String JSON_PROPERTY_PHONE = "phone";
   private Phone phone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhone = false;
+
   public static final String JSON_PROPERTY_WEB_ADDRESS = "webAddress";
   private String webAddress;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWebAddress = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ContactDetails() {}
 
   /**
@@ -52,6 +72,7 @@ public ContactDetails() {}
    */
   public ContactDetails address(Address address) {
     this.address = address;
+    isSetAddress = true; // mark as set
     return this;
   }
 
@@ -75,6 +96,7 @@ public Address getAddress() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAddress(Address address) {
     this.address = address;
+    isSetAddress = true; // mark as set
   }
 
   /**
@@ -85,6 +107,7 @@ public void setAddress(Address address) {
    */
   public ContactDetails email(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
     return this;
   }
 
@@ -108,6 +131,7 @@ public String getEmail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEmail(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
   }
 
   /**
@@ -118,6 +142,7 @@ public void setEmail(String email) {
    */
   public ContactDetails phone(Phone phone) {
     this.phone = phone;
+    isSetPhone = true; // mark as set
     return this;
   }
 
@@ -141,6 +166,7 @@ public Phone getPhone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhone(Phone phone) {
     this.phone = phone;
+    isSetPhone = true; // mark as set
   }
 
   /**
@@ -151,6 +177,7 @@ public void setPhone(Phone phone) {
    */
   public ContactDetails webAddress(String webAddress) {
     this.webAddress = webAddress;
+    isSetWebAddress = true; // mark as set
     return this;
   }
 
@@ -174,6 +201,27 @@ public String getWebAddress() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setWebAddress(String webAddress) {
     this.webAddress = webAddress;
+    isSetWebAddress = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ContactDetails includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ContactDetails object is equal to o. */
@@ -219,6 +267,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAddress) {
+      addIfNull(nulls, JSON_PROPERTY_ADDRESS, this.address);
+    }
+    if (isSetEmail) {
+      addIfNull(nulls, JSON_PROPERTY_EMAIL, this.email);
+    }
+    if (isSetPhone) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE, this.phone);
+    }
+    if (isSetWebAddress) {
+      addIfNull(nulls, JSON_PROPERTY_WEB_ADDRESS, this.webAddress);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ContactDetails given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Counterparty.java b/src/main/java/com/adyen/model/balanceplatform/Counterparty.java
index 9cf7780d1..6b4675d68 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Counterparty.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Counterparty.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class Counterparty {
   public static final String JSON_PROPERTY_BANK_ACCOUNT = "bankAccount";
   private BankAccount bankAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankAccount = false;
+
   public static final String JSON_PROPERTY_TRANSFER_INSTRUMENT_ID = "transferInstrumentId";
   private String transferInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferInstrumentId = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Counterparty() {}
 
   /**
@@ -39,6 +53,7 @@ public Counterparty() {}
    */
   public Counterparty bankAccount(BankAccount bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public BankAccount getBankAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankAccount(BankAccount bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setBankAccount(BankAccount bankAccount) {
    */
   public Counterparty transferInstrumentId(String transferInstrumentId) {
     this.transferInstrumentId = transferInstrumentId;
+    isSetTransferInstrumentId = true; // mark as set
     return this;
   }
 
@@ -101,6 +118,27 @@ public String getTransferInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferInstrumentId(String transferInstrumentId) {
     this.transferInstrumentId = transferInstrumentId;
+    isSetTransferInstrumentId = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Counterparty includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Counterparty object is equal to o. */
@@ -144,6 +182,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBankAccount) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_ACCOUNT, this.bankAccount);
+    }
+    if (isSetTransferInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_INSTRUMENT_ID, this.transferInstrumentId);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Counterparty given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CounterpartyBankRestriction.java b/src/main/java/com/adyen/model/balanceplatform/CounterpartyBankRestriction.java
index e42dbdcd9..6de217133 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CounterpartyBankRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CounterpartyBankRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class CounterpartyBankRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<BankIdentification> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CounterpartyBankRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public CounterpartyBankRestriction() {}
    */
   public CounterpartyBankRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public CounterpartyBankRestriction value(List<BankIdentification> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -105,6 +122,27 @@ public List<BankIdentification> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<BankIdentification> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CounterpartyBankRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CounterpartyBankRestriction object is equal to o. */
@@ -146,6 +184,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CounterpartyBankRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CounterpartyTypesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/CounterpartyTypesRestriction.java
index 19e5a61a3..3a4759d98 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CounterpartyTypesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CounterpartyTypesRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class CounterpartyTypesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     BALANCEACCOUNT(String.valueOf("balanceAccount")),
@@ -80,6 +85,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CounterpartyTypesRestriction() {}
 
   /**
@@ -90,6 +104,7 @@ public CounterpartyTypesRestriction() {}
    */
   public CounterpartyTypesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -113,6 +128,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -123,6 +139,7 @@ public void setOperation(String operation) {
    */
   public CounterpartyTypesRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -154,6 +171,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CounterpartyTypesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CounterpartyTypesRestriction object is equal to o. */
@@ -195,6 +233,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CounterpartyTypesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CountriesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/CountriesRestriction.java
index 78d780e09..05ff35460 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CountriesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CountriesRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class CountriesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<String> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CountriesRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public CountriesRestriction() {}
    */
   public CountriesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -76,6 +92,7 @@ public void setOperation(String operation) {
    */
   public CountriesRestriction value(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -111,6 +128,27 @@ public List<String> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CountriesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CountriesRestriction object is equal to o. */
@@ -152,6 +190,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CountriesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CreateScaInformation.java b/src/main/java/com/adyen/model/balanceplatform/CreateScaInformation.java
index d0aeb7744..cae976e2d 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CreateScaInformation.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CreateScaInformation.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class CreateScaInformation {
   public static final String JSON_PROPERTY_EXEMPTION = "exemption";
   private ScaExemption exemption;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExemption = false;
+
   public static final String JSON_PROPERTY_SCA_ON_APPROVAL = "scaOnApproval";
   private Boolean scaOnApproval;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaOnApproval = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CreateScaInformation() {}
 
   /**
@@ -39,6 +53,7 @@ public CreateScaInformation() {}
    */
   public CreateScaInformation exemption(ScaExemption exemption) {
     this.exemption = exemption;
+    isSetExemption = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public ScaExemption getExemption() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setExemption(ScaExemption exemption) {
     this.exemption = exemption;
+    isSetExemption = true; // mark as set
   }
 
   /**
@@ -78,6 +94,7 @@ public void setExemption(ScaExemption exemption) {
    */
   public CreateScaInformation scaOnApproval(Boolean scaOnApproval) {
     this.scaOnApproval = scaOnApproval;
+    isSetScaOnApproval = true; // mark as set
     return this;
   }
 
@@ -113,6 +130,27 @@ public Boolean getScaOnApproval() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaOnApproval(Boolean scaOnApproval) {
     this.scaOnApproval = scaOnApproval;
+    isSetScaOnApproval = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CreateScaInformation includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CreateScaInformation object is equal to o. */
@@ -154,6 +192,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetExemption) {
+      addIfNull(nulls, JSON_PROPERTY_EXEMPTION, this.exemption);
+    }
+    if (isSetScaOnApproval) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_ON_APPROVAL, this.scaOnApproval);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CreateScaInformation given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CreateSweepConfigurationV2.java b/src/main/java/com/adyen/model/balanceplatform/CreateSweepConfigurationV2.java
index 216b62e90..de6fceb5c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CreateSweepConfigurationV2.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CreateSweepConfigurationV2.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -95,15 +97,27 @@ public static CategoryEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private CategoryEnum category;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCategory = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY = "counterparty";
   private SweepCounterparty counterparty;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterparty = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** Gets or Sets priorities */
   public enum PrioritiesEnum {
     CROSSBORDER(String.valueOf("crossBorder")),
@@ -156,6 +170,9 @@ public static PrioritiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PRIORITIES = "priorities";
   private List<PrioritiesEnum> priorities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPriorities = false;
+
   /** The reason for disabling the sweep. */
   public enum ReasonEnum {
     ACCOUNTHIERARCHYNOTACTIVE(String.valueOf("accountHierarchyNotActive")),
@@ -205,6 +222,8 @@ public enum ReasonEnum {
 
     SCAFAILED(String.valueOf("scaFailed")),
 
+    SCHEMEADVICE(String.valueOf("schemeAdvice")),
+
     TRANSFERINSTRUMENTDOESNOTEXIST(String.valueOf("transferInstrumentDoesNotExist")),
 
     UNKNOWN(String.valueOf("unknown"));
@@ -247,18 +266,33 @@ public static ReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REASON = "reason";
   private ReasonEnum reason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReason = false;
+
   public static final String JSON_PROPERTY_REASON_DETAIL = "reasonDetail";
   private String reasonDetail;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReasonDetail = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY = "referenceForBeneficiary";
   private String referenceForBeneficiary;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReferenceForBeneficiary = false;
+
   public static final String JSON_PROPERTY_SCHEDULE = "schedule";
   private SweepSchedule schedule;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSchedule = false;
+
   /**
    * The status of the sweep. If not provided, by default, this is set to **active**. Possible
    * values: * **active**: the sweep is enabled and funds will be pulled in or pushed out based on
@@ -307,15 +341,27 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_SWEEP_AMOUNT = "sweepAmount";
   private Amount sweepAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSweepAmount = false;
+
   public static final String JSON_PROPERTY_TARGET_AMOUNT = "targetAmount";
   private Amount targetAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTargetAmount = false;
+
   public static final String JSON_PROPERTY_TRIGGER_AMOUNT = "triggerAmount";
   private Amount triggerAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTriggerAmount = false;
+
   /**
    * The direction of sweep, whether pushing out or pulling in funds to the balance account. If not
    * provided, by default, this is set to **push**. Possible values: * **push**: _push out funds_ to
@@ -365,6 +411,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CreateSweepConfigurationV2() {}
 
   @JsonCreator
@@ -394,6 +449,7 @@ public CreateSweepConfigurationV2(
    */
   public CreateSweepConfigurationV2 category(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
     return this;
   }
 
@@ -437,6 +493,7 @@ public CategoryEnum getCategory() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCategory(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
   }
 
   /**
@@ -447,6 +504,7 @@ public void setCategory(CategoryEnum category) {
    */
   public CreateSweepConfigurationV2 counterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
     return this;
   }
 
@@ -470,6 +528,7 @@ public SweepCounterparty getCounterparty() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
   }
 
   /**
@@ -486,6 +545,7 @@ public void setCounterparty(SweepCounterparty counterparty) {
    */
   public CreateSweepConfigurationV2 currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -521,6 +581,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -535,6 +596,7 @@ public void setCurrency(String currency) {
    */
   public CreateSweepConfigurationV2 description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -566,6 +628,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -577,14 +640,14 @@ public void setDescription(String description) {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -600,14 +663,14 @@ public void setDescription(String description) {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -617,6 +680,7 @@ public void setDescription(String description) {
    */
   public CreateSweepConfigurationV2 priorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
     return this;
   }
 
@@ -637,14 +701,14 @@ public CreateSweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesIte
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -660,14 +724,14 @@ public CreateSweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesIte
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -689,14 +753,14 @@ public List<PrioritiesEnum> getPriorities() {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -712,14 +776,14 @@ public List<PrioritiesEnum> getPriorities() {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -730,6 +794,7 @@ public List<PrioritiesEnum> getPriorities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPriorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
   }
 
   /**
@@ -762,6 +827,7 @@ public String getReasonDetail() {
    */
   public CreateSweepConfigurationV2 reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -785,6 +851,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -797,6 +864,7 @@ public void setReference(String reference) {
    */
   public CreateSweepConfigurationV2 referenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
     return this;
   }
 
@@ -824,6 +892,7 @@ public String getReferenceForBeneficiary() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReferenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
   }
 
   /**
@@ -834,6 +903,7 @@ public void setReferenceForBeneficiary(String referenceForBeneficiary) {
    */
   public CreateSweepConfigurationV2 schedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
     return this;
   }
 
@@ -857,6 +927,7 @@ public SweepSchedule getSchedule() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSchedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
   }
 
   /**
@@ -872,6 +943,7 @@ public void setSchedule(SweepSchedule schedule) {
    */
   public CreateSweepConfigurationV2 status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -905,6 +977,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -915,6 +988,7 @@ public void setStatus(StatusEnum status) {
    */
   public CreateSweepConfigurationV2 sweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
     return this;
   }
 
@@ -938,6 +1012,7 @@ public Amount getSweepAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
   }
 
   /**
@@ -948,6 +1023,7 @@ public void setSweepAmount(Amount sweepAmount) {
    */
   public CreateSweepConfigurationV2 targetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
     return this;
   }
 
@@ -971,6 +1047,7 @@ public Amount getTargetAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTargetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
   }
 
   /**
@@ -981,6 +1058,7 @@ public void setTargetAmount(Amount targetAmount) {
    */
   public CreateSweepConfigurationV2 triggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
     return this;
   }
 
@@ -1004,6 +1082,7 @@ public Amount getTriggerAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTriggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
   }
 
   /**
@@ -1020,6 +1099,7 @@ public void setTriggerAmount(Amount triggerAmount) {
    */
   public CreateSweepConfigurationV2 type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -1055,6 +1135,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CreateSweepConfigurationV2 includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CreateSweepConfigurationV2 object is equal to o. */
@@ -1140,6 +1241,72 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCategory) {
+      addIfNull(nulls, JSON_PROPERTY_CATEGORY, this.category);
+    }
+    if (isSetCounterparty) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY, this.counterparty);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetPriorities) {
+      addIfNull(nulls, JSON_PROPERTY_PRIORITIES, this.priorities);
+    }
+    if (isSetReason) {
+      addIfNull(nulls, JSON_PROPERTY_REASON, this.reason);
+    }
+    if (isSetReasonDetail) {
+      addIfNull(nulls, JSON_PROPERTY_REASON_DETAIL, this.reasonDetail);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetReferenceForBeneficiary) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY, this.referenceForBeneficiary);
+    }
+    if (isSetSchedule) {
+      addIfNull(nulls, JSON_PROPERTY_SCHEDULE, this.schedule);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetSweepAmount) {
+      addIfNull(nulls, JSON_PROPERTY_SWEEP_AMOUNT, this.sweepAmount);
+    }
+    if (isSetTargetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET_AMOUNT, this.targetAmount);
+    }
+    if (isSetTriggerAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TRIGGER_AMOUNT, this.triggerAmount);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CreateSweepConfigurationV2 given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/CreateTransferLimitRequest.java b/src/main/java/com/adyen/model/balanceplatform/CreateTransferLimitRequest.java
index daa5c4b86..186c8f61f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/CreateTransferLimitRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/CreateTransferLimitRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,24 +34,51 @@ public class CreateTransferLimitRequest {
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
   public static final String JSON_PROPERTY_ENDS_AT = "endsAt";
   private OffsetDateTime endsAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndsAt = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_SCA_INFORMATION = "scaInformation";
   private CreateScaInformation scaInformation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaInformation = false;
+
   public static final String JSON_PROPERTY_SCOPE = "scope";
   private Scope scope;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScope = false;
+
   public static final String JSON_PROPERTY_STARTS_AT = "startsAt";
   private OffsetDateTime startsAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartsAt = false;
+
   public static final String JSON_PROPERTY_TRANSFER_TYPE = "transferType";
   private TransferType transferType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public CreateTransferLimitRequest() {}
 
   /**
@@ -60,6 +89,7 @@ public CreateTransferLimitRequest() {}
    */
   public CreateTransferLimitRequest amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -83,6 +113,7 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
   }
 
   /**
@@ -97,6 +128,7 @@ public void setAmount(Amount amount) {
    */
   public CreateTransferLimitRequest endsAt(OffsetDateTime endsAt) {
     this.endsAt = endsAt;
+    isSetEndsAt = true; // mark as set
     return this;
   }
 
@@ -128,6 +160,7 @@ public OffsetDateTime getEndsAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndsAt(OffsetDateTime endsAt) {
     this.endsAt = endsAt;
+    isSetEndsAt = true; // mark as set
   }
 
   /**
@@ -138,6 +171,7 @@ public void setEndsAt(OffsetDateTime endsAt) {
    */
   public CreateTransferLimitRequest reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -161,6 +195,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -171,6 +206,7 @@ public void setReference(String reference) {
    */
   public CreateTransferLimitRequest scaInformation(CreateScaInformation scaInformation) {
     this.scaInformation = scaInformation;
+    isSetScaInformation = true; // mark as set
     return this;
   }
 
@@ -194,6 +230,7 @@ public CreateScaInformation getScaInformation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaInformation(CreateScaInformation scaInformation) {
     this.scaInformation = scaInformation;
+    isSetScaInformation = true; // mark as set
   }
 
   /**
@@ -204,6 +241,7 @@ public void setScaInformation(CreateScaInformation scaInformation) {
    */
   public CreateTransferLimitRequest scope(Scope scope) {
     this.scope = scope;
+    isSetScope = true; // mark as set
     return this;
   }
 
@@ -227,6 +265,7 @@ public Scope getScope() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScope(Scope scope) {
     this.scope = scope;
+    isSetScope = true; // mark as set
   }
 
   /**
@@ -241,6 +280,7 @@ public void setScope(Scope scope) {
    */
   public CreateTransferLimitRequest startsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
     return this;
   }
 
@@ -272,6 +312,7 @@ public OffsetDateTime getStartsAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
   }
 
   /**
@@ -282,6 +323,7 @@ public void setStartsAt(OffsetDateTime startsAt) {
    */
   public CreateTransferLimitRequest transferType(TransferType transferType) {
     this.transferType = transferType;
+    isSetTransferType = true; // mark as set
     return this;
   }
 
@@ -305,6 +347,27 @@ public TransferType getTransferType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferType(TransferType transferType) {
     this.transferType = transferType;
+    isSetTransferType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public CreateTransferLimitRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this CreateTransferLimitRequest object is equal to o. */
@@ -356,6 +419,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+    if (isSetEndsAt) {
+      addIfNull(nulls, JSON_PROPERTY_ENDS_AT, this.endsAt);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetScaInformation) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_INFORMATION, this.scaInformation);
+    }
+    if (isSetScope) {
+      addIfNull(nulls, JSON_PROPERTY_SCOPE, this.scope);
+    }
+    if (isSetStartsAt) {
+      addIfNull(nulls, JSON_PROPERTY_STARTS_AT, this.startsAt);
+    }
+    if (isSetTransferType) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_TYPE, this.transferType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of CreateTransferLimitRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DKLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/DKLocalAccountIdentification.java
index d71699bac..5c01a9866 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DKLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DKLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class DKLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_BANK_CODE = "bankCode";
   private String bankCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankCode = false;
+
   /** **dkLocal** */
   public enum TypeEnum {
     DKLOCAL(String.valueOf("dkLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DKLocalAccountIdentification() {}
 
   /**
@@ -87,6 +104,7 @@ public DKLocalAccountIdentification() {}
    */
   public DKLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -112,6 +130,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -122,6 +141,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public DKLocalAccountIdentification bankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
     return this;
   }
 
@@ -146,6 +166,7 @@ public String getBankCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankCode(String bankCode) {
     this.bankCode = bankCode;
+    isSetBankCode = true; // mark as set
   }
 
   /**
@@ -156,6 +177,7 @@ public void setBankCode(String bankCode) {
    */
   public DKLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -179,6 +201,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DKLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DKLocalAccountIdentification object is equal to o. */
@@ -222,6 +265,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetBankCode) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_CODE, this.bankCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DKLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DayOfWeekRestriction.java b/src/main/java/com/adyen/model/balanceplatform/DayOfWeekRestriction.java
index 175e26def..c8a6ab296 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DayOfWeekRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DayOfWeekRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class DayOfWeekRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     FRIDAY(String.valueOf("friday")),
@@ -86,6 +91,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DayOfWeekRestriction() {}
 
   /**
@@ -96,6 +110,7 @@ public DayOfWeekRestriction() {}
    */
   public DayOfWeekRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -119,6 +134,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -131,6 +147,7 @@ public void setOperation(String operation) {
    */
   public DayOfWeekRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -166,6 +183,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DayOfWeekRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DayOfWeekRestriction object is equal to o. */
@@ -207,6 +245,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DayOfWeekRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DefaultErrorResponseEntity.java b/src/main/java/com/adyen/model/balanceplatform/DefaultErrorResponseEntity.java
index a83760921..24d7d61d8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DefaultErrorResponseEntity.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DefaultErrorResponseEntity.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -34,27 +36,57 @@ public class DefaultErrorResponseEntity {
   public static final String JSON_PROPERTY_DETAIL = "detail";
   private String detail;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDetail = false;
+
   public static final String JSON_PROPERTY_ERROR_CODE = "errorCode";
   private String errorCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetErrorCode = false;
+
   public static final String JSON_PROPERTY_INSTANCE = "instance";
   private String instance;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInstance = false;
+
   public static final String JSON_PROPERTY_INVALID_FIELDS = "invalidFields";
   private List<InvalidField> invalidFields;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInvalidFields = false;
+
   public static final String JSON_PROPERTY_REQUEST_ID = "requestId";
   private String requestId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestId = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private Integer status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TITLE = "title";
   private String title;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTitle = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private String type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DefaultErrorResponseEntity() {}
 
   /**
@@ -65,6 +97,7 @@ public DefaultErrorResponseEntity() {}
    */
   public DefaultErrorResponseEntity detail(String detail) {
     this.detail = detail;
+    isSetDetail = true; // mark as set
     return this;
   }
 
@@ -88,6 +121,7 @@ public String getDetail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDetail(String detail) {
     this.detail = detail;
+    isSetDetail = true; // mark as set
   }
 
   /**
@@ -98,6 +132,7 @@ public void setDetail(String detail) {
    */
   public DefaultErrorResponseEntity errorCode(String errorCode) {
     this.errorCode = errorCode;
+    isSetErrorCode = true; // mark as set
     return this;
   }
 
@@ -121,6 +156,7 @@ public String getErrorCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setErrorCode(String errorCode) {
     this.errorCode = errorCode;
+    isSetErrorCode = true; // mark as set
   }
 
   /**
@@ -131,6 +167,7 @@ public void setErrorCode(String errorCode) {
    */
   public DefaultErrorResponseEntity instance(String instance) {
     this.instance = instance;
+    isSetInstance = true; // mark as set
     return this;
   }
 
@@ -154,6 +191,7 @@ public String getInstance() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInstance(String instance) {
     this.instance = instance;
+    isSetInstance = true; // mark as set
   }
 
   /**
@@ -164,6 +202,7 @@ public void setInstance(String instance) {
    */
   public DefaultErrorResponseEntity invalidFields(List<InvalidField> invalidFields) {
     this.invalidFields = invalidFields;
+    isSetInvalidFields = true; // mark as set
     return this;
   }
 
@@ -195,6 +234,7 @@ public List<InvalidField> getInvalidFields() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInvalidFields(List<InvalidField> invalidFields) {
     this.invalidFields = invalidFields;
+    isSetInvalidFields = true; // mark as set
   }
 
   /**
@@ -205,6 +245,7 @@ public void setInvalidFields(List<InvalidField> invalidFields) {
    */
   public DefaultErrorResponseEntity requestId(String requestId) {
     this.requestId = requestId;
+    isSetRequestId = true; // mark as set
     return this;
   }
 
@@ -228,6 +269,7 @@ public String getRequestId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestId(String requestId) {
     this.requestId = requestId;
+    isSetRequestId = true; // mark as set
   }
 
   /**
@@ -238,6 +280,7 @@ public void setRequestId(String requestId) {
    */
   public DefaultErrorResponseEntity status(Integer status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -261,6 +304,7 @@ public Integer getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(Integer status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -271,6 +315,7 @@ public void setStatus(Integer status) {
    */
   public DefaultErrorResponseEntity title(String title) {
     this.title = title;
+    isSetTitle = true; // mark as set
     return this;
   }
 
@@ -294,6 +339,7 @@ public String getTitle() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTitle(String title) {
     this.title = title;
+    isSetTitle = true; // mark as set
   }
 
   /**
@@ -306,6 +352,7 @@ public void setTitle(String title) {
    */
   public DefaultErrorResponseEntity type(String type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -333,6 +380,27 @@ public String getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(String type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DefaultErrorResponseEntity includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DefaultErrorResponseEntity object is equal to o. */
@@ -386,6 +454,51 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDetail) {
+      addIfNull(nulls, JSON_PROPERTY_DETAIL, this.detail);
+    }
+    if (isSetErrorCode) {
+      addIfNull(nulls, JSON_PROPERTY_ERROR_CODE, this.errorCode);
+    }
+    if (isSetInstance) {
+      addIfNull(nulls, JSON_PROPERTY_INSTANCE, this.instance);
+    }
+    if (isSetInvalidFields) {
+      addIfNull(nulls, JSON_PROPERTY_INVALID_FIELDS, this.invalidFields);
+    }
+    if (isSetRequestId) {
+      addIfNull(nulls, JSON_PROPERTY_REQUEST_ID, this.requestId);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTitle) {
+      addIfNull(nulls, JSON_PROPERTY_TITLE, this.title);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DefaultErrorResponseEntity given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DelegatedAuthenticationData.java b/src/main/java/com/adyen/model/balanceplatform/DelegatedAuthenticationData.java
index eea5efe3a..c4a64cb49 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DelegatedAuthenticationData.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DelegatedAuthenticationData.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class DelegatedAuthenticationData {
   public static final String JSON_PROPERTY_SDK_OUTPUT = "sdkOutput";
   private String sdkOutput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkOutput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DelegatedAuthenticationData() {}
 
   /**
@@ -35,6 +46,7 @@ public DelegatedAuthenticationData() {}
    */
   public DelegatedAuthenticationData sdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
     return this;
   }
 
@@ -62,6 +74,27 @@ public String getSdkOutput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DelegatedAuthenticationData includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DelegatedAuthenticationData object is equal to o. */
@@ -101,6 +134,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkOutput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_OUTPUT, this.sdkOutput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DelegatedAuthenticationData given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DeliveryAddress.java b/src/main/java/com/adyen/model/balanceplatform/DeliveryAddress.java
index a83f678b9..eb9f329fa 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DeliveryAddress.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DeliveryAddress.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,24 +33,51 @@ public class DeliveryAddress {
   public static final String JSON_PROPERTY_CITY = "city";
   private String city;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCity = false;
+
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_LINE1 = "line1";
   private String line1;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine1 = false;
+
   public static final String JSON_PROPERTY_LINE2 = "line2";
   private String line2;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine2 = false;
+
   public static final String JSON_PROPERTY_LINE3 = "line3";
   private String line3;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLine3 = false;
+
   public static final String JSON_PROPERTY_POSTAL_CODE = "postalCode";
   private String postalCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPostalCode = false;
+
   public static final String JSON_PROPERTY_STATE_OR_PROVINCE = "stateOrProvince";
   private String stateOrProvince;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStateOrProvince = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DeliveryAddress() {}
 
   /**
@@ -59,6 +88,7 @@ public DeliveryAddress() {}
    */
   public DeliveryAddress city(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
     return this;
   }
 
@@ -82,6 +112,7 @@ public String getCity() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCity(String city) {
     this.city = city;
+    isSetCity = true; // mark as set
   }
 
   /**
@@ -96,6 +127,7 @@ public void setCity(String city) {
    */
   public DeliveryAddress country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -127,6 +159,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -139,6 +172,7 @@ public void setCountry(String country) {
    */
   public DeliveryAddress line1(String line1) {
     this.line1 = line1;
+    isSetLine1 = true; // mark as set
     return this;
   }
 
@@ -166,6 +200,7 @@ public String getLine1() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine1(String line1) {
     this.line1 = line1;
+    isSetLine1 = true; // mark as set
   }
 
   /**
@@ -178,6 +213,7 @@ public void setLine1(String line1) {
    */
   public DeliveryAddress line2(String line2) {
     this.line2 = line2;
+    isSetLine2 = true; // mark as set
     return this;
   }
 
@@ -205,6 +241,7 @@ public String getLine2() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine2(String line2) {
     this.line2 = line2;
+    isSetLine2 = true; // mark as set
   }
 
   /**
@@ -215,6 +252,7 @@ public void setLine2(String line2) {
    */
   public DeliveryAddress line3(String line3) {
     this.line3 = line3;
+    isSetLine3 = true; // mark as set
     return this;
   }
 
@@ -238,6 +276,7 @@ public String getLine3() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLine3(String line3) {
     this.line3 = line3;
+    isSetLine3 = true; // mark as set
   }
 
   /**
@@ -250,6 +289,7 @@ public void setLine3(String line3) {
    */
   public DeliveryAddress postalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
     return this;
   }
 
@@ -277,6 +317,7 @@ public String getPostalCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPostalCode(String postalCode) {
     this.postalCode = postalCode;
+    isSetPostalCode = true; // mark as set
   }
 
   /**
@@ -290,6 +331,7 @@ public void setPostalCode(String postalCode) {
    */
   public DeliveryAddress stateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
     return this;
   }
 
@@ -319,6 +361,27 @@ public String getStateOrProvince() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStateOrProvince(String stateOrProvince) {
     this.stateOrProvince = stateOrProvince;
+    isSetStateOrProvince = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DeliveryAddress includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DeliveryAddress object is equal to o. */
@@ -370,6 +433,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCity) {
+      addIfNull(nulls, JSON_PROPERTY_CITY, this.city);
+    }
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetLine1) {
+      addIfNull(nulls, JSON_PROPERTY_LINE1, this.line1);
+    }
+    if (isSetLine2) {
+      addIfNull(nulls, JSON_PROPERTY_LINE2, this.line2);
+    }
+    if (isSetLine3) {
+      addIfNull(nulls, JSON_PROPERTY_LINE3, this.line3);
+    }
+    if (isSetPostalCode) {
+      addIfNull(nulls, JSON_PROPERTY_POSTAL_CODE, this.postalCode);
+    }
+    if (isSetStateOrProvince) {
+      addIfNull(nulls, JSON_PROPERTY_STATE_OR_PROVINCE, this.stateOrProvince);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DeliveryAddress given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DeliveryContact.java b/src/main/java/com/adyen/model/balanceplatform/DeliveryContact.java
index 2060508f9..15d48967b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DeliveryContact.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DeliveryContact.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,24 +33,51 @@ public class DeliveryContact {
   public static final String JSON_PROPERTY_ADDRESS = "address";
   private DeliveryAddress address;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAddress = false;
+
   public static final String JSON_PROPERTY_COMPANY = "company";
   private String company;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCompany = false;
+
   public static final String JSON_PROPERTY_EMAIL = "email";
   private String email;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEmail = false;
+
   public static final String JSON_PROPERTY_FULL_PHONE_NUMBER = "fullPhoneNumber";
   private String fullPhoneNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFullPhoneNumber = false;
+
   public static final String JSON_PROPERTY_NAME = "name";
   private Name name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_PHONE_NUMBER = "phoneNumber";
   private PhoneNumber phoneNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhoneNumber = false;
+
   public static final String JSON_PROPERTY_WEB_ADDRESS = "webAddress";
   private String webAddress;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWebAddress = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DeliveryContact() {}
 
   /**
@@ -59,6 +88,7 @@ public DeliveryContact() {}
    */
   public DeliveryContact address(DeliveryAddress address) {
     this.address = address;
+    isSetAddress = true; // mark as set
     return this;
   }
 
@@ -82,6 +112,7 @@ public DeliveryAddress getAddress() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAddress(DeliveryAddress address) {
     this.address = address;
+    isSetAddress = true; // mark as set
   }
 
   /**
@@ -92,6 +123,7 @@ public void setAddress(DeliveryAddress address) {
    */
   public DeliveryContact company(String company) {
     this.company = company;
+    isSetCompany = true; // mark as set
     return this;
   }
 
@@ -115,6 +147,7 @@ public String getCompany() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCompany(String company) {
     this.company = company;
+    isSetCompany = true; // mark as set
   }
 
   /**
@@ -125,6 +158,7 @@ public void setCompany(String company) {
    */
   public DeliveryContact email(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
     return this;
   }
 
@@ -148,6 +182,7 @@ public String getEmail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEmail(String email) {
     this.email = email;
+    isSetEmail = true; // mark as set
   }
 
   /**
@@ -162,6 +197,7 @@ public void setEmail(String email) {
    */
   public DeliveryContact fullPhoneNumber(String fullPhoneNumber) {
     this.fullPhoneNumber = fullPhoneNumber;
+    isSetFullPhoneNumber = true; // mark as set
     return this;
   }
 
@@ -193,6 +229,7 @@ public String getFullPhoneNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFullPhoneNumber(String fullPhoneNumber) {
     this.fullPhoneNumber = fullPhoneNumber;
+    isSetFullPhoneNumber = true; // mark as set
   }
 
   /**
@@ -203,6 +240,7 @@ public void setFullPhoneNumber(String fullPhoneNumber) {
    */
   public DeliveryContact name(Name name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -226,6 +264,7 @@ public Name getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(Name name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -236,6 +275,7 @@ public void setName(Name name) {
    */
   public DeliveryContact phoneNumber(PhoneNumber phoneNumber) {
     this.phoneNumber = phoneNumber;
+    isSetPhoneNumber = true; // mark as set
     return this;
   }
 
@@ -259,6 +299,7 @@ public PhoneNumber getPhoneNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhoneNumber(PhoneNumber phoneNumber) {
     this.phoneNumber = phoneNumber;
+    isSetPhoneNumber = true; // mark as set
   }
 
   /**
@@ -269,6 +310,7 @@ public void setPhoneNumber(PhoneNumber phoneNumber) {
    */
   public DeliveryContact webAddress(String webAddress) {
     this.webAddress = webAddress;
+    isSetWebAddress = true; // mark as set
     return this;
   }
 
@@ -292,6 +334,27 @@ public String getWebAddress() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setWebAddress(String webAddress) {
     this.webAddress = webAddress;
+    isSetWebAddress = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DeliveryContact includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DeliveryContact object is equal to o. */
@@ -343,6 +406,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAddress) {
+      addIfNull(nulls, JSON_PROPERTY_ADDRESS, this.address);
+    }
+    if (isSetCompany) {
+      addIfNull(nulls, JSON_PROPERTY_COMPANY, this.company);
+    }
+    if (isSetEmail) {
+      addIfNull(nulls, JSON_PROPERTY_EMAIL, this.email);
+    }
+    if (isSetFullPhoneNumber) {
+      addIfNull(nulls, JSON_PROPERTY_FULL_PHONE_NUMBER, this.fullPhoneNumber);
+    }
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetPhoneNumber) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE_NUMBER, this.phoneNumber);
+    }
+    if (isSetWebAddress) {
+      addIfNull(nulls, JSON_PROPERTY_WEB_ADDRESS, this.webAddress);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DeliveryContact given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Device.java b/src/main/java/com/adyen/model/balanceplatform/Device.java
index 6ccc17a0d..e124486c0 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Device.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Device.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,12 +34,21 @@ public class Device {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   /** The type of device. Possible values: **ios**, **android**, **browser**. */
   public enum TypeEnum {
     IOS(String.valueOf("ios")),
@@ -84,6 +95,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Device() {}
 
   /**
@@ -94,6 +114,7 @@ public Device() {}
    */
   public Device id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -117,6 +138,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -129,6 +151,7 @@ public void setId(String id) {
    */
   public Device name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -156,6 +179,7 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -167,6 +191,7 @@ public void setName(String name) {
    */
   public Device paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -192,6 +217,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -202,6 +228,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
    */
   public Device type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -225,6 +252,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Device includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Device object is equal to o. */
@@ -272,6 +320,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Device given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DeviceInfo.java b/src/main/java/com/adyen/model/balanceplatform/DeviceInfo.java
index 720a344a6..a44cec78d 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DeviceInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DeviceInfo.java
@@ -11,145 +11,53 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import java.util.*;
-import java.util.ArrayList;
-import java.util.List;
 
 /** DeviceInfo */
-@JsonPropertyOrder({
-  DeviceInfo.JSON_PROPERTY_CARD_CAPTURE_TECHNOLOGY,
-  DeviceInfo.JSON_PROPERTY_DEVICE_NAME,
-  DeviceInfo.JSON_PROPERTY_FORM_FACTOR,
-  DeviceInfo.JSON_PROPERTY_IMEI,
-  DeviceInfo.JSON_PROPERTY_ISO_DEVICE_TYPE,
-  DeviceInfo.JSON_PROPERTY_MSISDN,
-  DeviceInfo.JSON_PROPERTY_OS_NAME,
-  DeviceInfo.JSON_PROPERTY_OS_VERSION,
-  DeviceInfo.JSON_PROPERTY_PAYMENT_TYPES,
-  DeviceInfo.JSON_PROPERTY_SERIAL_NUMBER,
-  DeviceInfo.JSON_PROPERTY_STORAGE_TECHNOLOGY
-})
+@JsonPropertyOrder({DeviceInfo.JSON_PROPERTY_FORM_FACTOR, DeviceInfo.JSON_PROPERTY_OS_NAME})
 public class DeviceInfo {
-  public static final String JSON_PROPERTY_CARD_CAPTURE_TECHNOLOGY = "cardCaptureTechnology";
-  private String cardCaptureTechnology;
-
-  public static final String JSON_PROPERTY_DEVICE_NAME = "deviceName";
-  private String deviceName;
-
   public static final String JSON_PROPERTY_FORM_FACTOR = "formFactor";
   private String formFactor;
 
-  public static final String JSON_PROPERTY_IMEI = "imei";
-  private String imei;
-
-  public static final String JSON_PROPERTY_ISO_DEVICE_TYPE = "isoDeviceType";
-  private String isoDeviceType;
-
-  public static final String JSON_PROPERTY_MSISDN = "msisdn";
-  private String msisdn;
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFormFactor = false;
 
   public static final String JSON_PROPERTY_OS_NAME = "osName";
   private String osName;
 
-  public static final String JSON_PROPERTY_OS_VERSION = "osVersion";
-  private String osVersion;
-
-  public static final String JSON_PROPERTY_PAYMENT_TYPES = "paymentTypes";
-  private List<String> paymentTypes;
-
-  public static final String JSON_PROPERTY_SERIAL_NUMBER = "serialNumber";
-  private String serialNumber;
-
-  public static final String JSON_PROPERTY_STORAGE_TECHNOLOGY = "storageTechnology";
-  private String storageTechnology;
-
-  public DeviceInfo() {}
-
-  /**
-   * The technology used to capture the card details.
-   *
-   * @param cardCaptureTechnology The technology used to capture the card details.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo cardCaptureTechnology(String cardCaptureTechnology) {
-    this.cardCaptureTechnology = cardCaptureTechnology;
-    return this;
-  }
-
-  /**
-   * The technology used to capture the card details.
-   *
-   * @return cardCaptureTechnology The technology used to capture the card details.
-   */
-  @JsonProperty(JSON_PROPERTY_CARD_CAPTURE_TECHNOLOGY)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getCardCaptureTechnology() {
-    return cardCaptureTechnology;
-  }
-
-  /**
-   * The technology used to capture the card details.
-   *
-   * @param cardCaptureTechnology The technology used to capture the card details.
-   */
-  @JsonProperty(JSON_PROPERTY_CARD_CAPTURE_TECHNOLOGY)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setCardCaptureTechnology(String cardCaptureTechnology) {
-    this.cardCaptureTechnology = cardCaptureTechnology;
-  }
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOsName = false;
 
   /**
-   * The name of the device.
-   *
-   * @param deviceName The name of the device.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
    */
-  public DeviceInfo deviceName(String deviceName) {
-    this.deviceName = deviceName;
-    return this;
-  }
+  @JsonIgnore private boolean includeNullValues = false;
 
-  /**
-   * The name of the device.
-   *
-   * @return deviceName The name of the device.
-   */
-  @JsonProperty(JSON_PROPERTY_DEVICE_NAME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getDeviceName() {
-    return deviceName;
-  }
-
-  /**
-   * The name of the device.
-   *
-   * @param deviceName The name of the device.
-   */
-  @JsonProperty(JSON_PROPERTY_DEVICE_NAME)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setDeviceName(String deviceName) {
-    this.deviceName = deviceName;
-  }
+  public DeviceInfo() {}
 
   /**
-   * The form factor of the device to be provisioned.
+   * The type of device used to provision the network token.
    *
-   * @param formFactor The form factor of the device to be provisioned.
+   * @param formFactor The type of device used to provision the network token.
    * @return the current {@code DeviceInfo} instance, allowing for method chaining
    */
   public DeviceInfo formFactor(String formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
     return this;
   }
 
   /**
-   * The form factor of the device to be provisioned.
+   * The type of device used to provision the network token.
    *
-   * @return formFactor The form factor of the device to be provisioned.
+   * @return formFactor The type of device used to provision the network token.
    */
   @JsonProperty(JSON_PROPERTY_FORM_FACTOR)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -158,133 +66,33 @@ public String getFormFactor() {
   }
 
   /**
-   * The form factor of the device to be provisioned.
+   * The type of device used to provision the network token.
    *
-   * @param formFactor The form factor of the device to be provisioned.
+   * @param formFactor The type of device used to provision the network token.
    */
   @JsonProperty(JSON_PROPERTY_FORM_FACTOR)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFormFactor(String formFactor) {
     this.formFactor = formFactor;
+    isSetFormFactor = true; // mark as set
   }
 
   /**
-   * The IMEI number of the device being provisioned.
+   * The operating system of the device used to provision the network token.
    *
-   * @param imei The IMEI number of the device being provisioned.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo imei(String imei) {
-    this.imei = imei;
-    return this;
-  }
-
-  /**
-   * The IMEI number of the device being provisioned.
-   *
-   * @return imei The IMEI number of the device being provisioned.
-   */
-  @JsonProperty(JSON_PROPERTY_IMEI)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getImei() {
-    return imei;
-  }
-
-  /**
-   * The IMEI number of the device being provisioned.
-   *
-   * @param imei The IMEI number of the device being provisioned.
-   */
-  @JsonProperty(JSON_PROPERTY_IMEI)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setImei(String imei) {
-    this.imei = imei;
-  }
-
-  /**
-   * The 2-digit device type provided on the ISO messages that the token is being provisioned to.
-   *
-   * @param isoDeviceType The 2-digit device type provided on the ISO messages that the token is
-   *     being provisioned to.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo isoDeviceType(String isoDeviceType) {
-    this.isoDeviceType = isoDeviceType;
-    return this;
-  }
-
-  /**
-   * The 2-digit device type provided on the ISO messages that the token is being provisioned to.
-   *
-   * @return isoDeviceType The 2-digit device type provided on the ISO messages that the token is
-   *     being provisioned to.
-   */
-  @JsonProperty(JSON_PROPERTY_ISO_DEVICE_TYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getIsoDeviceType() {
-    return isoDeviceType;
-  }
-
-  /**
-   * The 2-digit device type provided on the ISO messages that the token is being provisioned to.
-   *
-   * @param isoDeviceType The 2-digit device type provided on the ISO messages that the token is
-   *     being provisioned to.
-   */
-  @JsonProperty(JSON_PROPERTY_ISO_DEVICE_TYPE)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setIsoDeviceType(String isoDeviceType) {
-    this.isoDeviceType = isoDeviceType;
-  }
-
-  /**
-   * The MSISDN of the device being provisioned.
-   *
-   * @param msisdn The MSISDN of the device being provisioned.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo msisdn(String msisdn) {
-    this.msisdn = msisdn;
-    return this;
-  }
-
-  /**
-   * The MSISDN of the device being provisioned.
-   *
-   * @return msisdn The MSISDN of the device being provisioned.
-   */
-  @JsonProperty(JSON_PROPERTY_MSISDN)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getMsisdn() {
-    return msisdn;
-  }
-
-  /**
-   * The MSISDN of the device being provisioned.
-   *
-   * @param msisdn The MSISDN of the device being provisioned.
-   */
-  @JsonProperty(JSON_PROPERTY_MSISDN)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setMsisdn(String msisdn) {
-    this.msisdn = msisdn;
-  }
-
-  /**
-   * The name of the device operating system.
-   *
-   * @param osName The name of the device operating system.
+   * @param osName The operating system of the device used to provision the network token.
    * @return the current {@code DeviceInfo} instance, allowing for method chaining
    */
   public DeviceInfo osName(String osName) {
     this.osName = osName;
+    isSetOsName = true; // mark as set
     return this;
   }
 
   /**
-   * The name of the device operating system.
+   * The operating system of the device used to provision the network token.
    *
-   * @return osName The name of the device operating system.
+   * @return osName The operating system of the device used to provision the network token.
    */
   @JsonProperty(JSON_PROPERTY_OS_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
@@ -293,154 +101,35 @@ public String getOsName() {
   }
 
   /**
-   * The name of the device operating system.
+   * The operating system of the device used to provision the network token.
    *
-   * @param osName The name of the device operating system.
+   * @param osName The operating system of the device used to provision the network token.
    */
   @JsonProperty(JSON_PROPERTY_OS_NAME)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOsName(String osName) {
     this.osName = osName;
+    isSetOsName = true; // mark as set
   }
 
   /**
-   * The version of the device operating system.
-   *
-   * @param osVersion The version of the device operating system.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo osVersion(String osVersion) {
-    this.osVersion = osVersion;
-    return this;
-  }
-
-  /**
-   * The version of the device operating system.
-   *
-   * @return osVersion The version of the device operating system.
-   */
-  @JsonProperty(JSON_PROPERTY_OS_VERSION)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getOsVersion() {
-    return osVersion;
-  }
-
-  /**
-   * The version of the device operating system.
-   *
-   * @param osVersion The version of the device operating system.
-   */
-  @JsonProperty(JSON_PROPERTY_OS_VERSION)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setOsVersion(String osVersion) {
-    this.osVersion = osVersion;
-  }
-
-  /**
-   * Different types of payments supported for the network token.
-   *
-   * @param paymentTypes Different types of payments supported for the network token.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo paymentTypes(List<String> paymentTypes) {
-    this.paymentTypes = paymentTypes;
-    return this;
-  }
-
-  public DeviceInfo addPaymentTypesItem(String paymentTypesItem) {
-    if (this.paymentTypes == null) {
-      this.paymentTypes = new ArrayList<>();
-    }
-    this.paymentTypes.add(paymentTypesItem);
-    return this;
-  }
-
-  /**
-   * Different types of payments supported for the network token.
-   *
-   * @return paymentTypes Different types of payments supported for the network token.
-   */
-  @JsonProperty(JSON_PROPERTY_PAYMENT_TYPES)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public List<String> getPaymentTypes() {
-    return paymentTypes;
-  }
-
-  /**
-   * Different types of payments supported for the network token.
-   *
-   * @param paymentTypes Different types of payments supported for the network token.
-   */
-  @JsonProperty(JSON_PROPERTY_PAYMENT_TYPES)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setPaymentTypes(List<String> paymentTypes) {
-    this.paymentTypes = paymentTypes;
-  }
-
-  /**
-   * The serial number of the device.
-   *
-   * @param serialNumber The serial number of the device.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
    */
-  public DeviceInfo serialNumber(String serialNumber) {
-    this.serialNumber = serialNumber;
+  public DeviceInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
     return this;
   }
 
-  /**
-   * The serial number of the device.
-   *
-   * @return serialNumber The serial number of the device.
-   */
-  @JsonProperty(JSON_PROPERTY_SERIAL_NUMBER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getSerialNumber() {
-    return serialNumber;
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
   }
 
   /**
-   * The serial number of the device.
-   *
-   * @param serialNumber The serial number of the device.
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
    */
-  @JsonProperty(JSON_PROPERTY_SERIAL_NUMBER)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setSerialNumber(String serialNumber) {
-    this.serialNumber = serialNumber;
-  }
-
-  /**
-   * The architecture or technology used for network token storage.
-   *
-   * @param storageTechnology The architecture or technology used for network token storage.
-   * @return the current {@code DeviceInfo} instance, allowing for method chaining
-   */
-  public DeviceInfo storageTechnology(String storageTechnology) {
-    this.storageTechnology = storageTechnology;
-    return this;
-  }
-
-  /**
-   * The architecture or technology used for network token storage.
-   *
-   * @return storageTechnology The architecture or technology used for network token storage.
-   */
-  @JsonProperty(JSON_PROPERTY_STORAGE_TECHNOLOGY)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public String getStorageTechnology() {
-    return storageTechnology;
-  }
-
-  /**
-   * The architecture or technology used for network token storage.
-   *
-   * @param storageTechnology The architecture or technology used for network token storage.
-   */
-  @JsonProperty(JSON_PROPERTY_STORAGE_TECHNOLOGY)
-  @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
-  public void setStorageTechnology(String storageTechnology) {
-    this.storageTechnology = storageTechnology;
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DeviceInfo object is equal to o. */
@@ -453,52 +142,21 @@ public boolean equals(Object o) {
       return false;
     }
     DeviceInfo deviceInfo = (DeviceInfo) o;
-    return Objects.equals(this.cardCaptureTechnology, deviceInfo.cardCaptureTechnology)
-        && Objects.equals(this.deviceName, deviceInfo.deviceName)
-        && Objects.equals(this.formFactor, deviceInfo.formFactor)
-        && Objects.equals(this.imei, deviceInfo.imei)
-        && Objects.equals(this.isoDeviceType, deviceInfo.isoDeviceType)
-        && Objects.equals(this.msisdn, deviceInfo.msisdn)
-        && Objects.equals(this.osName, deviceInfo.osName)
-        && Objects.equals(this.osVersion, deviceInfo.osVersion)
-        && Objects.equals(this.paymentTypes, deviceInfo.paymentTypes)
-        && Objects.equals(this.serialNumber, deviceInfo.serialNumber)
-        && Objects.equals(this.storageTechnology, deviceInfo.storageTechnology);
+    return Objects.equals(this.formFactor, deviceInfo.formFactor)
+        && Objects.equals(this.osName, deviceInfo.osName);
   }
 
   @Override
   public int hashCode() {
-    return Objects.hash(
-        cardCaptureTechnology,
-        deviceName,
-        formFactor,
-        imei,
-        isoDeviceType,
-        msisdn,
-        osName,
-        osVersion,
-        paymentTypes,
-        serialNumber,
-        storageTechnology);
+    return Objects.hash(formFactor, osName);
   }
 
   @Override
   public String toString() {
     StringBuilder sb = new StringBuilder();
     sb.append("class DeviceInfo {\n");
-    sb.append("    cardCaptureTechnology: ")
-        .append(toIndentedString(cardCaptureTechnology))
-        .append("\n");
-    sb.append("    deviceName: ").append(toIndentedString(deviceName)).append("\n");
     sb.append("    formFactor: ").append(toIndentedString(formFactor)).append("\n");
-    sb.append("    imei: ").append(toIndentedString(imei)).append("\n");
-    sb.append("    isoDeviceType: ").append(toIndentedString(isoDeviceType)).append("\n");
-    sb.append("    msisdn: ").append(toIndentedString(msisdn)).append("\n");
     sb.append("    osName: ").append(toIndentedString(osName)).append("\n");
-    sb.append("    osVersion: ").append(toIndentedString(osVersion)).append("\n");
-    sb.append("    paymentTypes: ").append(toIndentedString(paymentTypes)).append("\n");
-    sb.append("    serialNumber: ").append(toIndentedString(serialNumber)).append("\n");
-    sb.append("    storageTechnology: ").append(toIndentedString(storageTechnology)).append("\n");
     sb.append("}");
     return sb.toString();
   }
@@ -513,6 +171,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetFormFactor) {
+      addIfNull(nulls, JSON_PROPERTY_FORM_FACTOR, this.formFactor);
+    }
+    if (isSetOsName) {
+      addIfNull(nulls, JSON_PROPERTY_OS_NAME, this.osName);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DeviceInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/DifferentCurrenciesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/DifferentCurrenciesRestriction.java
index a20738a43..3a5fc91d8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/DifferentCurrenciesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/DifferentCurrenciesRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class DifferentCurrenciesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Boolean value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public DifferentCurrenciesRestriction() {}
 
   /**
@@ -40,6 +54,7 @@ public DifferentCurrenciesRestriction() {}
    */
   public DifferentCurrenciesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -78,6 +94,7 @@ public void setOperation(String operation) {
    */
   public DifferentCurrenciesRestriction value(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -109,6 +126,27 @@ public Boolean getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public DifferentCurrenciesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this DifferentCurrenciesRestriction object is equal to o. */
@@ -151,6 +189,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of DifferentCurrenciesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Duration.java b/src/main/java/com/adyen/model/balanceplatform/Duration.java
index 67087e9a8..aa23def1a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Duration.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Duration.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -77,9 +79,21 @@ public static UnitEnum fromValue(String value) {
   public static final String JSON_PROPERTY_UNIT = "unit";
   private UnitEnum unit;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetUnit = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Integer value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Duration() {}
 
   /**
@@ -93,6 +107,7 @@ public Duration() {}
    */
   public Duration unit(UnitEnum unit) {
     this.unit = unit;
+    isSetUnit = true; // mark as set
     return this;
   }
 
@@ -122,6 +137,7 @@ public UnitEnum getUnit() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setUnit(UnitEnum unit) {
     this.unit = unit;
+    isSetUnit = true; // mark as set
   }
 
   /**
@@ -134,6 +150,7 @@ public void setUnit(UnitEnum unit) {
    */
   public Duration value(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -161,6 +178,27 @@ public Integer getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Duration includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Duration object is equal to o. */
@@ -201,6 +239,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetUnit) {
+      addIfNull(nulls, JSON_PROPERTY_UNIT, this.unit);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Duration given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/EntryModesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/EntryModesRestriction.java
index 989e79ce3..dc2779b12 100644
--- a/src/main/java/com/adyen/model/balanceplatform/EntryModesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/EntryModesRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class EntryModesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     BARCODE(String.valueOf("barcode")),
@@ -90,6 +95,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public EntryModesRestriction() {}
 
   /**
@@ -100,6 +114,7 @@ public EntryModesRestriction() {}
    */
   public EntryModesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -123,6 +138,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -135,6 +151,7 @@ public void setOperation(String operation) {
    */
   public EntryModesRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -170,6 +187,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public EntryModesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this EntryModesRestriction object is equal to o. */
@@ -211,6 +249,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of EntryModesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Expiry.java b/src/main/java/com/adyen/model/balanceplatform/Expiry.java
index ad0235bcc..e9ed35e58 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Expiry.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Expiry.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class Expiry {
   public static final String JSON_PROPERTY_MONTH = "month";
   private String month;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMonth = false;
+
   public static final String JSON_PROPERTY_YEAR = "year";
   private String year;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetYear = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Expiry() {}
 
   /**
@@ -36,6 +50,7 @@ public Expiry() {}
    */
   public Expiry month(String month) {
     this.month = month;
+    isSetMonth = true; // mark as set
     return this;
   }
 
@@ -59,6 +74,7 @@ public String getMonth() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMonth(String month) {
     this.month = month;
+    isSetMonth = true; // mark as set
   }
 
   /**
@@ -69,6 +85,7 @@ public void setMonth(String month) {
    */
   public Expiry year(String year) {
     this.year = year;
+    isSetYear = true; // mark as set
     return this;
   }
 
@@ -92,6 +109,27 @@ public String getYear() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setYear(String year) {
     this.year = year;
+    isSetYear = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Expiry includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Expiry object is equal to o. */
@@ -132,6 +170,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetMonth) {
+      addIfNull(nulls, JSON_PROPERTY_MONTH, this.month);
+    }
+    if (isSetYear) {
+      addIfNull(nulls, JSON_PROPERTY_YEAR, this.year);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Expiry given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Fee.java b/src/main/java/com/adyen/model/balanceplatform/Fee.java
index 160316204..b4afef08d 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Fee.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Fee.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class Fee {
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Fee() {}
 
   /**
@@ -33,6 +44,7 @@ public Fee() {}
    */
   public Fee amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Fee includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Fee object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Fee given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationRequest.java b/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationRequest.java
index e6a010450..092a959e8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class FinishScaDeviceRegistrationRequest {
   public static final String JSON_PROPERTY_SDK_OUTPUT = "sdkOutput";
   private String sdkOutput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkOutput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public FinishScaDeviceRegistrationRequest() {}
 
   /**
@@ -36,6 +47,7 @@ public FinishScaDeviceRegistrationRequest() {}
    */
   public FinishScaDeviceRegistrationRequest sdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
     return this;
   }
 
@@ -63,6 +75,27 @@ public String getSdkOutput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public FinishScaDeviceRegistrationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this FinishScaDeviceRegistrationRequest object is equal to o. */
@@ -103,6 +136,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkOutput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_OUTPUT, this.sdkOutput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of FinishScaDeviceRegistrationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationResponse.java b/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationResponse.java
index 201bd5cd0..f079a5c3a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/FinishScaDeviceRegistrationResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class FinishScaDeviceRegistrationResponse {
   public static final String JSON_PROPERTY_SCA_DEVICE = "scaDevice";
   private ScaDevice scaDevice;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDevice = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public FinishScaDeviceRegistrationResponse() {}
 
   /**
@@ -34,6 +45,7 @@ public FinishScaDeviceRegistrationResponse() {}
    */
   public FinishScaDeviceRegistrationResponse scaDevice(ScaDevice scaDevice) {
     this.scaDevice = scaDevice;
+    isSetScaDevice = true; // mark as set
     return this;
   }
 
@@ -57,6 +69,27 @@ public ScaDevice getScaDevice() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDevice(ScaDevice scaDevice) {
     this.scaDevice = scaDevice;
+    isSetScaDevice = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public FinishScaDeviceRegistrationResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this FinishScaDeviceRegistrationResponse object is equal to o. */
@@ -97,6 +130,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetScaDevice) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE, this.scaDevice);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of FinishScaDeviceRegistrationResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/GetNetworkTokenResponse.java b/src/main/java/com/adyen/model/balanceplatform/GetNetworkTokenResponse.java
index a5b7260ca..9cae9c130 100644
--- a/src/main/java/com/adyen/model/balanceplatform/GetNetworkTokenResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/GetNetworkTokenResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class GetNetworkTokenResponse {
   public static final String JSON_PROPERTY_TOKEN = "token";
   private NetworkToken token;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetToken = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public GetNetworkTokenResponse() {}
 
   /**
@@ -33,6 +44,7 @@ public GetNetworkTokenResponse() {}
    */
   public GetNetworkTokenResponse token(NetworkToken token) {
     this.token = token;
+    isSetToken = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public NetworkToken getToken() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setToken(NetworkToken token) {
     this.token = token;
+    isSetToken = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public GetNetworkTokenResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this GetNetworkTokenResponse object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetToken) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN, this.token);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of GetNetworkTokenResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/GetTaxFormResponse.java b/src/main/java/com/adyen/model/balanceplatform/GetTaxFormResponse.java
index 3a8702c6c..4ceb91439 100644
--- a/src/main/java/com/adyen/model/balanceplatform/GetTaxFormResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/GetTaxFormResponse.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class GetTaxFormResponse {
   public static final String JSON_PROPERTY_CONTENT = "content";
   private byte[] content;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContent = false;
+
   /** The content type of the tax form. Possible values: * **application/pdf** */
   public enum ContentTypeEnum {
     APPLICATION_PDF(String.valueOf("application/pdf"));
@@ -72,6 +77,15 @@ public static ContentTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CONTENT_TYPE = "contentType";
   private ContentTypeEnum contentType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContentType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public GetTaxFormResponse() {}
 
   /**
@@ -82,6 +96,7 @@ public GetTaxFormResponse() {}
    */
   public GetTaxFormResponse content(byte[] content) {
     this.content = content;
+    isSetContent = true; // mark as set
     return this;
   }
 
@@ -105,6 +120,7 @@ public byte[] getContent() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContent(byte[] content) {
     this.content = content;
+    isSetContent = true; // mark as set
   }
 
   /**
@@ -115,6 +131,7 @@ public void setContent(byte[] content) {
    */
   public GetTaxFormResponse contentType(ContentTypeEnum contentType) {
     this.contentType = contentType;
+    isSetContentType = true; // mark as set
     return this;
   }
 
@@ -138,6 +155,27 @@ public ContentTypeEnum getContentType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContentType(ContentTypeEnum contentType) {
     this.contentType = contentType;
+    isSetContentType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public GetTaxFormResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this GetTaxFormResponse object is equal to o. */
@@ -179,6 +217,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetContent) {
+      addIfNull(nulls, JSON_PROPERTY_CONTENT, this.content);
+    }
+    if (isSetContentType) {
+      addIfNull(nulls, JSON_PROPERTY_CONTENT_TYPE, this.contentType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of GetTaxFormResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/GrantLimit.java b/src/main/java/com/adyen/model/balanceplatform/GrantLimit.java
index 3ca21beb3..e8d8d3fbe 100644
--- a/src/main/java/com/adyen/model/balanceplatform/GrantLimit.java
+++ b/src/main/java/com/adyen/model/balanceplatform/GrantLimit.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class GrantLimit {
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public GrantLimit() {}
 
   /**
@@ -33,6 +44,7 @@ public GrantLimit() {}
    */
   public GrantLimit amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public GrantLimit includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this GrantLimit object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of GrantLimit given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/GrantOffer.java b/src/main/java/com/adyen/model/balanceplatform/GrantOffer.java
index 533556a4b..cf355c215 100644
--- a/src/main/java/com/adyen/model/balanceplatform/GrantOffer.java
+++ b/src/main/java/com/adyen/model/balanceplatform/GrantOffer.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,9 +39,15 @@ public class GrantOffer {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDER_ID = "accountHolderId";
   private String accountHolderId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolderId = false;
+
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
   /** The contract type of the grant offer. Possible value: **cashAdvance**, **loan**. */
   public enum ContractTypeEnum {
     CASHADVANCE(String.valueOf("cashAdvance")),
@@ -84,21 +92,45 @@ public static ContractTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CONTRACT_TYPE = "contractType";
   private ContractTypeEnum contractType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetContractType = false;
+
   public static final String JSON_PROPERTY_EXPIRES_AT = "expiresAt";
   private OffsetDateTime expiresAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExpiresAt = false;
+
   public static final String JSON_PROPERTY_FEE = "fee";
   private Fee fee;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFee = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_REPAYMENT = "repayment";
   private Repayment repayment;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRepayment = false;
+
   public static final String JSON_PROPERTY_STARTS_AT = "startsAt";
   private OffsetDateTime startsAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartsAt = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public GrantOffer() {}
 
   /**
@@ -109,6 +141,7 @@ public GrantOffer() {}
    */
   public GrantOffer accountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
     return this;
   }
 
@@ -132,6 +165,7 @@ public String getAccountHolderId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolderId(String accountHolderId) {
     this.accountHolderId = accountHolderId;
+    isSetAccountHolderId = true; // mark as set
   }
 
   /**
@@ -142,6 +176,7 @@ public void setAccountHolderId(String accountHolderId) {
    */
   public GrantOffer amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -165,6 +200,7 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
   }
 
   /**
@@ -176,6 +212,7 @@ public void setAmount(Amount amount) {
    */
   public GrantOffer contractType(ContractTypeEnum contractType) {
     this.contractType = contractType;
+    isSetContractType = true; // mark as set
     return this;
   }
 
@@ -201,6 +238,7 @@ public ContractTypeEnum getContractType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setContractType(ContractTypeEnum contractType) {
     this.contractType = contractType;
+    isSetContractType = true; // mark as set
   }
 
   /**
@@ -211,6 +249,7 @@ public void setContractType(ContractTypeEnum contractType) {
    */
   public GrantOffer expiresAt(OffsetDateTime expiresAt) {
     this.expiresAt = expiresAt;
+    isSetExpiresAt = true; // mark as set
     return this;
   }
 
@@ -234,6 +273,7 @@ public OffsetDateTime getExpiresAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setExpiresAt(OffsetDateTime expiresAt) {
     this.expiresAt = expiresAt;
+    isSetExpiresAt = true; // mark as set
   }
 
   /**
@@ -244,6 +284,7 @@ public void setExpiresAt(OffsetDateTime expiresAt) {
    */
   public GrantOffer fee(Fee fee) {
     this.fee = fee;
+    isSetFee = true; // mark as set
     return this;
   }
 
@@ -267,6 +308,7 @@ public Fee getFee() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFee(Fee fee) {
     this.fee = fee;
+    isSetFee = true; // mark as set
   }
 
   /**
@@ -277,6 +319,7 @@ public void setFee(Fee fee) {
    */
   public GrantOffer id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -300,6 +343,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -310,6 +354,7 @@ public void setId(String id) {
    */
   public GrantOffer repayment(Repayment repayment) {
     this.repayment = repayment;
+    isSetRepayment = true; // mark as set
     return this;
   }
 
@@ -333,6 +378,7 @@ public Repayment getRepayment() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRepayment(Repayment repayment) {
     this.repayment = repayment;
+    isSetRepayment = true; // mark as set
   }
 
   /**
@@ -343,6 +389,7 @@ public void setRepayment(Repayment repayment) {
    */
   public GrantOffer startsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
     return this;
   }
 
@@ -366,6 +413,27 @@ public OffsetDateTime getStartsAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public GrantOffer includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this GrantOffer object is equal to o. */
@@ -420,6 +488,51 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolderId) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDER_ID, this.accountHolderId);
+    }
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+    if (isSetContractType) {
+      addIfNull(nulls, JSON_PROPERTY_CONTRACT_TYPE, this.contractType);
+    }
+    if (isSetExpiresAt) {
+      addIfNull(nulls, JSON_PROPERTY_EXPIRES_AT, this.expiresAt);
+    }
+    if (isSetFee) {
+      addIfNull(nulls, JSON_PROPERTY_FEE, this.fee);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetRepayment) {
+      addIfNull(nulls, JSON_PROPERTY_REPAYMENT, this.repayment);
+    }
+    if (isSetStartsAt) {
+      addIfNull(nulls, JSON_PROPERTY_STARTS_AT, this.startsAt);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of GrantOffer given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/GrantOffers.java b/src/main/java/com/adyen/model/balanceplatform/GrantOffers.java
index 31a8f8664..b6ea162f1 100644
--- a/src/main/java/com/adyen/model/balanceplatform/GrantOffers.java
+++ b/src/main/java/com/adyen/model/balanceplatform/GrantOffers.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class GrantOffers {
   public static final String JSON_PROPERTY_GRANT_OFFERS = "grantOffers";
   private List<GrantOffer> grantOffers;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetGrantOffers = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public GrantOffers() {}
 
   /**
@@ -35,6 +46,7 @@ public GrantOffers() {}
    */
   public GrantOffers grantOffers(List<GrantOffer> grantOffers) {
     this.grantOffers = grantOffers;
+    isSetGrantOffers = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<GrantOffer> getGrantOffers() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setGrantOffers(List<GrantOffer> grantOffers) {
     this.grantOffers = grantOffers;
+    isSetGrantOffers = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public GrantOffers includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this GrantOffers object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetGrantOffers) {
+      addIfNull(nulls, JSON_PROPERTY_GRANT_OFFERS, this.grantOffers);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of GrantOffers given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/HKLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/HKLocalAccountIdentification.java
index 1b30947e2..1192dbea7 100644
--- a/src/main/java/com/adyen/model/balanceplatform/HKLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/HKLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class HKLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_CLEARING_CODE = "clearingCode";
   private String clearingCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetClearingCode = false;
+
   /** **hkLocal** */
   public enum TypeEnum {
     HKLOCAL(String.valueOf("hkLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public HKLocalAccountIdentification() {}
 
   /**
@@ -88,6 +105,7 @@ public HKLocalAccountIdentification() {}
    */
   public HKLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -115,6 +133,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -125,6 +144,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public HKLocalAccountIdentification clearingCode(String clearingCode) {
     this.clearingCode = clearingCode;
+    isSetClearingCode = true; // mark as set
     return this;
   }
 
@@ -148,6 +168,7 @@ public String getClearingCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setClearingCode(String clearingCode) {
     this.clearingCode = clearingCode;
+    isSetClearingCode = true; // mark as set
   }
 
   /**
@@ -158,6 +179,7 @@ public void setClearingCode(String clearingCode) {
    */
   public HKLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -181,6 +203,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public HKLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this HKLocalAccountIdentification object is equal to o. */
@@ -224,6 +267,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetClearingCode) {
+      addIfNull(nulls, JSON_PROPERTY_CLEARING_CODE, this.clearingCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of HKLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/HULocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/HULocalAccountIdentification.java
index 5683cbc72..dd013c83c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/HULocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/HULocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class HULocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /** **huLocal** */
   public enum TypeEnum {
     HULOCAL(String.valueOf("huLocal"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public HULocalAccountIdentification() {}
 
   /**
@@ -82,6 +96,7 @@ public HULocalAccountIdentification() {}
    */
   public HULocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -105,6 +120,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -115,6 +131,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public HULocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -138,6 +155,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public HULocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this HULocalAccountIdentification object is equal to o. */
@@ -179,6 +217,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of HULocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Href.java b/src/main/java/com/adyen/model/balanceplatform/Href.java
index c228ee0e0..fd87d96a8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Href.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Href.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class Href {
   public static final String JSON_PROPERTY_HREF = "href";
   private String href;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHref = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Href() {}
 
   /**
@@ -33,6 +44,7 @@ public Href() {}
    */
   public Href href(String href) {
     this.href = href;
+    isSetHref = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public String getHref() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHref(String href) {
     this.href = href;
+    isSetHref = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Href includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Href object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetHref) {
+      addIfNull(nulls, JSON_PROPERTY_HREF, this.href);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Href given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentification.java
index 19889943a..47e0bf4a8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class IbanAccountIdentification {
   public static final String JSON_PROPERTY_IBAN = "iban";
   private String iban;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIban = false;
+
   /** **iban** */
   public enum TypeEnum {
     IBAN(String.valueOf("iban"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public IbanAccountIdentification() {}
 
   /**
@@ -84,6 +98,7 @@ public IbanAccountIdentification() {}
    */
   public IbanAccountIdentification iban(String iban) {
     this.iban = iban;
+    isSetIban = true; // mark as set
     return this;
   }
 
@@ -111,6 +126,7 @@ public String getIban() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIban(String iban) {
     this.iban = iban;
+    isSetIban = true; // mark as set
   }
 
   /**
@@ -121,6 +137,7 @@ public void setIban(String iban) {
    */
   public IbanAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -144,6 +161,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public IbanAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this IbanAccountIdentification object is equal to o. */
@@ -185,6 +223,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetIban) {
+      addIfNull(nulls, JSON_PROPERTY_IBAN, this.iban);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of IbanAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentificationRequirement.java b/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentificationRequirement.java
index f0747e208..0cac86a94 100644
--- a/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentificationRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/IbanAccountIdentificationRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,9 +35,15 @@ public class IbanAccountIdentificationRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_IBAN_PREFIXES = "ibanPrefixes";
   private List<String> ibanPrefixes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIbanPrefixes = false;
+
   /** **ibanAccountIdentificationRequirement** */
   public enum TypeEnum {
     IBANACCOUNTIDENTIFICATIONREQUIREMENT(String.valueOf("ibanAccountIdentificationRequirement"));
@@ -78,6 +86,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public IbanAccountIdentificationRequirement() {}
 
   /**
@@ -91,6 +108,7 @@ public IbanAccountIdentificationRequirement() {}
    */
   public IbanAccountIdentificationRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -118,6 +136,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -130,6 +149,7 @@ public void setDescription(String description) {
    */
   public IbanAccountIdentificationRequirement ibanPrefixes(List<String> ibanPrefixes) {
     this.ibanPrefixes = ibanPrefixes;
+    isSetIbanPrefixes = true; // mark as set
     return this;
   }
 
@@ -163,6 +183,7 @@ public List<String> getIbanPrefixes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIbanPrefixes(List<String> ibanPrefixes) {
     this.ibanPrefixes = ibanPrefixes;
+    isSetIbanPrefixes = true; // mark as set
   }
 
   /**
@@ -174,6 +195,7 @@ public void setIbanPrefixes(List<String> ibanPrefixes) {
    */
   public IbanAccountIdentificationRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -197,6 +219,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public IbanAccountIdentificationRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this IbanAccountIdentificationRequirement object is equal to o. */
@@ -241,6 +284,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetIbanPrefixes) {
+      addIfNull(nulls, JSON_PROPERTY_IBAN_PREFIXES, this.ibanPrefixes);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of IbanAccountIdentificationRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/InternationalTransactionRestriction.java b/src/main/java/com/adyen/model/balanceplatform/InternationalTransactionRestriction.java
index 00236b240..f859327dc 100644
--- a/src/main/java/com/adyen/model/balanceplatform/InternationalTransactionRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/InternationalTransactionRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class InternationalTransactionRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Boolean value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public InternationalTransactionRestriction() {}
 
   /**
@@ -40,6 +54,7 @@ public InternationalTransactionRestriction() {}
    */
   public InternationalTransactionRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -78,6 +94,7 @@ public void setOperation(String operation) {
    */
   public InternationalTransactionRestriction value(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -109,6 +126,27 @@ public Boolean getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public InternationalTransactionRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this InternationalTransactionRestriction object is equal to o. */
@@ -151,6 +189,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of InternationalTransactionRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/InvalidField.java b/src/main/java/com/adyen/model/balanceplatform/InvalidField.java
index 3d7f8e77f..06ae52514 100644
--- a/src/main/java/com/adyen/model/balanceplatform/InvalidField.java
+++ b/src/main/java/com/adyen/model/balanceplatform/InvalidField.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class InvalidField {
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private String value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
   public static final String JSON_PROPERTY_MESSAGE = "message";
   private String message;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMessage = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public InvalidField() {}
 
   /**
@@ -43,6 +60,7 @@ public InvalidField() {}
    */
   public InvalidField name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -66,6 +84,7 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -76,6 +95,7 @@ public void setName(String name) {
    */
   public InvalidField value(String value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -99,6 +119,7 @@ public String getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(String value) {
     this.value = value;
+    isSetValue = true; // mark as set
   }
 
   /**
@@ -109,6 +130,7 @@ public void setValue(String value) {
    */
   public InvalidField message(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
     return this;
   }
 
@@ -132,6 +154,27 @@ public String getMessage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMessage(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public InvalidField includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this InvalidField object is equal to o. */
@@ -175,6 +218,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+    if (isSetMessage) {
+      addIfNull(nulls, JSON_PROPERTY_MESSAGE, this.message);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of InvalidField given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Link.java b/src/main/java/com/adyen/model/balanceplatform/Link.java
index b8be30eab..d47d0ec15 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Link.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Link.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,18 +31,39 @@ public class Link {
   public static final String JSON_PROPERTY_FIRST = "first";
   private Href first;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFirst = false;
+
   public static final String JSON_PROPERTY_LAST = "last";
   private Href last;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLast = false;
+
   public static final String JSON_PROPERTY_NEXT = "next";
   private Href next;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetNext = false;
+
   public static final String JSON_PROPERTY_PREVIOUS = "previous";
   private Href previous;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPrevious = false;
+
   public static final String JSON_PROPERTY_SELF = "self";
   private Href self;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSelf = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Link() {}
 
   /**
@@ -51,6 +74,7 @@ public Link() {}
    */
   public Link first(Href first) {
     this.first = first;
+    isSetFirst = true; // mark as set
     return this;
   }
 
@@ -74,6 +98,7 @@ public Href getFirst() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFirst(Href first) {
     this.first = first;
+    isSetFirst = true; // mark as set
   }
 
   /**
@@ -84,6 +109,7 @@ public void setFirst(Href first) {
    */
   public Link last(Href last) {
     this.last = last;
+    isSetLast = true; // mark as set
     return this;
   }
 
@@ -107,6 +133,7 @@ public Href getLast() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLast(Href last) {
     this.last = last;
+    isSetLast = true; // mark as set
   }
 
   /**
@@ -117,6 +144,7 @@ public void setLast(Href last) {
    */
   public Link next(Href next) {
     this.next = next;
+    isSetNext = true; // mark as set
     return this;
   }
 
@@ -140,6 +168,7 @@ public Href getNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setNext(Href next) {
     this.next = next;
+    isSetNext = true; // mark as set
   }
 
   /**
@@ -150,6 +179,7 @@ public void setNext(Href next) {
    */
   public Link previous(Href previous) {
     this.previous = previous;
+    isSetPrevious = true; // mark as set
     return this;
   }
 
@@ -173,6 +203,7 @@ public Href getPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPrevious(Href previous) {
     this.previous = previous;
+    isSetPrevious = true; // mark as set
   }
 
   /**
@@ -183,6 +214,7 @@ public void setPrevious(Href previous) {
    */
   public Link self(Href self) {
     this.self = self;
+    isSetSelf = true; // mark as set
     return this;
   }
 
@@ -206,6 +238,27 @@ public Href getSelf() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSelf(Href self) {
     this.self = self;
+    isSetSelf = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Link includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Link object is equal to o. */
@@ -253,6 +306,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetFirst) {
+      addIfNull(nulls, JSON_PROPERTY_FIRST, this.first);
+    }
+    if (isSetLast) {
+      addIfNull(nulls, JSON_PROPERTY_LAST, this.last);
+    }
+    if (isSetNext) {
+      addIfNull(nulls, JSON_PROPERTY_NEXT, this.next);
+    }
+    if (isSetPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_PREVIOUS, this.previous);
+    }
+    if (isSetSelf) {
+      addIfNull(nulls, JSON_PROPERTY_SELF, this.self);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Link given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ListAssociationsResponse.java b/src/main/java/com/adyen/model/balanceplatform/ListAssociationsResponse.java
index 8b2f837fa..5f28e7243 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ListAssociationsResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ListAssociationsResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,15 +32,33 @@ public class ListAssociationsResponse {
   public static final String JSON_PROPERTY_LINKS = "_links";
   private Link links;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLinks = false;
+
   public static final String JSON_PROPERTY_DATA = "data";
   private List<AssociationListing> data;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetData = false;
+
   public static final String JSON_PROPERTY_ITEMS_TOTAL = "itemsTotal";
   private Integer itemsTotal;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetItemsTotal = false;
+
   public static final String JSON_PROPERTY_PAGES_TOTAL = "pagesTotal";
   private Integer pagesTotal;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPagesTotal = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ListAssociationsResponse() {}
 
   /**
@@ -49,6 +69,7 @@ public ListAssociationsResponse() {}
    */
   public ListAssociationsResponse links(Link links) {
     this.links = links;
+    isSetLinks = true; // mark as set
     return this;
   }
 
@@ -72,6 +93,7 @@ public Link getLinks() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLinks(Link links) {
     this.links = links;
+    isSetLinks = true; // mark as set
   }
 
   /**
@@ -82,6 +104,7 @@ public void setLinks(Link links) {
    */
   public ListAssociationsResponse data(List<AssociationListing> data) {
     this.data = data;
+    isSetData = true; // mark as set
     return this;
   }
 
@@ -113,6 +136,7 @@ public List<AssociationListing> getData() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setData(List<AssociationListing> data) {
     this.data = data;
+    isSetData = true; // mark as set
   }
 
   /**
@@ -123,6 +147,7 @@ public void setData(List<AssociationListing> data) {
    */
   public ListAssociationsResponse itemsTotal(Integer itemsTotal) {
     this.itemsTotal = itemsTotal;
+    isSetItemsTotal = true; // mark as set
     return this;
   }
 
@@ -146,6 +171,7 @@ public Integer getItemsTotal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setItemsTotal(Integer itemsTotal) {
     this.itemsTotal = itemsTotal;
+    isSetItemsTotal = true; // mark as set
   }
 
   /**
@@ -156,6 +182,7 @@ public void setItemsTotal(Integer itemsTotal) {
    */
   public ListAssociationsResponse pagesTotal(Integer pagesTotal) {
     this.pagesTotal = pagesTotal;
+    isSetPagesTotal = true; // mark as set
     return this;
   }
 
@@ -179,6 +206,27 @@ public Integer getPagesTotal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPagesTotal(Integer pagesTotal) {
     this.pagesTotal = pagesTotal;
+    isSetPagesTotal = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ListAssociationsResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ListAssociationsResponse object is equal to o. */
@@ -224,6 +272,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetLinks) {
+      addIfNull(nulls, JSON_PROPERTY_LINKS, this.links);
+    }
+    if (isSetData) {
+      addIfNull(nulls, JSON_PROPERTY_DATA, this.data);
+    }
+    if (isSetItemsTotal) {
+      addIfNull(nulls, JSON_PROPERTY_ITEMS_TOTAL, this.itemsTotal);
+    }
+    if (isSetPagesTotal) {
+      addIfNull(nulls, JSON_PROPERTY_PAGES_TOTAL, this.pagesTotal);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ListAssociationsResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ListNetworkTokensResponse.java b/src/main/java/com/adyen/model/balanceplatform/ListNetworkTokensResponse.java
index fb3fe0ebb..b587da39b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ListNetworkTokensResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ListNetworkTokensResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class ListNetworkTokensResponse {
   public static final String JSON_PROPERTY_NETWORK_TOKENS = "networkTokens";
   private List<NetworkToken> networkTokens;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetNetworkTokens = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ListNetworkTokensResponse() {}
 
   /**
@@ -35,6 +46,7 @@ public ListNetworkTokensResponse() {}
    */
   public ListNetworkTokensResponse networkTokens(List<NetworkToken> networkTokens) {
     this.networkTokens = networkTokens;
+    isSetNetworkTokens = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<NetworkToken> getNetworkTokens() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setNetworkTokens(List<NetworkToken> networkTokens) {
     this.networkTokens = networkTokens;
+    isSetNetworkTokens = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ListNetworkTokensResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ListNetworkTokensResponse object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetNetworkTokens) {
+      addIfNull(nulls, JSON_PROPERTY_NETWORK_TOKENS, this.networkTokens);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ListNetworkTokensResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MatchingTransactionsRestriction.java b/src/main/java/com/adyen/model/balanceplatform/MatchingTransactionsRestriction.java
index afe47fe42..163375624 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MatchingTransactionsRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MatchingTransactionsRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class MatchingTransactionsRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Integer value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MatchingTransactionsRestriction() {}
 
   /**
@@ -40,6 +54,7 @@ public MatchingTransactionsRestriction() {}
    */
   public MatchingTransactionsRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public MatchingTransactionsRestriction value(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -97,6 +114,27 @@ public Integer getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MatchingTransactionsRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MatchingTransactionsRestriction object is equal to o. */
@@ -139,6 +177,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MatchingTransactionsRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MatchingValuesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/MatchingValuesRestriction.java
index fead0fb06..2f7cc4dc0 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MatchingValuesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MatchingValuesRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class MatchingValuesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     ACQUIRERID(String.valueOf("acquirerId")),
@@ -82,6 +87,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MatchingValuesRestriction() {}
 
   /**
@@ -92,6 +106,7 @@ public MatchingValuesRestriction() {}
    */
   public MatchingValuesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -115,6 +130,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -125,6 +141,7 @@ public void setOperation(String operation) {
    */
   public MatchingValuesRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -156,6 +173,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MatchingValuesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MatchingValuesRestriction object is equal to o. */
@@ -197,6 +235,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MatchingValuesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MccsRestriction.java b/src/main/java/com/adyen/model/balanceplatform/MccsRestriction.java
index ad2ef17c7..382827fa3 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MccsRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MccsRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,9 +27,21 @@ public class MccsRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<String> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MccsRestriction() {}
 
   /**
@@ -38,6 +52,7 @@ public MccsRestriction() {}
    */
   public MccsRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -61,6 +76,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -71,6 +87,7 @@ public void setOperation(String operation) {
    */
   public MccsRestriction value(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -102,6 +119,27 @@ public List<String> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MccsRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MccsRestriction object is equal to o. */
@@ -143,6 +181,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MccsRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MerchantAcquirerPair.java b/src/main/java/com/adyen/model/balanceplatform/MerchantAcquirerPair.java
index 96533ff3e..d8c3448eb 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MerchantAcquirerPair.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MerchantAcquirerPair.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class MerchantAcquirerPair {
   public static final String JSON_PROPERTY_ACQUIRER_ID = "acquirerId";
   private String acquirerId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAcquirerId = false;
+
   public static final String JSON_PROPERTY_MERCHANT_ID = "merchantId";
   private String merchantId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMerchantId = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MerchantAcquirerPair() {}
 
   /**
@@ -39,6 +53,7 @@ public MerchantAcquirerPair() {}
    */
   public MerchantAcquirerPair acquirerId(String acquirerId) {
     this.acquirerId = acquirerId;
+    isSetAcquirerId = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getAcquirerId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAcquirerId(String acquirerId) {
     this.acquirerId = acquirerId;
+    isSetAcquirerId = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setAcquirerId(String acquirerId) {
    */
   public MerchantAcquirerPair merchantId(String merchantId) {
     this.merchantId = merchantId;
+    isSetMerchantId = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public String getMerchantId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMerchantId(String merchantId) {
     this.merchantId = merchantId;
+    isSetMerchantId = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MerchantAcquirerPair includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MerchantAcquirerPair object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAcquirerId) {
+      addIfNull(nulls, JSON_PROPERTY_ACQUIRER_ID, this.acquirerId);
+    }
+    if (isSetMerchantId) {
+      addIfNull(nulls, JSON_PROPERTY_MERCHANT_ID, this.merchantId);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MerchantAcquirerPair given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MerchantNamesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/MerchantNamesRestriction.java
index c9224bdac..b11938386 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MerchantNamesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MerchantNamesRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class MerchantNamesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<StringMatch> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MerchantNamesRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public MerchantNamesRestriction() {}
    */
   public MerchantNamesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public MerchantNamesRestriction value(List<StringMatch> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -105,6 +122,27 @@ public List<StringMatch> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<StringMatch> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MerchantNamesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MerchantNamesRestriction object is equal to o. */
@@ -146,6 +184,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MerchantNamesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/MerchantsRestriction.java b/src/main/java/com/adyen/model/balanceplatform/MerchantsRestriction.java
index b65cbd58d..73b71a48e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/MerchantsRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/MerchantsRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class MerchantsRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<MerchantAcquirerPair> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public MerchantsRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public MerchantsRestriction() {}
    */
   public MerchantsRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public MerchantsRestriction value(List<MerchantAcquirerPair> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -105,6 +122,27 @@ public List<MerchantAcquirerPair> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<MerchantAcquirerPair> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public MerchantsRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this MerchantsRestriction object is equal to o. */
@@ -146,6 +184,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of MerchantsRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NOLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/NOLocalAccountIdentification.java
index 764bfed0a..d6ca1f7c0 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NOLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NOLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class NOLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /** **noLocal** */
   public enum TypeEnum {
     NOLOCAL(String.valueOf("noLocal"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NOLocalAccountIdentification() {}
 
   /**
@@ -82,6 +96,7 @@ public NOLocalAccountIdentification() {}
    */
   public NOLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -105,6 +120,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -115,6 +131,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public NOLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -138,6 +155,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NOLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NOLocalAccountIdentification object is equal to o. */
@@ -179,6 +217,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NOLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NZLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/NZLocalAccountIdentification.java
index 83606b6c9..c3e1c4a9f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NZLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NZLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class NZLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /** **nzLocal** */
   public enum TypeEnum {
     NZLOCAL(String.valueOf("nzLocal"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NZLocalAccountIdentification() {}
 
   /**
@@ -86,6 +100,7 @@ public NZLocalAccountIdentification() {}
    */
   public NZLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -117,6 +132,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -127,6 +143,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public NZLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -150,6 +167,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NZLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NZLocalAccountIdentification object is equal to o. */
@@ -191,6 +229,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NZLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Name.java b/src/main/java/com/adyen/model/balanceplatform/Name.java
index 66e9d37aa..9f8b1b4db 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Name.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Name.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class Name {
   public static final String JSON_PROPERTY_FIRST_NAME = "firstName";
   private String firstName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetFirstName = false;
+
   public static final String JSON_PROPERTY_LAST_NAME = "lastName";
   private String lastName;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLastName = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Name() {}
 
   /**
@@ -36,6 +50,7 @@ public Name() {}
    */
   public Name firstName(String firstName) {
     this.firstName = firstName;
+    isSetFirstName = true; // mark as set
     return this;
   }
 
@@ -59,6 +74,7 @@ public String getFirstName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setFirstName(String firstName) {
     this.firstName = firstName;
+    isSetFirstName = true; // mark as set
   }
 
   /**
@@ -69,6 +85,7 @@ public void setFirstName(String firstName) {
    */
   public Name lastName(String lastName) {
     this.lastName = lastName;
+    isSetLastName = true; // mark as set
     return this;
   }
 
@@ -92,6 +109,27 @@ public String getLastName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLastName(String lastName) {
     this.lastName = lastName;
+    isSetLastName = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Name includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Name object is equal to o. */
@@ -133,6 +171,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetFirstName) {
+      addIfNull(nulls, JSON_PROPERTY_FIRST_NAME, this.firstName);
+    }
+    if (isSetLastName) {
+      addIfNull(nulls, JSON_PROPERTY_LAST_NAME, this.lastName);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Name given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NetworkToken.java b/src/main/java/com/adyen/model/balanceplatform/NetworkToken.java
index 10a5f39d0..e6e2216fc 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NetworkToken.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NetworkToken.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -38,18 +40,33 @@ public class NetworkToken {
   public static final String JSON_PROPERTY_BRAND_VARIANT = "brandVariant";
   private String brandVariant;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrandVariant = false;
+
   public static final String JSON_PROPERTY_CREATION_DATE = "creationDate";
   private OffsetDateTime creationDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCreationDate = false;
+
   public static final String JSON_PROPERTY_DEVICE = "device";
   private DeviceInfo device;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDevice = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   /**
    * The status of the network token. Possible values: **active**, **inactive**, **suspended**,
    * **closed**.
@@ -101,15 +118,33 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TOKEN_LAST_FOUR = "tokenLastFour";
   private String tokenLastFour;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTokenLastFour = false;
+
   public static final String JSON_PROPERTY_TOKEN_REQUESTOR = "tokenRequestor";
   private NetworkTokenRequestor tokenRequestor;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTokenRequestor = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private String type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NetworkToken() {}
 
   /**
@@ -122,6 +157,7 @@ public NetworkToken() {}
    */
   public NetworkToken brandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
     return this;
   }
 
@@ -149,6 +185,7 @@ public String getBrandVariant() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrandVariant(String brandVariant) {
     this.brandVariant = brandVariant;
+    isSetBrandVariant = true; // mark as set
   }
 
   /**
@@ -163,6 +200,7 @@ public void setBrandVariant(String brandVariant) {
    */
   public NetworkToken creationDate(OffsetDateTime creationDate) {
     this.creationDate = creationDate;
+    isSetCreationDate = true; // mark as set
     return this;
   }
 
@@ -194,6 +232,7 @@ public OffsetDateTime getCreationDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCreationDate(OffsetDateTime creationDate) {
     this.creationDate = creationDate;
+    isSetCreationDate = true; // mark as set
   }
 
   /**
@@ -204,6 +243,7 @@ public void setCreationDate(OffsetDateTime creationDate) {
    */
   public NetworkToken device(DeviceInfo device) {
     this.device = device;
+    isSetDevice = true; // mark as set
     return this;
   }
 
@@ -227,6 +267,7 @@ public DeviceInfo getDevice() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDevice(DeviceInfo device) {
     this.device = device;
+    isSetDevice = true; // mark as set
   }
 
   /**
@@ -237,6 +278,7 @@ public void setDevice(DeviceInfo device) {
    */
   public NetworkToken id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -260,6 +302,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -271,6 +314,7 @@ public void setId(String id) {
    */
   public NetworkToken paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -296,6 +340,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -308,6 +353,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
    */
   public NetworkToken status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -335,6 +381,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -345,6 +392,7 @@ public void setStatus(StatusEnum status) {
    */
   public NetworkToken tokenLastFour(String tokenLastFour) {
     this.tokenLastFour = tokenLastFour;
+    isSetTokenLastFour = true; // mark as set
     return this;
   }
 
@@ -368,6 +416,7 @@ public String getTokenLastFour() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTokenLastFour(String tokenLastFour) {
     this.tokenLastFour = tokenLastFour;
+    isSetTokenLastFour = true; // mark as set
   }
 
   /**
@@ -378,6 +427,7 @@ public void setTokenLastFour(String tokenLastFour) {
    */
   public NetworkToken tokenRequestor(NetworkTokenRequestor tokenRequestor) {
     this.tokenRequestor = tokenRequestor;
+    isSetTokenRequestor = true; // mark as set
     return this;
   }
 
@@ -401,6 +451,7 @@ public NetworkTokenRequestor getTokenRequestor() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTokenRequestor(NetworkTokenRequestor tokenRequestor) {
     this.tokenRequestor = tokenRequestor;
+    isSetTokenRequestor = true; // mark as set
   }
 
   /**
@@ -411,6 +462,7 @@ public void setTokenRequestor(NetworkTokenRequestor tokenRequestor) {
    */
   public NetworkToken type(String type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -434,6 +486,27 @@ public String getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(String type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NetworkToken includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NetworkToken object is equal to o. */
@@ -500,6 +573,54 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBrandVariant) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND_VARIANT, this.brandVariant);
+    }
+    if (isSetCreationDate) {
+      addIfNull(nulls, JSON_PROPERTY_CREATION_DATE, this.creationDate);
+    }
+    if (isSetDevice) {
+      addIfNull(nulls, JSON_PROPERTY_DEVICE, this.device);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTokenLastFour) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN_LAST_FOUR, this.tokenLastFour);
+    }
+    if (isSetTokenRequestor) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN_REQUESTOR, this.tokenRequestor);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NetworkToken given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataRequest.java b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataRequest.java
index 33a0c67e4..3ab5eb8be 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class NetworkTokenActivationDataRequest {
   public static final String JSON_PROPERTY_SDK_OUTPUT = "sdkOutput";
   private String sdkOutput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkOutput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NetworkTokenActivationDataRequest() {}
 
   /**
@@ -43,6 +54,7 @@ public NetworkTokenActivationDataRequest() {}
    */
   public NetworkTokenActivationDataRequest sdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
     return this;
   }
 
@@ -84,6 +96,27 @@ public String getSdkOutput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkOutput(String sdkOutput) {
     this.sdkOutput = sdkOutput;
+    isSetSdkOutput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NetworkTokenActivationDataRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NetworkTokenActivationDataRequest object is equal to o. */
@@ -124,6 +157,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkOutput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_OUTPUT, this.sdkOutput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NetworkTokenActivationDataRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataResponse.java b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataResponse.java
index 27bd58cba..b0a6ede0c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenActivationDataResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class NetworkTokenActivationDataResponse {
   public static final String JSON_PROPERTY_SDK_INPUT = "sdkInput";
   private String sdkInput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkInput = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NetworkTokenActivationDataResponse() {}
 
   /**
@@ -44,6 +55,7 @@ public NetworkTokenActivationDataResponse() {}
    */
   public NetworkTokenActivationDataResponse sdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
     return this;
   }
 
@@ -87,6 +99,27 @@ public String getSdkInput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NetworkTokenActivationDataResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NetworkTokenActivationDataResponse object is equal to o. */
@@ -127,6 +160,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSdkInput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_INPUT, this.sdkInput);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NetworkTokenActivationDataResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenRequestor.java b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenRequestor.java
index 0949bb0a0..7195b7e40 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NetworkTokenRequestor.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NetworkTokenRequestor.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class NetworkTokenRequestor {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NetworkTokenRequestor() {}
 
   /**
@@ -39,6 +53,7 @@ public NetworkTokenRequestor() {}
    */
   public NetworkTokenRequestor id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setId(String id) {
    */
   public NetworkTokenRequestor name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NetworkTokenRequestor includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NetworkTokenRequestor object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NetworkTokenRequestor given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/NumberAndBicAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/NumberAndBicAccountIdentification.java
index fba8b6740..1c2d94e20 100644
--- a/src/main/java/com/adyen/model/balanceplatform/NumberAndBicAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/NumberAndBicAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,13 +34,22 @@ public class NumberAndBicAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_ADDITIONAL_BANK_IDENTIFICATION =
       "additionalBankIdentification";
   private AdditionalBankIdentification additionalBankIdentification;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAdditionalBankIdentification = false;
+
   public static final String JSON_PROPERTY_BIC = "bic";
   private String bic;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBic = false;
+
   /** **numberAndBic** */
   public enum TypeEnum {
     NUMBERANDBIC(String.valueOf("numberAndBic"));
@@ -81,6 +92,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public NumberAndBicAccountIdentification() {}
 
   /**
@@ -94,6 +114,7 @@ public NumberAndBicAccountIdentification() {}
    */
   public NumberAndBicAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -121,6 +142,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -133,6 +155,7 @@ public void setAccountNumber(String accountNumber) {
   public NumberAndBicAccountIdentification additionalBankIdentification(
       AdditionalBankIdentification additionalBankIdentification) {
     this.additionalBankIdentification = additionalBankIdentification;
+    isSetAdditionalBankIdentification = true; // mark as set
     return this;
   }
 
@@ -157,6 +180,7 @@ public AdditionalBankIdentification getAdditionalBankIdentification() {
   public void setAdditionalBankIdentification(
       AdditionalBankIdentification additionalBankIdentification) {
     this.additionalBankIdentification = additionalBankIdentification;
+    isSetAdditionalBankIdentification = true; // mark as set
   }
 
   /**
@@ -168,6 +192,7 @@ public void setAdditionalBankIdentification(
    */
   public NumberAndBicAccountIdentification bic(String bic) {
     this.bic = bic;
+    isSetBic = true; // mark as set
     return this;
   }
 
@@ -191,6 +216,7 @@ public String getBic() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBic(String bic) {
     this.bic = bic;
+    isSetBic = true; // mark as set
   }
 
   /**
@@ -202,6 +228,7 @@ public void setBic(String bic) {
    */
   public NumberAndBicAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -225,6 +252,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public NumberAndBicAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this NumberAndBicAccountIdentification object is equal to o. */
@@ -275,6 +323,40 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetAdditionalBankIdentification) {
+      addIfNull(
+          nulls, JSON_PROPERTY_ADDITIONAL_BANK_IDENTIFICATION, this.additionalBankIdentification);
+    }
+    if (isSetBic) {
+      addIfNull(nulls, JSON_PROPERTY_BIC, this.bic);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of NumberAndBicAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PLLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/PLLocalAccountIdentification.java
index fb7880c65..57407a312 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PLLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PLLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class PLLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /** **plLocal** */
   public enum TypeEnum {
     PLLOCAL(String.valueOf("plLocal"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PLLocalAccountIdentification() {}
 
   /**
@@ -86,6 +100,7 @@ public PLLocalAccountIdentification() {}
    */
   public PLLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -117,6 +132,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -127,6 +143,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public PLLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -150,6 +167,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PLLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PLLocalAccountIdentification object is equal to o. */
@@ -191,6 +229,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PLLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaginatedAccountHoldersResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaginatedAccountHoldersResponse.java
index 9453624ea..a5c6abd3c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaginatedAccountHoldersResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaginatedAccountHoldersResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class PaginatedAccountHoldersResponse {
   public static final String JSON_PROPERTY_ACCOUNT_HOLDERS = "accountHolders";
   private List<AccountHolder> accountHolders;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountHolders = false;
+
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaginatedAccountHoldersResponse() {}
 
   /**
@@ -46,6 +63,7 @@ public PaginatedAccountHoldersResponse() {}
    */
   public PaginatedAccountHoldersResponse accountHolders(List<AccountHolder> accountHolders) {
     this.accountHolders = accountHolders;
+    isSetAccountHolders = true; // mark as set
     return this;
   }
 
@@ -77,6 +95,7 @@ public List<AccountHolder> getAccountHolders() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountHolders(List<AccountHolder> accountHolders) {
     this.accountHolders = accountHolders;
+    isSetAccountHolders = true; // mark as set
   }
 
   /**
@@ -88,6 +107,7 @@ public void setAccountHolders(List<AccountHolder> accountHolders) {
    */
   public PaginatedAccountHoldersResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -111,6 +131,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -122,6 +143,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public PaginatedAccountHoldersResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -145,6 +167,27 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaginatedAccountHoldersResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaginatedAccountHoldersResponse object is equal to o. */
@@ -189,6 +232,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountHolders) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_HOLDERS, this.accountHolders);
+    }
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaginatedAccountHoldersResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaginatedBalanceAccountsResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaginatedBalanceAccountsResponse.java
index 34c37f969..c975436f5 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaginatedBalanceAccountsResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaginatedBalanceAccountsResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class PaginatedBalanceAccountsResponse {
   public static final String JSON_PROPERTY_BALANCE_ACCOUNTS = "balanceAccounts";
   private List<BalanceAccountBase> balanceAccounts;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccounts = false;
+
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaginatedBalanceAccountsResponse() {}
 
   /**
@@ -47,6 +64,7 @@ public PaginatedBalanceAccountsResponse() {}
   public PaginatedBalanceAccountsResponse balanceAccounts(
       List<BalanceAccountBase> balanceAccounts) {
     this.balanceAccounts = balanceAccounts;
+    isSetBalanceAccounts = true; // mark as set
     return this;
   }
 
@@ -79,6 +97,7 @@ public List<BalanceAccountBase> getBalanceAccounts() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccounts(List<BalanceAccountBase> balanceAccounts) {
     this.balanceAccounts = balanceAccounts;
+    isSetBalanceAccounts = true; // mark as set
   }
 
   /**
@@ -90,6 +109,7 @@ public void setBalanceAccounts(List<BalanceAccountBase> balanceAccounts) {
    */
   public PaginatedBalanceAccountsResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -113,6 +133,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -124,6 +145,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public PaginatedBalanceAccountsResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -147,6 +169,27 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaginatedBalanceAccountsResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaginatedBalanceAccountsResponse object is equal to o. */
@@ -191,6 +234,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceAccounts) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNTS, this.balanceAccounts);
+    }
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaginatedBalanceAccountsResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderItemResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderItemResponse.java
index 3c817d137..35253b6da 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderItemResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderItemResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class PaginatedGetCardOrderItemResponse {
   public static final String JSON_PROPERTY_DATA = "data";
   private List<CardOrderItem> data;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetData = false;
+
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaginatedGetCardOrderItemResponse() {}
 
   /**
@@ -46,6 +63,7 @@ public PaginatedGetCardOrderItemResponse() {}
    */
   public PaginatedGetCardOrderItemResponse data(List<CardOrderItem> data) {
     this.data = data;
+    isSetData = true; // mark as set
     return this;
   }
 
@@ -77,6 +95,7 @@ public List<CardOrderItem> getData() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setData(List<CardOrderItem> data) {
     this.data = data;
+    isSetData = true; // mark as set
   }
 
   /**
@@ -88,6 +107,7 @@ public void setData(List<CardOrderItem> data) {
    */
   public PaginatedGetCardOrderItemResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -111,6 +131,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -122,6 +143,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public PaginatedGetCardOrderItemResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -145,6 +167,27 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaginatedGetCardOrderItemResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaginatedGetCardOrderItemResponse object is equal to o. */
@@ -189,6 +232,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetData) {
+      addIfNull(nulls, JSON_PROPERTY_DATA, this.data);
+    }
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaginatedGetCardOrderItemResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderResponse.java
index ef97d58f7..1311ac6e2 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaginatedGetCardOrderResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class PaginatedGetCardOrderResponse {
   public static final String JSON_PROPERTY_CARD_ORDERS = "cardOrders";
   private List<CardOrder> cardOrders;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCardOrders = false;
+
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaginatedGetCardOrderResponse() {}
 
   /**
@@ -46,6 +63,7 @@ public PaginatedGetCardOrderResponse() {}
    */
   public PaginatedGetCardOrderResponse cardOrders(List<CardOrder> cardOrders) {
     this.cardOrders = cardOrders;
+    isSetCardOrders = true; // mark as set
     return this;
   }
 
@@ -77,6 +95,7 @@ public List<CardOrder> getCardOrders() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCardOrders(List<CardOrder> cardOrders) {
     this.cardOrders = cardOrders;
+    isSetCardOrders = true; // mark as set
   }
 
   /**
@@ -88,6 +107,7 @@ public void setCardOrders(List<CardOrder> cardOrders) {
    */
   public PaginatedGetCardOrderResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -111,6 +131,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -122,6 +143,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public PaginatedGetCardOrderResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -145,6 +167,27 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaginatedGetCardOrderResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaginatedGetCardOrderResponse object is equal to o. */
@@ -188,6 +231,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCardOrders) {
+      addIfNull(nulls, JSON_PROPERTY_CARD_ORDERS, this.cardOrders);
+    }
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaginatedGetCardOrderResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaginatedPaymentInstrumentsResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaginatedPaymentInstrumentsResponse.java
index 96ec52439..c3b871132 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaginatedPaymentInstrumentsResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaginatedPaymentInstrumentsResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class PaginatedPaymentInstrumentsResponse {
   public static final String JSON_PROPERTY_HAS_NEXT = "hasNext";
   private Boolean hasNext;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasNext = false;
+
   public static final String JSON_PROPERTY_HAS_PREVIOUS = "hasPrevious";
   private Boolean hasPrevious;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetHasPrevious = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENTS = "paymentInstruments";
   private List<PaymentInstrument> paymentInstruments;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstruments = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaginatedPaymentInstrumentsResponse() {}
 
   /**
@@ -46,6 +63,7 @@ public PaginatedPaymentInstrumentsResponse() {}
    */
   public PaginatedPaymentInstrumentsResponse hasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
     return this;
   }
 
@@ -69,6 +87,7 @@ public Boolean getHasNext() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasNext(Boolean hasNext) {
     this.hasNext = hasNext;
+    isSetHasNext = true; // mark as set
   }
 
   /**
@@ -80,6 +99,7 @@ public void setHasNext(Boolean hasNext) {
    */
   public PaginatedPaymentInstrumentsResponse hasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
     return this;
   }
 
@@ -103,6 +123,7 @@ public Boolean getHasPrevious() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setHasPrevious(Boolean hasPrevious) {
     this.hasPrevious = hasPrevious;
+    isSetHasPrevious = true; // mark as set
   }
 
   /**
@@ -115,6 +136,7 @@ public void setHasPrevious(Boolean hasPrevious) {
   public PaginatedPaymentInstrumentsResponse paymentInstruments(
       List<PaymentInstrument> paymentInstruments) {
     this.paymentInstruments = paymentInstruments;
+    isSetPaymentInstruments = true; // mark as set
     return this;
   }
 
@@ -147,6 +169,27 @@ public List<PaymentInstrument> getPaymentInstruments() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstruments(List<PaymentInstrument> paymentInstruments) {
     this.paymentInstruments = paymentInstruments;
+    isSetPaymentInstruments = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaginatedPaymentInstrumentsResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaginatedPaymentInstrumentsResponse object is equal to o. */
@@ -192,6 +235,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetHasNext) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_NEXT, this.hasNext);
+    }
+    if (isSetHasPrevious) {
+      addIfNull(nulls, JSON_PROPERTY_HAS_PREVIOUS, this.hasPrevious);
+    }
+    if (isSetPaymentInstruments) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENTS, this.paymentInstruments);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaginatedPaymentInstrumentsResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrument.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrument.java
index dd614b16b..834d3829c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrument.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrument.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -48,36 +50,69 @@ public class PaymentInstrument {
   private List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
       additionalBankAccountIdentifications;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAdditionalBankAccountIdentifications = false;
+
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_BANK_ACCOUNT = "bankAccount";
   private BankAccountDetails bankAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankAccount = false;
+
   public static final String JSON_PROPERTY_CARD = "card";
   private Card card;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCard = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_ISSUING_COUNTRY_CODE = "issuingCountryCode";
   private String issuingCountryCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIssuingCountryCode = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID = "paymentInstrumentGroupId";
   private String paymentInstrumentGroupId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentGroupId = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_REPLACED_BY_ID = "replacedById";
   private String replacedById;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReplacedById = false;
+
   public static final String JSON_PROPERTY_REPLACEMENT_OF_ID = "replacementOfId";
   private String replacementOfId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReplacementOfId = false;
+
   /**
    * The status of the payment instrument. If a status is not specified when creating a payment
    * instrument, it is set to **active** by default. However, there can be exceptions for cards
@@ -135,9 +170,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_STATUS_COMMENT = "statusComment";
   private String statusComment;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusComment = false;
+
   /**
    * The reason for the status of the payment instrument. Possible values: **accountClosure**,
    * **damaged**, **endOfLife**, **expired**, **lost**, **stolen**, **suspectedFraud**,
@@ -201,6 +242,9 @@ public static StatusReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS_REASON = "statusReason";
   private StatusReasonEnum statusReason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusReason = false;
+
   /** The type of payment instrument. Possible values: **card**, **bankAccount**. */
   public enum TypeEnum {
     BANKACCOUNT(String.valueOf("bankAccount")),
@@ -245,6 +289,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrument() {}
 
   /**
@@ -262,6 +315,7 @@ public PaymentInstrument additionalBankAccountIdentifications(
       List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
           additionalBankAccountIdentifications) {
     this.additionalBankAccountIdentifications = additionalBankAccountIdentifications;
+    isSetAdditionalBankAccountIdentifications = true; // mark as set
     return this;
   }
 
@@ -308,6 +362,7 @@ public void setAdditionalBankAccountIdentifications(
       List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
           additionalBankAccountIdentifications) {
     this.additionalBankAccountIdentifications = additionalBankAccountIdentifications;
+    isSetAdditionalBankAccountIdentifications = true; // mark as set
   }
 
   /**
@@ -322,6 +377,7 @@ public void setAdditionalBankAccountIdentifications(
    */
   public PaymentInstrument balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -353,6 +409,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -363,6 +420,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public PaymentInstrument bankAccount(BankAccountDetails bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
     return this;
   }
 
@@ -386,6 +444,7 @@ public BankAccountDetails getBankAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankAccount(BankAccountDetails bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
   }
 
   /**
@@ -396,6 +455,7 @@ public void setBankAccount(BankAccountDetails bankAccount) {
    */
   public PaymentInstrument card(Card card) {
     this.card = card;
+    isSetCard = true; // mark as set
     return this;
   }
 
@@ -419,6 +479,7 @@ public Card getCard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCard(Card card) {
     this.card = card;
+    isSetCard = true; // mark as set
   }
 
   /**
@@ -429,6 +490,7 @@ public void setCard(Card card) {
    */
   public PaymentInstrument description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -452,6 +514,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -462,6 +525,7 @@ public void setDescription(String description) {
    */
   public PaymentInstrument id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -485,6 +549,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -498,6 +563,7 @@ public void setId(String id) {
    */
   public PaymentInstrument issuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
     return this;
   }
 
@@ -527,6 +593,7 @@ public String getIssuingCountryCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIssuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
   }
 
   /**
@@ -541,6 +608,7 @@ public void setIssuingCountryCode(String issuingCountryCode) {
    */
   public PaymentInstrument paymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
     return this;
   }
 
@@ -572,6 +640,7 @@ public String getPaymentInstrumentGroupId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
   }
 
   /**
@@ -582,6 +651,7 @@ public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
    */
   public PaymentInstrument reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -605,6 +675,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -616,6 +687,7 @@ public void setReference(String reference) {
    */
   public PaymentInstrument replacedById(String replacedById) {
     this.replacedById = replacedById;
+    isSetReplacedById = true; // mark as set
     return this;
   }
 
@@ -641,6 +713,7 @@ public String getReplacedById() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReplacedById(String replacedById) {
     this.replacedById = replacedById;
+    isSetReplacedById = true; // mark as set
   }
 
   /**
@@ -652,6 +725,7 @@ public void setReplacedById(String replacedById) {
    */
   public PaymentInstrument replacementOfId(String replacementOfId) {
     this.replacementOfId = replacementOfId;
+    isSetReplacementOfId = true; // mark as set
     return this;
   }
 
@@ -677,6 +751,7 @@ public String getReplacementOfId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReplacementOfId(String replacementOfId) {
     this.replacementOfId = replacementOfId;
+    isSetReplacementOfId = true; // mark as set
   }
 
   /**
@@ -702,6 +777,7 @@ public void setReplacementOfId(String replacementOfId) {
    */
   public PaymentInstrument status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -755,6 +831,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -767,6 +844,7 @@ public void setStatus(StatusEnum status) {
    */
   public PaymentInstrument statusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
     return this;
   }
 
@@ -794,6 +872,7 @@ public String getStatusComment() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
   }
 
   /**
@@ -810,6 +889,7 @@ public void setStatusComment(String statusComment) {
    */
   public PaymentInstrument statusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
     return this;
   }
 
@@ -845,6 +925,7 @@ public StatusReasonEnum getStatusReason() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
   }
 
   /**
@@ -855,6 +936,7 @@ public void setStatusReason(StatusReasonEnum statusReason) {
    */
   public PaymentInstrument type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -878,6 +960,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrument includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrument object is equal to o. */
@@ -966,6 +1069,75 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAdditionalBankAccountIdentifications) {
+      addIfNull(
+          nulls,
+          JSON_PROPERTY_ADDITIONAL_BANK_ACCOUNT_IDENTIFICATIONS,
+          this.additionalBankAccountIdentifications);
+    }
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetBankAccount) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_ACCOUNT, this.bankAccount);
+    }
+    if (isSetCard) {
+      addIfNull(nulls, JSON_PROPERTY_CARD, this.card);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetIssuingCountryCode) {
+      addIfNull(nulls, JSON_PROPERTY_ISSUING_COUNTRY_CODE, this.issuingCountryCode);
+    }
+    if (isSetPaymentInstrumentGroupId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID, this.paymentInstrumentGroupId);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetReplacedById) {
+      addIfNull(nulls, JSON_PROPERTY_REPLACED_BY_ID, this.replacedById);
+    }
+    if (isSetReplacementOfId) {
+      addIfNull(nulls, JSON_PROPERTY_REPLACEMENT_OF_ID, this.replacementOfId);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetStatusComment) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_COMMENT, this.statusComment);
+    }
+    if (isSetStatusReason) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_REASON, this.statusReason);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrument given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroup.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroup.java
index 04a81415a..3f326a3f0 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroup.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroup.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,21 +34,45 @@ public class PaymentInstrumentGroup {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_PROPERTIES = "properties";
   private Map<String, String> properties;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetProperties = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_TX_VARIANT = "txVariant";
   private String txVariant;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTxVariant = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentGroup() {}
 
   /**
@@ -61,6 +87,7 @@ public PaymentInstrumentGroup() {}
    */
   public PaymentInstrumentGroup balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -92,6 +119,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -102,6 +130,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public PaymentInstrumentGroup description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -125,6 +154,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -135,6 +165,7 @@ public void setDescription(String description) {
    */
   public PaymentInstrumentGroup id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -158,6 +189,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -168,6 +200,7 @@ public void setId(String id) {
    */
   public PaymentInstrumentGroup properties(Map<String, String> properties) {
     this.properties = properties;
+    isSetProperties = true; // mark as set
     return this;
   }
 
@@ -199,6 +232,7 @@ public Map<String, String> getProperties() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setProperties(Map<String, String> properties) {
     this.properties = properties;
+    isSetProperties = true; // mark as set
   }
 
   /**
@@ -209,6 +243,7 @@ public void setProperties(Map<String, String> properties) {
    */
   public PaymentInstrumentGroup reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -232,6 +267,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -242,6 +278,7 @@ public void setReference(String reference) {
    */
   public PaymentInstrumentGroup txVariant(String txVariant) {
     this.txVariant = txVariant;
+    isSetTxVariant = true; // mark as set
     return this;
   }
 
@@ -265,6 +302,27 @@ public String getTxVariant() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTxVariant(String txVariant) {
     this.txVariant = txVariant;
+    isSetTxVariant = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentGroup includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentGroup object is equal to o. */
@@ -314,6 +372,45 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetProperties) {
+      addIfNull(nulls, JSON_PROPERTY_PROPERTIES, this.properties);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetTxVariant) {
+      addIfNull(nulls, JSON_PROPERTY_TX_VARIANT, this.txVariant);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentGroup given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroupInfo.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroupInfo.java
index fdbe8a44f..3b9ae69a3 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroupInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentGroupInfo.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,18 +33,39 @@ public class PaymentInstrumentGroupInfo {
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_PROPERTIES = "properties";
   private Map<String, String> properties;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetProperties = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_TX_VARIANT = "txVariant";
   private String txVariant;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTxVariant = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentGroupInfo() {}
 
   /**
@@ -57,6 +80,7 @@ public PaymentInstrumentGroupInfo() {}
    */
   public PaymentInstrumentGroupInfo balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -88,6 +112,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -98,6 +123,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public PaymentInstrumentGroupInfo description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -121,6 +147,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -131,6 +158,7 @@ public void setDescription(String description) {
    */
   public PaymentInstrumentGroupInfo properties(Map<String, String> properties) {
     this.properties = properties;
+    isSetProperties = true; // mark as set
     return this;
   }
 
@@ -162,6 +190,7 @@ public Map<String, String> getProperties() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setProperties(Map<String, String> properties) {
     this.properties = properties;
+    isSetProperties = true; // mark as set
   }
 
   /**
@@ -172,6 +201,7 @@ public void setProperties(Map<String, String> properties) {
    */
   public PaymentInstrumentGroupInfo reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -195,6 +225,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -205,6 +236,7 @@ public void setReference(String reference) {
    */
   public PaymentInstrumentGroupInfo txVariant(String txVariant) {
     this.txVariant = txVariant;
+    isSetTxVariant = true; // mark as set
     return this;
   }
 
@@ -228,6 +260,27 @@ public String getTxVariant() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTxVariant(String txVariant) {
     this.txVariant = txVariant;
+    isSetTxVariant = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentGroupInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentGroupInfo object is equal to o. */
@@ -275,6 +328,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetProperties) {
+      addIfNull(nulls, JSON_PROPERTY_PROPERTIES, this.properties);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetTxVariant) {
+      addIfNull(nulls, JSON_PROPERTY_TX_VARIANT, this.txVariant);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentGroupInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentInfo.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentInfo.java
index 8b24392cf..3a43b4a9c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -39,24 +41,45 @@ public class PaymentInstrumentInfo {
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_BANK_ACCOUNT = "bankAccount";
   private BankAccountModel bankAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankAccount = false;
+
   public static final String JSON_PROPERTY_CARD = "card";
   private CardInfo card;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCard = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ISSUING_COUNTRY_CODE = "issuingCountryCode";
   private String issuingCountryCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIssuingCountryCode = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID = "paymentInstrumentGroupId";
   private String paymentInstrumentGroupId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentGroupId = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * The status of the payment instrument. If a status is not specified when creating a payment
    * instrument, it is set to **active** by default. However, there can be exceptions for cards
@@ -114,9 +137,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_STATUS_COMMENT = "statusComment";
   private String statusComment;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusComment = false;
+
   /**
    * The reason for the status of the payment instrument. Possible values: **accountClosure**,
    * **damaged**, **endOfLife**, **expired**, **lost**, **stolen**, **suspectedFraud**,
@@ -180,6 +209,9 @@ public static StatusReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS_REASON = "statusReason";
   private StatusReasonEnum statusReason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusReason = false;
+
   /** The type of payment instrument. Possible values: **card**, **bankAccount**. */
   public enum TypeEnum {
     BANKACCOUNT(String.valueOf("bankAccount")),
@@ -224,6 +256,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentInfo() {}
 
   /**
@@ -238,6 +279,7 @@ public PaymentInstrumentInfo() {}
    */
   public PaymentInstrumentInfo balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -269,6 +311,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -279,6 +322,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public PaymentInstrumentInfo bankAccount(BankAccountModel bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
     return this;
   }
 
@@ -302,6 +346,7 @@ public BankAccountModel getBankAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankAccount(BankAccountModel bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
   }
 
   /**
@@ -312,6 +357,7 @@ public void setBankAccount(BankAccountModel bankAccount) {
    */
   public PaymentInstrumentInfo card(CardInfo card) {
     this.card = card;
+    isSetCard = true; // mark as set
     return this;
   }
 
@@ -335,6 +381,7 @@ public CardInfo getCard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCard(CardInfo card) {
     this.card = card;
+    isSetCard = true; // mark as set
   }
 
   /**
@@ -345,6 +392,7 @@ public void setCard(CardInfo card) {
    */
   public PaymentInstrumentInfo description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -368,6 +416,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -381,6 +430,7 @@ public void setDescription(String description) {
    */
   public PaymentInstrumentInfo issuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
     return this;
   }
 
@@ -410,6 +460,7 @@ public String getIssuingCountryCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIssuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
   }
 
   /**
@@ -424,6 +475,7 @@ public void setIssuingCountryCode(String issuingCountryCode) {
    */
   public PaymentInstrumentInfo paymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
     return this;
   }
 
@@ -455,6 +507,7 @@ public String getPaymentInstrumentGroupId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
   }
 
   /**
@@ -465,6 +518,7 @@ public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
    */
   public PaymentInstrumentInfo reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -488,6 +542,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -513,6 +568,7 @@ public void setReference(String reference) {
    */
   public PaymentInstrumentInfo status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -566,6 +622,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -578,6 +635,7 @@ public void setStatus(StatusEnum status) {
    */
   public PaymentInstrumentInfo statusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
     return this;
   }
 
@@ -605,6 +663,7 @@ public String getStatusComment() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
   }
 
   /**
@@ -621,6 +680,7 @@ public void setStatusComment(String statusComment) {
    */
   public PaymentInstrumentInfo statusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
     return this;
   }
 
@@ -656,6 +716,7 @@ public StatusReasonEnum getStatusReason() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
   }
 
   /**
@@ -666,6 +727,7 @@ public void setStatusReason(StatusReasonEnum statusReason) {
    */
   public PaymentInstrumentInfo type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -689,6 +751,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentInfo object is equal to o. */
@@ -762,6 +845,60 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetBankAccount) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_ACCOUNT, this.bankAccount);
+    }
+    if (isSetCard) {
+      addIfNull(nulls, JSON_PROPERTY_CARD, this.card);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetIssuingCountryCode) {
+      addIfNull(nulls, JSON_PROPERTY_ISSUING_COUNTRY_CODE, this.issuingCountryCode);
+    }
+    if (isSetPaymentInstrumentGroupId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID, this.paymentInstrumentGroupId);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetStatusComment) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_COMMENT, this.statusComment);
+    }
+    if (isSetStatusReason) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_REASON, this.statusReason);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRequirement.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRequirement.java
index 60fb0e6b3..a620d7483 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -36,16 +38,28 @@ public class PaymentInstrumentRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ISSUING_COUNTRY_CODE = "issuingCountryCode";
   private String issuingCountryCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIssuingCountryCode = false;
+
   public static final String JSON_PROPERTY_ISSUING_COUNTRY_CODES = "issuingCountryCodes";
   private List<String> issuingCountryCodes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIssuingCountryCodes = false;
+
   public static final String JSON_PROPERTY_ONLY_FOR_CROSS_BALANCE_PLATFORM =
       "onlyForCrossBalancePlatform";
   private Boolean onlyForCrossBalancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOnlyForCrossBalancePlatform = false;
+
   /**
    * The type of the payment instrument. For example, \&quot;BankAccount\&quot; or
    * \&quot;Card\&quot;.
@@ -93,6 +107,9 @@ public static PaymentInstrumentTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_TYPE = "paymentInstrumentType";
   private PaymentInstrumentTypeEnum paymentInstrumentType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentType = false;
+
   /** **paymentInstrumentRequirement** */
   public enum TypeEnum {
     PAYMENTINSTRUMENTREQUIREMENT(String.valueOf("paymentInstrumentRequirement"));
@@ -135,6 +152,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentRequirement() {}
 
   /**
@@ -147,6 +173,7 @@ public PaymentInstrumentRequirement() {}
    */
   public PaymentInstrumentRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -174,6 +201,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -187,6 +215,7 @@ public void setDescription(String description) {
    */
   public PaymentInstrumentRequirement issuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
     return this;
   }
 
@@ -216,6 +245,7 @@ public String getIssuingCountryCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIssuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
   }
 
   /**
@@ -227,6 +257,7 @@ public void setIssuingCountryCode(String issuingCountryCode) {
    */
   public PaymentInstrumentRequirement issuingCountryCodes(List<String> issuingCountryCodes) {
     this.issuingCountryCodes = issuingCountryCodes;
+    isSetIssuingCountryCodes = true; // mark as set
     return this;
   }
 
@@ -260,6 +291,7 @@ public List<String> getIssuingCountryCodes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIssuingCountryCodes(List<String> issuingCountryCodes) {
     this.issuingCountryCodes = issuingCountryCodes;
+    isSetIssuingCountryCodes = true; // mark as set
   }
 
   /**
@@ -272,6 +304,7 @@ public void setIssuingCountryCodes(List<String> issuingCountryCodes) {
   public PaymentInstrumentRequirement onlyForCrossBalancePlatform(
       Boolean onlyForCrossBalancePlatform) {
     this.onlyForCrossBalancePlatform = onlyForCrossBalancePlatform;
+    isSetOnlyForCrossBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -297,6 +330,7 @@ public Boolean getOnlyForCrossBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOnlyForCrossBalancePlatform(Boolean onlyForCrossBalancePlatform) {
     this.onlyForCrossBalancePlatform = onlyForCrossBalancePlatform;
+    isSetOnlyForCrossBalancePlatform = true; // mark as set
   }
 
   /**
@@ -310,6 +344,7 @@ public void setOnlyForCrossBalancePlatform(Boolean onlyForCrossBalancePlatform)
   public PaymentInstrumentRequirement paymentInstrumentType(
       PaymentInstrumentTypeEnum paymentInstrumentType) {
     this.paymentInstrumentType = paymentInstrumentType;
+    isSetPaymentInstrumentType = true; // mark as set
     return this;
   }
 
@@ -337,6 +372,7 @@ public PaymentInstrumentTypeEnum getPaymentInstrumentType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentType(PaymentInstrumentTypeEnum paymentInstrumentType) {
     this.paymentInstrumentType = paymentInstrumentType;
+    isSetPaymentInstrumentType = true; // mark as set
   }
 
   /**
@@ -347,6 +383,7 @@ public void setPaymentInstrumentType(PaymentInstrumentTypeEnum paymentInstrument
    */
   public PaymentInstrumentRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -370,6 +407,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentRequirement object is equal to o. */
@@ -435,6 +493,46 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetIssuingCountryCode) {
+      addIfNull(nulls, JSON_PROPERTY_ISSUING_COUNTRY_CODE, this.issuingCountryCode);
+    }
+    if (isSetIssuingCountryCodes) {
+      addIfNull(nulls, JSON_PROPERTY_ISSUING_COUNTRY_CODES, this.issuingCountryCodes);
+    }
+    if (isSetOnlyForCrossBalancePlatform) {
+      addIfNull(
+          nulls, JSON_PROPERTY_ONLY_FOR_CROSS_BALANCE_PLATFORM, this.onlyForCrossBalancePlatform);
+    }
+    if (isSetPaymentInstrumentType) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_TYPE, this.paymentInstrumentType);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealInfo.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealInfo.java
index 3772295b1..cc487316c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealInfo.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class PaymentInstrumentRevealInfo {
   public static final String JSON_PROPERTY_CVC = "cvc";
   private String cvc;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCvc = false;
+
   public static final String JSON_PROPERTY_EXPIRATION = "expiration";
   private Expiry expiration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExpiration = false;
+
   public static final String JSON_PROPERTY_PAN = "pan";
   private String pan;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPan = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentRevealInfo() {}
 
   /**
@@ -43,6 +60,7 @@ public PaymentInstrumentRevealInfo() {}
    */
   public PaymentInstrumentRevealInfo cvc(String cvc) {
     this.cvc = cvc;
+    isSetCvc = true; // mark as set
     return this;
   }
 
@@ -66,6 +84,7 @@ public String getCvc() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCvc(String cvc) {
     this.cvc = cvc;
+    isSetCvc = true; // mark as set
   }
 
   /**
@@ -76,6 +95,7 @@ public void setCvc(String cvc) {
    */
   public PaymentInstrumentRevealInfo expiration(Expiry expiration) {
     this.expiration = expiration;
+    isSetExpiration = true; // mark as set
     return this;
   }
 
@@ -99,6 +119,7 @@ public Expiry getExpiration() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setExpiration(Expiry expiration) {
     this.expiration = expiration;
+    isSetExpiration = true; // mark as set
   }
 
   /**
@@ -109,6 +130,7 @@ public void setExpiration(Expiry expiration) {
    */
   public PaymentInstrumentRevealInfo pan(String pan) {
     this.pan = pan;
+    isSetPan = true; // mark as set
     return this;
   }
 
@@ -132,6 +154,27 @@ public String getPan() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPan(String pan) {
     this.pan = pan;
+    isSetPan = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentRevealInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentRevealInfo object is equal to o. */
@@ -175,6 +218,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCvc) {
+      addIfNull(nulls, JSON_PROPERTY_CVC, this.cvc);
+    }
+    if (isSetExpiration) {
+      addIfNull(nulls, JSON_PROPERTY_EXPIRATION, this.expiration);
+    }
+    if (isSetPan) {
+      addIfNull(nulls, JSON_PROPERTY_PAN, this.pan);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentRevealInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealRequest.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealRequest.java
index 600da23f1..db4c11381 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class PaymentInstrumentRevealRequest {
   public static final String JSON_PROPERTY_ENCRYPTED_KEY = "encryptedKey";
   private String encryptedKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedKey = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentRevealRequest() {}
 
   /**
@@ -44,6 +58,7 @@ public PaymentInstrumentRevealRequest() {}
    */
   public PaymentInstrumentRevealRequest encryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
     return this;
   }
 
@@ -75,6 +90,7 @@ public String getEncryptedKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
   }
 
   /**
@@ -88,6 +104,7 @@ public void setEncryptedKey(String encryptedKey) {
    */
   public PaymentInstrumentRevealRequest paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -115,6 +132,27 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentRevealRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentRevealRequest object is equal to o. */
@@ -160,6 +198,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEncryptedKey) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_KEY, this.encryptedKey);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentRevealRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealResponse.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealResponse.java
index 960d44b62..60fd99d7e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentRevealResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class PaymentInstrumentRevealResponse {
   public static final String JSON_PROPERTY_ENCRYPTED_DATA = "encryptedData";
   private String encryptedData;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedData = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentRevealResponse() {}
 
   /**
@@ -34,6 +45,7 @@ public PaymentInstrumentRevealResponse() {}
    */
   public PaymentInstrumentRevealResponse encryptedData(String encryptedData) {
     this.encryptedData = encryptedData;
+    isSetEncryptedData = true; // mark as set
     return this;
   }
 
@@ -57,6 +69,27 @@ public String getEncryptedData() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedData(String encryptedData) {
     this.encryptedData = encryptedData;
+    isSetEncryptedData = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentRevealResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentRevealResponse object is equal to o. */
@@ -97,6 +130,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEncryptedData) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_DATA, this.encryptedData);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentRevealResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentUpdateRequest.java b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentUpdateRequest.java
index 20cb3a261..ebe006423 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentUpdateRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PaymentInstrumentUpdateRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -33,9 +35,15 @@ public class PaymentInstrumentUpdateRequest {
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_CARD = "card";
   private CardInfo card;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCard = false;
+
   /**
    * The status of the payment instrument. If a status is not specified when creating a payment
    * instrument, it is set to **active** by default. However, there can be exceptions for cards
@@ -93,9 +101,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_STATUS_COMMENT = "statusComment";
   private String statusComment;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusComment = false;
+
   /**
    * The reason for updating the status of the payment instrument. Possible values: **lost**,
    * **stolen**, **damaged**, **suspectedFraud**, **expired**, **endOfLife**, **accountClosure**,
@@ -159,6 +173,15 @@ public static StatusReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS_REASON = "statusReason";
   private StatusReasonEnum statusReason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusReason = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PaymentInstrumentUpdateRequest() {}
 
   /**
@@ -173,6 +196,7 @@ public PaymentInstrumentUpdateRequest() {}
    */
   public PaymentInstrumentUpdateRequest balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -202,6 +226,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -213,6 +238,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public PaymentInstrumentUpdateRequest card(CardInfo card) {
     this.card = card;
+    isSetCard = true; // mark as set
     return this;
   }
 
@@ -236,6 +262,7 @@ public CardInfo getCard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCard(CardInfo card) {
     this.card = card;
+    isSetCard = true; // mark as set
   }
 
   /**
@@ -262,6 +289,7 @@ public void setCard(CardInfo card) {
    */
   public PaymentInstrumentUpdateRequest status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -315,6 +343,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -328,6 +357,7 @@ public void setStatus(StatusEnum status) {
    */
   public PaymentInstrumentUpdateRequest statusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
     return this;
   }
 
@@ -355,6 +385,7 @@ public String getStatusComment() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
   }
 
   /**
@@ -372,6 +403,7 @@ public void setStatusComment(String statusComment) {
    */
   public PaymentInstrumentUpdateRequest statusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
     return this;
   }
 
@@ -407,6 +439,27 @@ public StatusReasonEnum getStatusReason() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PaymentInstrumentUpdateRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PaymentInstrumentUpdateRequest object is equal to o. */
@@ -455,6 +508,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetCard) {
+      addIfNull(nulls, JSON_PROPERTY_CARD, this.card);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetStatusComment) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_COMMENT, this.statusComment);
+    }
+    if (isSetStatusReason) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_REASON, this.statusReason);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PaymentInstrumentUpdateRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Phone.java b/src/main/java/com/adyen/model/balanceplatform/Phone.java
index 6d10d0f8e..dd8a6c534 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Phone.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Phone.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,6 +29,9 @@ public class Phone {
   public static final String JSON_PROPERTY_NUMBER = "number";
   private String number;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetNumber = false;
+
   /** Type of phone number. Possible values: **Landline**, **Mobile**. */
   public enum TypeEnum {
     LANDLINE(String.valueOf("landline")),
@@ -71,6 +76,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Phone() {}
 
   /**
@@ -84,6 +98,7 @@ public Phone() {}
    */
   public Phone number(String number) {
     this.number = number;
+    isSetNumber = true; // mark as set
     return this;
   }
 
@@ -113,6 +128,7 @@ public String getNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setNumber(String number) {
     this.number = number;
+    isSetNumber = true; // mark as set
   }
 
   /**
@@ -123,6 +139,7 @@ public void setNumber(String number) {
    */
   public Phone type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -146,6 +163,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Phone includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Phone object is equal to o. */
@@ -186,6 +224,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetNumber) {
+      addIfNull(nulls, JSON_PROPERTY_NUMBER, this.number);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Phone given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PhoneNumber.java b/src/main/java/com/adyen/model/balanceplatform/PhoneNumber.java
index cdc93e935..29a158bd8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PhoneNumber.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PhoneNumber.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class PhoneNumber {
   public static final String JSON_PROPERTY_PHONE_COUNTRY_CODE = "phoneCountryCode";
   private String phoneCountryCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhoneCountryCode = false;
+
   public static final String JSON_PROPERTY_PHONE_NUMBER = "phoneNumber";
   private String phoneNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhoneNumber = false;
+
   /** The type of the phone number. Possible values: **Landline**, **Mobile**, **SIP**, **Fax**. */
   public enum PhoneTypeEnum {
     FAX(String.valueOf("Fax")),
@@ -82,6 +90,15 @@ public static PhoneTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PHONE_TYPE = "phoneType";
   private PhoneTypeEnum phoneType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPhoneType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PhoneNumber() {}
 
   /**
@@ -94,6 +111,7 @@ public PhoneNumber() {}
    */
   public PhoneNumber phoneCountryCode(String phoneCountryCode) {
     this.phoneCountryCode = phoneCountryCode;
+    isSetPhoneCountryCode = true; // mark as set
     return this;
   }
 
@@ -121,6 +139,7 @@ public String getPhoneCountryCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhoneCountryCode(String phoneCountryCode) {
     this.phoneCountryCode = phoneCountryCode;
+    isSetPhoneCountryCode = true; // mark as set
   }
 
   /**
@@ -132,6 +151,7 @@ public void setPhoneCountryCode(String phoneCountryCode) {
    */
   public PhoneNumber phoneNumber(String phoneNumber) {
     this.phoneNumber = phoneNumber;
+    isSetPhoneNumber = true; // mark as set
     return this;
   }
 
@@ -157,6 +177,7 @@ public String getPhoneNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhoneNumber(String phoneNumber) {
     this.phoneNumber = phoneNumber;
+    isSetPhoneNumber = true; // mark as set
   }
 
   /**
@@ -168,6 +189,7 @@ public void setPhoneNumber(String phoneNumber) {
    */
   public PhoneNumber phoneType(PhoneTypeEnum phoneType) {
     this.phoneType = phoneType;
+    isSetPhoneType = true; // mark as set
     return this;
   }
 
@@ -193,6 +215,27 @@ public PhoneTypeEnum getPhoneType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPhoneType(PhoneTypeEnum phoneType) {
     this.phoneType = phoneType;
+    isSetPhoneType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PhoneNumber includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PhoneNumber object is equal to o. */
@@ -236,6 +279,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetPhoneCountryCode) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE_COUNTRY_CODE, this.phoneCountryCode);
+    }
+    if (isSetPhoneNumber) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE_NUMBER, this.phoneNumber);
+    }
+    if (isSetPhoneType) {
+      addIfNull(nulls, JSON_PROPERTY_PHONE_TYPE, this.phoneType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PhoneNumber given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PinChangeRequest.java b/src/main/java/com/adyen/model/balanceplatform/PinChangeRequest.java
index ccc1df0a2..a8ba6739d 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PinChangeRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PinChangeRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,15 +30,33 @@ public class PinChangeRequest {
   public static final String JSON_PROPERTY_ENCRYPTED_KEY = "encryptedKey";
   private String encryptedKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedKey = false;
+
   public static final String JSON_PROPERTY_ENCRYPTED_PIN_BLOCK = "encryptedPinBlock";
   private String encryptedPinBlock;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedPinBlock = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   public static final String JSON_PROPERTY_TOKEN = "token";
   private String token;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetToken = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PinChangeRequest() {}
 
   /**
@@ -51,6 +71,7 @@ public PinChangeRequest() {}
    */
   public PinChangeRequest encryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
     return this;
   }
 
@@ -82,6 +103,7 @@ public String getEncryptedKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
   }
 
   /**
@@ -93,6 +115,7 @@ public void setEncryptedKey(String encryptedKey) {
    */
   public PinChangeRequest encryptedPinBlock(String encryptedPinBlock) {
     this.encryptedPinBlock = encryptedPinBlock;
+    isSetEncryptedPinBlock = true; // mark as set
     return this;
   }
 
@@ -118,6 +141,7 @@ public String getEncryptedPinBlock() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedPinBlock(String encryptedPinBlock) {
     this.encryptedPinBlock = encryptedPinBlock;
+    isSetEncryptedPinBlock = true; // mark as set
   }
 
   /**
@@ -130,6 +154,7 @@ public void setEncryptedPinBlock(String encryptedPinBlock) {
    */
   public PinChangeRequest paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -157,6 +182,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -167,6 +193,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
    */
   public PinChangeRequest token(String token) {
     this.token = token;
+    isSetToken = true; // mark as set
     return this;
   }
 
@@ -190,6 +217,27 @@ public String getToken() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setToken(String token) {
     this.token = token;
+    isSetToken = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PinChangeRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PinChangeRequest object is equal to o. */
@@ -237,6 +285,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEncryptedKey) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_KEY, this.encryptedKey);
+    }
+    if (isSetEncryptedPinBlock) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_PIN_BLOCK, this.encryptedPinBlock);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetToken) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN, this.token);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PinChangeRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PinChangeResponse.java b/src/main/java/com/adyen/model/balanceplatform/PinChangeResponse.java
index e917de51c..10c3c6626 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PinChangeResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PinChangeResponse.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -73,6 +75,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PinChangeResponse() {}
 
   /**
@@ -85,6 +96,7 @@ public PinChangeResponse() {}
    */
   public PinChangeResponse status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -112,6 +124,27 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PinChangeResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PinChangeResponse object is equal to o. */
@@ -151,6 +184,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PinChangeResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PlatformPaymentConfiguration.java b/src/main/java/com/adyen/model/balanceplatform/PlatformPaymentConfiguration.java
index b4cc3b6e1..9109818d1 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PlatformPaymentConfiguration.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PlatformPaymentConfiguration.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class PlatformPaymentConfiguration {
   public static final String JSON_PROPERTY_SALES_DAY_CLOSING_TIME = "salesDayClosingTime";
   private String salesDayClosingTime;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSalesDayClosingTime = false;
+
   public static final String JSON_PROPERTY_SETTLEMENT_DELAY_DAYS = "settlementDelayDays";
   private Integer settlementDelayDays;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSettlementDelayDays = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PlatformPaymentConfiguration() {}
 
   /**
@@ -43,6 +57,7 @@ public PlatformPaymentConfiguration() {}
    */
   public PlatformPaymentConfiguration salesDayClosingTime(String salesDayClosingTime) {
     this.salesDayClosingTime = salesDayClosingTime;
+    isSetSalesDayClosingTime = true; // mark as set
     return this;
   }
 
@@ -74,6 +89,7 @@ public String getSalesDayClosingTime() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSalesDayClosingTime(String salesDayClosingTime) {
     this.salesDayClosingTime = salesDayClosingTime;
+    isSetSalesDayClosingTime = true; // mark as set
   }
 
   /**
@@ -87,6 +103,7 @@ public void setSalesDayClosingTime(String salesDayClosingTime) {
    */
   public PlatformPaymentConfiguration settlementDelayDays(Integer settlementDelayDays) {
     this.settlementDelayDays = settlementDelayDays;
+    isSetSettlementDelayDays = true; // mark as set
     return this;
   }
 
@@ -116,6 +133,27 @@ public Integer getSettlementDelayDays() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSettlementDelayDays(Integer settlementDelayDays) {
     this.settlementDelayDays = settlementDelayDays;
+    isSetSettlementDelayDays = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PlatformPaymentConfiguration includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PlatformPaymentConfiguration object is equal to o. */
@@ -163,6 +201,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSalesDayClosingTime) {
+      addIfNull(nulls, JSON_PROPERTY_SALES_DAY_CLOSING_TIME, this.salesDayClosingTime);
+    }
+    if (isSetSettlementDelayDays) {
+      addIfNull(nulls, JSON_PROPERTY_SETTLEMENT_DELAY_DAYS, this.settlementDelayDays);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PlatformPaymentConfiguration given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ProcessingTypesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/ProcessingTypesRestriction.java
index c51b0478d..17ca17106 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ProcessingTypesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ProcessingTypesRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class ProcessingTypesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     ATMWITHDRAW(String.valueOf("atmWithdraw")),
@@ -88,6 +93,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ProcessingTypesRestriction() {}
 
   /**
@@ -98,6 +112,7 @@ public ProcessingTypesRestriction() {}
    */
   public ProcessingTypesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -121,6 +136,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -133,6 +149,7 @@ public void setOperation(String operation) {
    */
   public ProcessingTypesRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -168,6 +185,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ProcessingTypesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ProcessingTypesRestriction object is equal to o. */
@@ -209,6 +247,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ProcessingTypesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/PublicKeyResponse.java b/src/main/java/com/adyen/model/balanceplatform/PublicKeyResponse.java
index 1e4eccac7..1743fe563 100644
--- a/src/main/java/com/adyen/model/balanceplatform/PublicKeyResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/PublicKeyResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class PublicKeyResponse {
   public static final String JSON_PROPERTY_PUBLIC_KEY = "publicKey";
   private String publicKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPublicKey = false;
+
   public static final String JSON_PROPERTY_PUBLIC_KEY_EXPIRY_DATE = "publicKeyExpiryDate";
   private String publicKeyExpiryDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPublicKeyExpiryDate = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public PublicKeyResponse() {}
 
   /**
@@ -39,6 +53,7 @@ public PublicKeyResponse() {}
    */
   public PublicKeyResponse publicKey(String publicKey) {
     this.publicKey = publicKey;
+    isSetPublicKey = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getPublicKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPublicKey(String publicKey) {
     this.publicKey = publicKey;
+    isSetPublicKey = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setPublicKey(String publicKey) {
    */
   public PublicKeyResponse publicKeyExpiryDate(String publicKeyExpiryDate) {
     this.publicKeyExpiryDate = publicKeyExpiryDate;
+    isSetPublicKeyExpiryDate = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public String getPublicKeyExpiryDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPublicKeyExpiryDate(String publicKeyExpiryDate) {
     this.publicKeyExpiryDate = publicKeyExpiryDate;
+    isSetPublicKeyExpiryDate = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public PublicKeyResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this PublicKeyResponse object is equal to o. */
@@ -138,6 +176,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetPublicKey) {
+      addIfNull(nulls, JSON_PROPERTY_PUBLIC_KEY, this.publicKey);
+    }
+    if (isSetPublicKeyExpiryDate) {
+      addIfNull(nulls, JSON_PROPERTY_PUBLIC_KEY_EXPIRY_DATE, this.publicKeyExpiryDate);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of PublicKeyResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RegisterSCAFinalResponse.java b/src/main/java/com/adyen/model/balanceplatform/RegisterSCAFinalResponse.java
index 564b53724..75d59552e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RegisterSCAFinalResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RegisterSCAFinalResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class RegisterSCAFinalResponse {
   public static final String JSON_PROPERTY_SUCCESS = "success";
   private Boolean success;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSuccess = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RegisterSCAFinalResponse() {}
 
   /**
@@ -33,6 +44,7 @@ public RegisterSCAFinalResponse() {}
    */
   public RegisterSCAFinalResponse success(Boolean success) {
     this.success = success;
+    isSetSuccess = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public Boolean getSuccess() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSuccess(Boolean success) {
     this.success = success;
+    isSetSuccess = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RegisterSCAFinalResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RegisterSCAFinalResponse object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetSuccess) {
+      addIfNull(nulls, JSON_PROPERTY_SUCCESS, this.success);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RegisterSCAFinalResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RegisterSCARequest.java b/src/main/java/com/adyen/model/balanceplatform/RegisterSCARequest.java
index 31167cc89..7f64473ff 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RegisterSCARequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RegisterSCARequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,13 +29,28 @@ public class RegisterSCARequest {
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   public static final String JSON_PROPERTY_STRONG_CUSTOMER_AUTHENTICATION =
       "strongCustomerAuthentication";
   private DelegatedAuthenticationData strongCustomerAuthentication;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStrongCustomerAuthentication = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RegisterSCARequest() {}
 
   /**
@@ -47,6 +64,7 @@ public RegisterSCARequest() {}
    */
   public RegisterSCARequest name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -76,6 +94,7 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -87,6 +106,7 @@ public void setName(String name) {
    */
   public RegisterSCARequest paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -112,6 +132,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -123,6 +144,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
   public RegisterSCARequest strongCustomerAuthentication(
       DelegatedAuthenticationData strongCustomerAuthentication) {
     this.strongCustomerAuthentication = strongCustomerAuthentication;
+    isSetStrongCustomerAuthentication = true; // mark as set
     return this;
   }
 
@@ -147,6 +169,27 @@ public DelegatedAuthenticationData getStrongCustomerAuthentication() {
   public void setStrongCustomerAuthentication(
       DelegatedAuthenticationData strongCustomerAuthentication) {
     this.strongCustomerAuthentication = strongCustomerAuthentication;
+    isSetStrongCustomerAuthentication = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RegisterSCARequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RegisterSCARequest object is equal to o. */
@@ -195,6 +238,37 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetStrongCustomerAuthentication) {
+      addIfNull(
+          nulls, JSON_PROPERTY_STRONG_CUSTOMER_AUTHENTICATION, this.strongCustomerAuthentication);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RegisterSCARequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RegisterSCAResponse.java b/src/main/java/com/adyen/model/balanceplatform/RegisterSCAResponse.java
index 8f491a766..bd75c1e0e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RegisterSCAResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RegisterSCAResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,15 +30,33 @@ public class RegisterSCAResponse {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
   public static final String JSON_PROPERTY_SDK_INPUT = "sdkInput";
   private String sdkInput;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSdkInput = false;
+
   public static final String JSON_PROPERTY_SUCCESS = "success";
   private Boolean success;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSuccess = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RegisterSCAResponse() {}
 
   /**
@@ -47,6 +67,7 @@ public RegisterSCAResponse() {}
    */
   public RegisterSCAResponse id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -70,6 +91,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -81,6 +103,7 @@ public void setId(String id) {
    */
   public RegisterSCAResponse paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -106,6 +129,7 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
   }
 
   /**
@@ -118,6 +142,7 @@ public void setPaymentInstrumentId(String paymentInstrumentId) {
    */
   public RegisterSCAResponse sdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
     return this;
   }
 
@@ -145,6 +170,7 @@ public String getSdkInput() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSdkInput(String sdkInput) {
     this.sdkInput = sdkInput;
+    isSetSdkInput = true; // mark as set
   }
 
   /**
@@ -155,6 +181,7 @@ public void setSdkInput(String sdkInput) {
    */
   public RegisterSCAResponse success(Boolean success) {
     this.success = success;
+    isSetSuccess = true; // mark as set
     return this;
   }
 
@@ -178,6 +205,27 @@ public Boolean getSuccess() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSuccess(Boolean success) {
     this.success = success;
+    isSetSuccess = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RegisterSCAResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RegisterSCAResponse object is equal to o. */
@@ -225,6 +273,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+    if (isSetSdkInput) {
+      addIfNull(nulls, JSON_PROPERTY_SDK_INPUT, this.sdkInput);
+    }
+    if (isSetSuccess) {
+      addIfNull(nulls, JSON_PROPERTY_SUCCESS, this.success);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RegisterSCAResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RemediatingAction.java b/src/main/java/com/adyen/model/balanceplatform/RemediatingAction.java
index 70aba6fbc..7ff4fc8fa 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RemediatingAction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RemediatingAction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class RemediatingAction {
   public static final String JSON_PROPERTY_CODE = "code";
   private String code;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCode = false;
+
   public static final String JSON_PROPERTY_MESSAGE = "message";
   private String message;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMessage = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RemediatingAction() {}
 
   /**
@@ -36,6 +50,7 @@ public RemediatingAction() {}
    */
   public RemediatingAction code(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
     return this;
   }
 
@@ -59,6 +74,7 @@ public String getCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCode(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
   }
 
   /**
@@ -69,6 +85,7 @@ public void setCode(String code) {
    */
   public RemediatingAction message(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
     return this;
   }
 
@@ -92,6 +109,27 @@ public String getMessage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMessage(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RemediatingAction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RemediatingAction object is equal to o. */
@@ -133,6 +171,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCode) {
+      addIfNull(nulls, JSON_PROPERTY_CODE, this.code);
+    }
+    if (isSetMessage) {
+      addIfNull(nulls, JSON_PROPERTY_MESSAGE, this.message);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RemediatingAction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RemoveAssociationRequest.java b/src/main/java/com/adyen/model/balanceplatform/RemoveAssociationRequest.java
index db98f637e..9334b7aa8 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RemoveAssociationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RemoveAssociationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -29,12 +31,27 @@ public class RemoveAssociationRequest {
   public static final String JSON_PROPERTY_ENTITY_ID = "entityId";
   private String entityId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityId = false;
+
   public static final String JSON_PROPERTY_ENTITY_TYPE = "entityType";
   private ScaEntityType entityType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityType = false;
+
   public static final String JSON_PROPERTY_SCA_DEVICE_IDS = "scaDeviceIds";
   private List<String> scaDeviceIds;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaDeviceIds = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RemoveAssociationRequest() {}
 
   /**
@@ -45,6 +62,7 @@ public RemoveAssociationRequest() {}
    */
   public RemoveAssociationRequest entityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
     return this;
   }
 
@@ -68,6 +86,7 @@ public String getEntityId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityId(String entityId) {
     this.entityId = entityId;
+    isSetEntityId = true; // mark as set
   }
 
   /**
@@ -78,6 +97,7 @@ public void setEntityId(String entityId) {
    */
   public RemoveAssociationRequest entityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
     return this;
   }
 
@@ -101,6 +121,7 @@ public ScaEntityType getEntityType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityType(ScaEntityType entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
   }
 
   /**
@@ -111,6 +132,7 @@ public void setEntityType(ScaEntityType entityType) {
    */
   public RemoveAssociationRequest scaDeviceIds(List<String> scaDeviceIds) {
     this.scaDeviceIds = scaDeviceIds;
+    isSetScaDeviceIds = true; // mark as set
     return this;
   }
 
@@ -142,6 +164,27 @@ public List<String> getScaDeviceIds() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaDeviceIds(List<String> scaDeviceIds) {
     this.scaDeviceIds = scaDeviceIds;
+    isSetScaDeviceIds = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RemoveAssociationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RemoveAssociationRequest object is equal to o. */
@@ -185,6 +228,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntityId) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_ID, this.entityId);
+    }
+    if (isSetEntityType) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_TYPE, this.entityType);
+    }
+    if (isSetScaDeviceIds) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_DEVICE_IDS, this.scaDeviceIds);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RemoveAssociationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Repayment.java b/src/main/java/com/adyen/model/balanceplatform/Repayment.java
index aa2f906c7..8ab629b6e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Repayment.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Repayment.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class Repayment {
   public static final String JSON_PROPERTY_BASIS_POINTS = "basisPoints";
   private Integer basisPoints;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBasisPoints = false;
+
   public static final String JSON_PROPERTY_TERM = "term";
   private RepaymentTerm term;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTerm = false;
+
   public static final String JSON_PROPERTY_THRESHOLD = "threshold";
   private ThresholdRepayment threshold;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetThreshold = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Repayment() {}
 
   /**
@@ -45,6 +62,7 @@ public Repayment() {}
    */
   public Repayment basisPoints(Integer basisPoints) {
     this.basisPoints = basisPoints;
+    isSetBasisPoints = true; // mark as set
     return this;
   }
 
@@ -72,6 +90,7 @@ public Integer getBasisPoints() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBasisPoints(Integer basisPoints) {
     this.basisPoints = basisPoints;
+    isSetBasisPoints = true; // mark as set
   }
 
   /**
@@ -82,6 +101,7 @@ public void setBasisPoints(Integer basisPoints) {
    */
   public Repayment term(RepaymentTerm term) {
     this.term = term;
+    isSetTerm = true; // mark as set
     return this;
   }
 
@@ -105,6 +125,7 @@ public RepaymentTerm getTerm() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTerm(RepaymentTerm term) {
     this.term = term;
+    isSetTerm = true; // mark as set
   }
 
   /**
@@ -115,6 +136,7 @@ public void setTerm(RepaymentTerm term) {
    */
   public Repayment threshold(ThresholdRepayment threshold) {
     this.threshold = threshold;
+    isSetThreshold = true; // mark as set
     return this;
   }
 
@@ -138,6 +160,27 @@ public ThresholdRepayment getThreshold() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setThreshold(ThresholdRepayment threshold) {
     this.threshold = threshold;
+    isSetThreshold = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Repayment includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Repayment object is equal to o. */
@@ -181,6 +224,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBasisPoints) {
+      addIfNull(nulls, JSON_PROPERTY_BASIS_POINTS, this.basisPoints);
+    }
+    if (isSetTerm) {
+      addIfNull(nulls, JSON_PROPERTY_TERM, this.term);
+    }
+    if (isSetThreshold) {
+      addIfNull(nulls, JSON_PROPERTY_THRESHOLD, this.threshold);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Repayment given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RepaymentTerm.java b/src/main/java/com/adyen/model/balanceplatform/RepaymentTerm.java
index 66ff77e61..85ad8f1fd 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RepaymentTerm.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RepaymentTerm.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class RepaymentTerm {
   public static final String JSON_PROPERTY_ESTIMATED_DAYS = "estimatedDays";
   private Integer estimatedDays;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEstimatedDays = false;
+
   public static final String JSON_PROPERTY_MAXIMUM_DAYS = "maximumDays";
   private Integer maximumDays;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMaximumDays = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RepaymentTerm() {}
 
   /**
@@ -39,6 +53,7 @@ public RepaymentTerm() {}
    */
   public RepaymentTerm estimatedDays(Integer estimatedDays) {
     this.estimatedDays = estimatedDays;
+    isSetEstimatedDays = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public Integer getEstimatedDays() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEstimatedDays(Integer estimatedDays) {
     this.estimatedDays = estimatedDays;
+    isSetEstimatedDays = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setEstimatedDays(Integer estimatedDays) {
    */
   public RepaymentTerm maximumDays(Integer maximumDays) {
     this.maximumDays = maximumDays;
+    isSetMaximumDays = true; // mark as set
     return this;
   }
 
@@ -101,6 +118,27 @@ public Integer getMaximumDays() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMaximumDays(Integer maximumDays) {
     this.maximumDays = maximumDays;
+    isSetMaximumDays = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RepaymentTerm includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RepaymentTerm object is equal to o. */
@@ -142,6 +180,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEstimatedDays) {
+      addIfNull(nulls, JSON_PROPERTY_ESTIMATED_DAYS, this.estimatedDays);
+    }
+    if (isSetMaximumDays) {
+      addIfNull(nulls, JSON_PROPERTY_MAXIMUM_DAYS, this.maximumDays);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RepaymentTerm given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RestServiceError.java b/src/main/java/com/adyen/model/balanceplatform/RestServiceError.java
index 02871dfeb..c46605d11 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RestServiceError.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RestServiceError.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -35,30 +37,63 @@ public class RestServiceError {
   public static final String JSON_PROPERTY_DETAIL = "detail";
   private String detail;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDetail = false;
+
   public static final String JSON_PROPERTY_ERROR_CODE = "errorCode";
   private String errorCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetErrorCode = false;
+
   public static final String JSON_PROPERTY_INSTANCE = "instance";
   private String instance;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInstance = false;
+
   public static final String JSON_PROPERTY_INVALID_FIELDS = "invalidFields";
   private List<InvalidField> invalidFields;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInvalidFields = false;
+
   public static final String JSON_PROPERTY_REQUEST_ID = "requestId";
   private String requestId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestId = false;
+
   public static final String JSON_PROPERTY_RESPONSE = "response";
   private Object response;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetResponse = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private Integer status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TITLE = "title";
   private String title;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTitle = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private String type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RestServiceError() {}
 
   /**
@@ -69,6 +104,7 @@ public RestServiceError() {}
    */
   public RestServiceError detail(String detail) {
     this.detail = detail;
+    isSetDetail = true; // mark as set
     return this;
   }
 
@@ -92,6 +128,7 @@ public String getDetail() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDetail(String detail) {
     this.detail = detail;
+    isSetDetail = true; // mark as set
   }
 
   /**
@@ -102,6 +139,7 @@ public void setDetail(String detail) {
    */
   public RestServiceError errorCode(String errorCode) {
     this.errorCode = errorCode;
+    isSetErrorCode = true; // mark as set
     return this;
   }
 
@@ -125,6 +163,7 @@ public String getErrorCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setErrorCode(String errorCode) {
     this.errorCode = errorCode;
+    isSetErrorCode = true; // mark as set
   }
 
   /**
@@ -135,6 +174,7 @@ public void setErrorCode(String errorCode) {
    */
   public RestServiceError instance(String instance) {
     this.instance = instance;
+    isSetInstance = true; // mark as set
     return this;
   }
 
@@ -158,6 +198,7 @@ public String getInstance() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInstance(String instance) {
     this.instance = instance;
+    isSetInstance = true; // mark as set
   }
 
   /**
@@ -168,6 +209,7 @@ public void setInstance(String instance) {
    */
   public RestServiceError invalidFields(List<InvalidField> invalidFields) {
     this.invalidFields = invalidFields;
+    isSetInvalidFields = true; // mark as set
     return this;
   }
 
@@ -199,6 +241,7 @@ public List<InvalidField> getInvalidFields() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInvalidFields(List<InvalidField> invalidFields) {
     this.invalidFields = invalidFields;
+    isSetInvalidFields = true; // mark as set
   }
 
   /**
@@ -210,6 +253,7 @@ public void setInvalidFields(List<InvalidField> invalidFields) {
    */
   public RestServiceError requestId(String requestId) {
     this.requestId = requestId;
+    isSetRequestId = true; // mark as set
     return this;
   }
 
@@ -235,6 +279,7 @@ public String getRequestId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestId(String requestId) {
     this.requestId = requestId;
+    isSetRequestId = true; // mark as set
   }
 
   /**
@@ -245,6 +290,7 @@ public void setRequestId(String requestId) {
    */
   public RestServiceError response(Object response) {
     this.response = response;
+    isSetResponse = true; // mark as set
     return this;
   }
 
@@ -268,6 +314,7 @@ public Object getResponse() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setResponse(Object response) {
     this.response = response;
+    isSetResponse = true; // mark as set
   }
 
   /**
@@ -278,6 +325,7 @@ public void setResponse(Object response) {
    */
   public RestServiceError status(Integer status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -301,6 +349,7 @@ public Integer getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(Integer status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -311,6 +360,7 @@ public void setStatus(Integer status) {
    */
   public RestServiceError title(String title) {
     this.title = title;
+    isSetTitle = true; // mark as set
     return this;
   }
 
@@ -334,6 +384,7 @@ public String getTitle() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTitle(String title) {
     this.title = title;
+    isSetTitle = true; // mark as set
   }
 
   /**
@@ -346,6 +397,7 @@ public void setTitle(String title) {
    */
   public RestServiceError type(String type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -373,6 +425,27 @@ public String getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(String type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RestServiceError includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RestServiceError object is equal to o. */
@@ -429,6 +502,54 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDetail) {
+      addIfNull(nulls, JSON_PROPERTY_DETAIL, this.detail);
+    }
+    if (isSetErrorCode) {
+      addIfNull(nulls, JSON_PROPERTY_ERROR_CODE, this.errorCode);
+    }
+    if (isSetInstance) {
+      addIfNull(nulls, JSON_PROPERTY_INSTANCE, this.instance);
+    }
+    if (isSetInvalidFields) {
+      addIfNull(nulls, JSON_PROPERTY_INVALID_FIELDS, this.invalidFields);
+    }
+    if (isSetRequestId) {
+      addIfNull(nulls, JSON_PROPERTY_REQUEST_ID, this.requestId);
+    }
+    if (isSetResponse) {
+      addIfNull(nulls, JSON_PROPERTY_RESPONSE, this.response);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTitle) {
+      addIfNull(nulls, JSON_PROPERTY_TITLE, this.title);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RestServiceError given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RevealPinRequest.java b/src/main/java/com/adyen/model/balanceplatform/RevealPinRequest.java
index ea1075b73..9332aecec 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RevealPinRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RevealPinRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class RevealPinRequest {
   public static final String JSON_PROPERTY_ENCRYPTED_KEY = "encryptedKey";
   private String encryptedKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedKey = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_ID = "paymentInstrumentId";
   private String paymentInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentId = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RevealPinRequest() {}
 
   /**
@@ -43,6 +57,7 @@ public RevealPinRequest() {}
    */
   public RevealPinRequest encryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
     return this;
   }
 
@@ -74,6 +89,7 @@ public String getEncryptedKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedKey(String encryptedKey) {
     this.encryptedKey = encryptedKey;
+    isSetEncryptedKey = true; // mark as set
   }
 
   /**
@@ -86,6 +102,7 @@ public void setEncryptedKey(String encryptedKey) {
    */
   public RevealPinRequest paymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
     return this;
   }
 
@@ -113,6 +130,27 @@ public String getPaymentInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentId(String paymentInstrumentId) {
     this.paymentInstrumentId = paymentInstrumentId;
+    isSetPaymentInstrumentId = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RevealPinRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RevealPinRequest object is equal to o. */
@@ -156,6 +194,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEncryptedKey) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_KEY, this.encryptedKey);
+    }
+    if (isSetPaymentInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_ID, this.paymentInstrumentId);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RevealPinRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RevealPinResponse.java b/src/main/java/com/adyen/model/balanceplatform/RevealPinResponse.java
index 395dcab77..98b06871f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RevealPinResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RevealPinResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class RevealPinResponse {
   public static final String JSON_PROPERTY_ENCRYPTED_PIN_BLOCK = "encryptedPinBlock";
   private String encryptedPinBlock;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEncryptedPinBlock = false;
+
   public static final String JSON_PROPERTY_TOKEN = "token";
   private String token;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetToken = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RevealPinResponse() {}
 
   /**
@@ -40,6 +54,7 @@ public RevealPinResponse() {}
    */
   public RevealPinResponse encryptedPinBlock(String encryptedPinBlock) {
     this.encryptedPinBlock = encryptedPinBlock;
+    isSetEncryptedPinBlock = true; // mark as set
     return this;
   }
 
@@ -65,6 +80,7 @@ public String getEncryptedPinBlock() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEncryptedPinBlock(String encryptedPinBlock) {
     this.encryptedPinBlock = encryptedPinBlock;
+    isSetEncryptedPinBlock = true; // mark as set
   }
 
   /**
@@ -75,6 +91,7 @@ public void setEncryptedPinBlock(String encryptedPinBlock) {
    */
   public RevealPinResponse token(String token) {
     this.token = token;
+    isSetToken = true; // mark as set
     return this;
   }
 
@@ -98,6 +115,27 @@ public String getToken() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setToken(String token) {
     this.token = token;
+    isSetToken = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RevealPinResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RevealPinResponse object is equal to o. */
@@ -139,6 +177,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEncryptedPinBlock) {
+      addIfNull(nulls, JSON_PROPERTY_ENCRYPTED_PIN_BLOCK, this.encryptedPinBlock);
+    }
+    if (isSetToken) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN, this.token);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RevealPinResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RiskScores.java b/src/main/java/com/adyen/model/balanceplatform/RiskScores.java
index 6e1742123..a4fe03239 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RiskScores.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RiskScores.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class RiskScores {
   public static final String JSON_PROPERTY_MASTERCARD = "mastercard";
   private Integer mastercard;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMastercard = false;
+
   public static final String JSON_PROPERTY_VISA = "visa";
   private Integer visa;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetVisa = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RiskScores() {}
 
   /**
@@ -38,6 +52,7 @@ public RiskScores() {}
    */
   public RiskScores mastercard(Integer mastercard) {
     this.mastercard = mastercard;
+    isSetMastercard = true; // mark as set
     return this;
   }
 
@@ -65,6 +80,7 @@ public Integer getMastercard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMastercard(Integer mastercard) {
     this.mastercard = mastercard;
+    isSetMastercard = true; // mark as set
   }
 
   /**
@@ -77,6 +93,7 @@ public void setMastercard(Integer mastercard) {
    */
   public RiskScores visa(Integer visa) {
     this.visa = visa;
+    isSetVisa = true; // mark as set
     return this;
   }
 
@@ -104,6 +121,27 @@ public Integer getVisa() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setVisa(Integer visa) {
     this.visa = visa;
+    isSetVisa = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RiskScores includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RiskScores object is equal to o. */
@@ -145,6 +183,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetMastercard) {
+      addIfNull(nulls, JSON_PROPERTY_MASTERCARD, this.mastercard);
+    }
+    if (isSetVisa) {
+      addIfNull(nulls, JSON_PROPERTY_VISA, this.visa);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RiskScores given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/RiskScoresRestriction.java b/src/main/java/com/adyen/model/balanceplatform/RiskScoresRestriction.java
index 46afd17bb..4f74d6c89 100644
--- a/src/main/java/com/adyen/model/balanceplatform/RiskScoresRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/RiskScoresRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class RiskScoresRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private RiskScores value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public RiskScoresRestriction() {}
 
   /**
@@ -39,6 +53,7 @@ public RiskScoresRestriction() {}
    */
   public RiskScoresRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public RiskScoresRestriction value(RiskScores value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public RiskScores getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(RiskScores value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public RiskScoresRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this RiskScoresRestriction object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of RiskScoresRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SELocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/SELocalAccountIdentification.java
index a316850d9..478cd28d7 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SELocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SELocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class SELocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_CLEARING_NUMBER = "clearingNumber";
   private String clearingNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetClearingNumber = false;
+
   /** **seLocal** */
   public enum TypeEnum {
     SELOCAL(String.valueOf("seLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SELocalAccountIdentification() {}
 
   /**
@@ -90,6 +107,7 @@ public SELocalAccountIdentification() {}
    */
   public SELocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -121,6 +139,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -135,6 +154,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public SELocalAccountIdentification clearingNumber(String clearingNumber) {
     this.clearingNumber = clearingNumber;
+    isSetClearingNumber = true; // mark as set
     return this;
   }
 
@@ -166,6 +186,7 @@ public String getClearingNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setClearingNumber(String clearingNumber) {
     this.clearingNumber = clearingNumber;
+    isSetClearingNumber = true; // mark as set
   }
 
   /**
@@ -176,6 +197,7 @@ public void setClearingNumber(String clearingNumber) {
    */
   public SELocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -199,6 +221,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SELocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SELocalAccountIdentification object is equal to o. */
@@ -242,6 +285,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetClearingNumber) {
+      addIfNull(nulls, JSON_PROPERTY_CLEARING_NUMBER, this.clearingNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SELocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SGLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/SGLocalAccountIdentification.java
index 0d9892271..b6375ce45 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SGLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SGLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class SGLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_BIC = "bic";
   private String bic;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBic = false;
+
   /** **sgLocal** */
   public enum TypeEnum {
     SGLOCAL(String.valueOf("sgLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SGLocalAccountIdentification() {}
 
   /**
@@ -86,6 +103,7 @@ public SGLocalAccountIdentification() {}
    */
   public SGLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -109,6 +127,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -119,6 +138,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public SGLocalAccountIdentification bic(String bic) {
     this.bic = bic;
+    isSetBic = true; // mark as set
     return this;
   }
 
@@ -142,6 +162,7 @@ public String getBic() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBic(String bic) {
     this.bic = bic;
+    isSetBic = true; // mark as set
   }
 
   /**
@@ -152,6 +173,7 @@ public void setBic(String bic) {
    */
   public SGLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -175,6 +197,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SGLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SGLocalAccountIdentification object is equal to o. */
@@ -218,6 +261,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetBic) {
+      addIfNull(nulls, JSON_PROPERTY_BIC, this.bic);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SGLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SameAmountRestriction.java b/src/main/java/com/adyen/model/balanceplatform/SameAmountRestriction.java
index 907568935..7e9359e63 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SameAmountRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SameAmountRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class SameAmountRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Boolean value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SameAmountRestriction() {}
 
   /**
@@ -39,6 +53,7 @@ public SameAmountRestriction() {}
    */
   public SameAmountRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public SameAmountRestriction value(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public Boolean getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SameAmountRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SameAmountRestriction object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SameAmountRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SameCounterpartyRestriction.java b/src/main/java/com/adyen/model/balanceplatform/SameCounterpartyRestriction.java
index 995cdf7da..6ff5c4d10 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SameCounterpartyRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SameCounterpartyRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class SameCounterpartyRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Boolean value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SameCounterpartyRestriction() {}
 
   /**
@@ -39,6 +53,7 @@ public SameCounterpartyRestriction() {}
    */
   public SameCounterpartyRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public SameCounterpartyRestriction value(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public Boolean getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Boolean value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SameCounterpartyRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SameCounterpartyRestriction object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SameCounterpartyRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ScaDevice.java b/src/main/java/com/adyen/model/balanceplatform/ScaDevice.java
index 774e5178d..2ddd19882 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ScaDevice.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ScaDevice.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class ScaDevice {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_NAME = "name";
   private String name;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetName = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private ScaDeviceType type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ScaDevice() {}
 
   /**
@@ -43,6 +60,7 @@ public ScaDevice() {}
    */
   public ScaDevice id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -66,6 +84,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -78,6 +97,7 @@ public void setId(String id) {
    */
   public ScaDevice name(String name) {
     this.name = name;
+    isSetName = true; // mark as set
     return this;
   }
 
@@ -105,6 +125,7 @@ public String getName() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setName(String name) {
     this.name = name;
+    isSetName = true; // mark as set
   }
 
   /**
@@ -115,6 +136,7 @@ public void setName(String name) {
    */
   public ScaDevice type(ScaDeviceType type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -138,6 +160,27 @@ public ScaDeviceType getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(ScaDeviceType type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ScaDevice includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ScaDevice object is equal to o. */
@@ -181,6 +224,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetName) {
+      addIfNull(nulls, JSON_PROPERTY_NAME, this.name);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ScaDevice given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ScaEntity.java b/src/main/java/com/adyen/model/balanceplatform/ScaEntity.java
index 67442f106..dde090b6a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ScaEntity.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ScaEntity.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class ScaEntity {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private ScaEntityType type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ScaEntity() {}
 
   /**
@@ -36,6 +50,7 @@ public ScaEntity() {}
    */
   public ScaEntity id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -59,6 +74,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -69,6 +85,7 @@ public void setId(String id) {
    */
   public ScaEntity type(ScaEntityType type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -92,6 +109,27 @@ public ScaEntityType getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(ScaEntityType type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ScaEntity includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ScaEntity object is equal to o. */
@@ -132,6 +170,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ScaEntity given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ScaInformation.java b/src/main/java/com/adyen/model/balanceplatform/ScaInformation.java
index 8572ebad0..8e79696fa 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ScaInformation.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ScaInformation.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class ScaInformation {
   public static final String JSON_PROPERTY_EXEMPTION = "exemption";
   private ScaExemption exemption;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExemption = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private ScaStatus status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ScaInformation() {}
 
   /**
@@ -36,6 +50,7 @@ public ScaInformation() {}
    */
   public ScaInformation exemption(ScaExemption exemption) {
     this.exemption = exemption;
+    isSetExemption = true; // mark as set
     return this;
   }
 
@@ -59,6 +74,7 @@ public ScaExemption getExemption() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setExemption(ScaExemption exemption) {
     this.exemption = exemption;
+    isSetExemption = true; // mark as set
   }
 
   /**
@@ -69,6 +85,7 @@ public void setExemption(ScaExemption exemption) {
    */
   public ScaInformation status(ScaStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -92,6 +109,27 @@ public ScaStatus getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(ScaStatus status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ScaInformation includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ScaInformation object is equal to o. */
@@ -133,6 +171,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetExemption) {
+      addIfNull(nulls, JSON_PROPERTY_EXEMPTION, this.exemption);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ScaInformation given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SearchRegisteredDevicesResponse.java b/src/main/java/com/adyen/model/balanceplatform/SearchRegisteredDevicesResponse.java
index 099cdc84f..9a7dd6a75 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SearchRegisteredDevicesResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SearchRegisteredDevicesResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,15 +32,33 @@ public class SearchRegisteredDevicesResponse {
   public static final String JSON_PROPERTY_DATA = "data";
   private List<Device> data;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetData = false;
+
   public static final String JSON_PROPERTY_ITEMS_TOTAL = "itemsTotal";
   private Integer itemsTotal;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetItemsTotal = false;
+
   public static final String JSON_PROPERTY_LINK = "link";
   private Link link;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLink = false;
+
   public static final String JSON_PROPERTY_PAGES_TOTAL = "pagesTotal";
   private Integer pagesTotal;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPagesTotal = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SearchRegisteredDevicesResponse() {}
 
   /**
@@ -50,6 +70,7 @@ public SearchRegisteredDevicesResponse() {}
    */
   public SearchRegisteredDevicesResponse data(List<Device> data) {
     this.data = data;
+    isSetData = true; // mark as set
     return this;
   }
 
@@ -81,6 +102,7 @@ public List<Device> getData() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setData(List<Device> data) {
     this.data = data;
+    isSetData = true; // mark as set
   }
 
   /**
@@ -92,6 +114,7 @@ public void setData(List<Device> data) {
    */
   public SearchRegisteredDevicesResponse itemsTotal(Integer itemsTotal) {
     this.itemsTotal = itemsTotal;
+    isSetItemsTotal = true; // mark as set
     return this;
   }
 
@@ -115,6 +138,7 @@ public Integer getItemsTotal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setItemsTotal(Integer itemsTotal) {
     this.itemsTotal = itemsTotal;
+    isSetItemsTotal = true; // mark as set
   }
 
   /**
@@ -126,6 +150,7 @@ public void setItemsTotal(Integer itemsTotal) {
    */
   public SearchRegisteredDevicesResponse link(Link link) {
     this.link = link;
+    isSetLink = true; // mark as set
     return this;
   }
 
@@ -149,6 +174,7 @@ public Link getLink() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLink(Link link) {
     this.link = link;
+    isSetLink = true; // mark as set
   }
 
   /**
@@ -160,6 +186,7 @@ public void setLink(Link link) {
    */
   public SearchRegisteredDevicesResponse pagesTotal(Integer pagesTotal) {
     this.pagesTotal = pagesTotal;
+    isSetPagesTotal = true; // mark as set
     return this;
   }
 
@@ -183,6 +210,27 @@ public Integer getPagesTotal() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPagesTotal(Integer pagesTotal) {
     this.pagesTotal = pagesTotal;
+    isSetPagesTotal = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SearchRegisteredDevicesResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SearchRegisteredDevicesResponse object is equal to o. */
@@ -229,6 +277,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetData) {
+      addIfNull(nulls, JSON_PROPERTY_DATA, this.data);
+    }
+    if (isSetItemsTotal) {
+      addIfNull(nulls, JSON_PROPERTY_ITEMS_TOTAL, this.itemsTotal);
+    }
+    if (isSetLink) {
+      addIfNull(nulls, JSON_PROPERTY_LINK, this.link);
+    }
+    if (isSetPagesTotal) {
+      addIfNull(nulls, JSON_PROPERTY_PAGES_TOTAL, this.pagesTotal);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SearchRegisteredDevicesResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SourceAccountTypesRestriction.java b/src/main/java/com/adyen/model/balanceplatform/SourceAccountTypesRestriction.java
index b8f3fcb1f..bd30a88fa 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SourceAccountTypesRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SourceAccountTypesRestriction.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class SourceAccountTypesRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     BALANCEACCOUNT(String.valueOf("balanceAccount")),
@@ -76,6 +81,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SourceAccountTypesRestriction() {}
 
   /**
@@ -87,6 +101,7 @@ public SourceAccountTypesRestriction() {}
    */
   public SourceAccountTypesRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -110,6 +125,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -121,6 +137,7 @@ public void setOperation(String operation) {
    */
   public SourceAccountTypesRestriction value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -152,6 +169,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SourceAccountTypesRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SourceAccountTypesRestriction object is equal to o. */
@@ -193,6 +231,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SourceAccountTypesRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/StringMatch.java b/src/main/java/com/adyen/model/balanceplatform/StringMatch.java
index 9c2f29d09..e06c192dd 100644
--- a/src/main/java/com/adyen/model/balanceplatform/StringMatch.java
+++ b/src/main/java/com/adyen/model/balanceplatform/StringMatch.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -75,9 +77,21 @@ public static OperationEnum fromValue(String value) {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private OperationEnum operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private String value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public StringMatch() {}
 
   /**
@@ -90,6 +104,7 @@ public StringMatch() {}
    */
   public StringMatch operation(OperationEnum operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -117,6 +132,7 @@ public OperationEnum getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(OperationEnum operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -127,6 +143,7 @@ public void setOperation(OperationEnum operation) {
    */
   public StringMatch value(String value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -150,6 +167,27 @@ public String getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(String value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public StringMatch includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this StringMatch object is equal to o. */
@@ -191,6 +229,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of StringMatch given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationRequest.java b/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationRequest.java
index a52b29041..0c874107a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationRequest.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class SubmitScaAssociationRequest {
   public static final String JSON_PROPERTY_ENTITIES = "entities";
   private List<ScaEntity> entities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntities = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SubmitScaAssociationRequest() {}
 
   /**
@@ -35,6 +46,7 @@ public SubmitScaAssociationRequest() {}
    */
   public SubmitScaAssociationRequest entities(List<ScaEntity> entities) {
     this.entities = entities;
+    isSetEntities = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<ScaEntity> getEntities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntities(List<ScaEntity> entities) {
     this.entities = entities;
+    isSetEntities = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SubmitScaAssociationRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SubmitScaAssociationRequest object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntities) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITIES, this.entities);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SubmitScaAssociationRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationResponse.java b/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationResponse.java
index 3de49bf54..89aa4d069 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SubmitScaAssociationResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class SubmitScaAssociationResponse {
   public static final String JSON_PROPERTY_SCA_ASSOCIATIONS = "scaAssociations";
   private List<Association> scaAssociations;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaAssociations = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SubmitScaAssociationResponse() {}
 
   /**
@@ -35,6 +46,7 @@ public SubmitScaAssociationResponse() {}
    */
   public SubmitScaAssociationResponse scaAssociations(List<Association> scaAssociations) {
     this.scaAssociations = scaAssociations;
+    isSetScaAssociations = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<Association> getScaAssociations() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaAssociations(List<Association> scaAssociations) {
     this.scaAssociations = scaAssociations;
+    isSetScaAssociations = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SubmitScaAssociationResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SubmitScaAssociationResponse object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetScaAssociations) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_ASSOCIATIONS, this.scaAssociations);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SubmitScaAssociationResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SweepConfigurationV2.java b/src/main/java/com/adyen/model/balanceplatform/SweepConfigurationV2.java
index 08b97b895..c0b26eabd 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SweepConfigurationV2.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SweepConfigurationV2.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -96,18 +98,33 @@ public static CategoryEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private CategoryEnum category;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCategory = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY = "counterparty";
   private SweepCounterparty counterparty;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterparty = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   /** Gets or Sets priorities */
   public enum PrioritiesEnum {
     CROSSBORDER(String.valueOf("crossBorder")),
@@ -160,6 +177,9 @@ public static PrioritiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PRIORITIES = "priorities";
   private List<PrioritiesEnum> priorities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPriorities = false;
+
   /** The reason for disabling the sweep. */
   public enum ReasonEnum {
     ACCOUNTHIERARCHYNOTACTIVE(String.valueOf("accountHierarchyNotActive")),
@@ -209,6 +229,8 @@ public enum ReasonEnum {
 
     SCAFAILED(String.valueOf("scaFailed")),
 
+    SCHEMEADVICE(String.valueOf("schemeAdvice")),
+
     TRANSFERINSTRUMENTDOESNOTEXIST(String.valueOf("transferInstrumentDoesNotExist")),
 
     UNKNOWN(String.valueOf("unknown"));
@@ -251,18 +273,33 @@ public static ReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REASON = "reason";
   private ReasonEnum reason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReason = false;
+
   public static final String JSON_PROPERTY_REASON_DETAIL = "reasonDetail";
   private String reasonDetail;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReasonDetail = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY = "referenceForBeneficiary";
   private String referenceForBeneficiary;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReferenceForBeneficiary = false;
+
   public static final String JSON_PROPERTY_SCHEDULE = "schedule";
   private SweepSchedule schedule;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSchedule = false;
+
   /**
    * The status of the sweep. If not provided, by default, this is set to **active**. Possible
    * values: * **active**: the sweep is enabled and funds will be pulled in or pushed out based on
@@ -311,15 +348,27 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_SWEEP_AMOUNT = "sweepAmount";
   private Amount sweepAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSweepAmount = false;
+
   public static final String JSON_PROPERTY_TARGET_AMOUNT = "targetAmount";
   private Amount targetAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTargetAmount = false;
+
   public static final String JSON_PROPERTY_TRIGGER_AMOUNT = "triggerAmount";
   private Amount triggerAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTriggerAmount = false;
+
   /**
    * The direction of sweep, whether pushing out or pulling in funds to the balance account. If not
    * provided, by default, this is set to **push**. Possible values: * **push**: _push out funds_ to
@@ -369,6 +418,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SweepConfigurationV2() {}
 
   @JsonCreator
@@ -400,6 +458,7 @@ public SweepConfigurationV2(
    */
   public SweepConfigurationV2 category(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
     return this;
   }
 
@@ -443,6 +502,7 @@ public CategoryEnum getCategory() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCategory(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
   }
 
   /**
@@ -453,6 +513,7 @@ public void setCategory(CategoryEnum category) {
    */
   public SweepConfigurationV2 counterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
     return this;
   }
 
@@ -476,6 +537,7 @@ public SweepCounterparty getCounterparty() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
   }
 
   /**
@@ -492,6 +554,7 @@ public void setCounterparty(SweepCounterparty counterparty) {
    */
   public SweepConfigurationV2 currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -527,6 +590,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -541,6 +605,7 @@ public void setCurrency(String currency) {
    */
   public SweepConfigurationV2 description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -572,6 +637,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -594,14 +660,14 @@ public String getId() {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -617,14 +683,14 @@ public String getId() {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -634,6 +700,7 @@ public String getId() {
    */
   public SweepConfigurationV2 priorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
     return this;
   }
 
@@ -654,14 +721,14 @@ public SweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesItem) {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -677,14 +744,14 @@ public SweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesItem) {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -706,14 +773,14 @@ public List<PrioritiesEnum> getPriorities() {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -729,14 +796,14 @@ public List<PrioritiesEnum> getPriorities() {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -747,6 +814,7 @@ public List<PrioritiesEnum> getPriorities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPriorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
   }
 
   /**
@@ -779,6 +847,7 @@ public String getReasonDetail() {
    */
   public SweepConfigurationV2 reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -802,6 +871,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -814,6 +884,7 @@ public void setReference(String reference) {
    */
   public SweepConfigurationV2 referenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
     return this;
   }
 
@@ -841,6 +912,7 @@ public String getReferenceForBeneficiary() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReferenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
   }
 
   /**
@@ -851,6 +923,7 @@ public void setReferenceForBeneficiary(String referenceForBeneficiary) {
    */
   public SweepConfigurationV2 schedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
     return this;
   }
 
@@ -874,6 +947,7 @@ public SweepSchedule getSchedule() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSchedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
   }
 
   /**
@@ -889,6 +963,7 @@ public void setSchedule(SweepSchedule schedule) {
    */
   public SweepConfigurationV2 status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -922,6 +997,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -932,6 +1008,7 @@ public void setStatus(StatusEnum status) {
    */
   public SweepConfigurationV2 sweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
     return this;
   }
 
@@ -955,6 +1032,7 @@ public Amount getSweepAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
   }
 
   /**
@@ -965,6 +1043,7 @@ public void setSweepAmount(Amount sweepAmount) {
    */
   public SweepConfigurationV2 targetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
     return this;
   }
 
@@ -988,6 +1067,7 @@ public Amount getTargetAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTargetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
   }
 
   /**
@@ -998,6 +1078,7 @@ public void setTargetAmount(Amount targetAmount) {
    */
   public SweepConfigurationV2 triggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
     return this;
   }
 
@@ -1021,6 +1102,7 @@ public Amount getTriggerAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTriggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
   }
 
   /**
@@ -1037,6 +1119,7 @@ public void setTriggerAmount(Amount triggerAmount) {
    */
   public SweepConfigurationV2 type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -1072,6 +1155,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SweepConfigurationV2 includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SweepConfigurationV2 object is equal to o. */
@@ -1160,6 +1264,75 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCategory) {
+      addIfNull(nulls, JSON_PROPERTY_CATEGORY, this.category);
+    }
+    if (isSetCounterparty) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY, this.counterparty);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetPriorities) {
+      addIfNull(nulls, JSON_PROPERTY_PRIORITIES, this.priorities);
+    }
+    if (isSetReason) {
+      addIfNull(nulls, JSON_PROPERTY_REASON, this.reason);
+    }
+    if (isSetReasonDetail) {
+      addIfNull(nulls, JSON_PROPERTY_REASON_DETAIL, this.reasonDetail);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetReferenceForBeneficiary) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY, this.referenceForBeneficiary);
+    }
+    if (isSetSchedule) {
+      addIfNull(nulls, JSON_PROPERTY_SCHEDULE, this.schedule);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetSweepAmount) {
+      addIfNull(nulls, JSON_PROPERTY_SWEEP_AMOUNT, this.sweepAmount);
+    }
+    if (isSetTargetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET_AMOUNT, this.targetAmount);
+    }
+    if (isSetTriggerAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TRIGGER_AMOUNT, this.triggerAmount);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SweepConfigurationV2 given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SweepCounterparty.java b/src/main/java/com/adyen/model/balanceplatform/SweepCounterparty.java
index e12f86ab6..9d595ec17 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SweepCounterparty.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SweepCounterparty.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,12 +29,27 @@ public class SweepCounterparty {
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_MERCHANT_ACCOUNT = "merchantAccount";
   private String merchantAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMerchantAccount = false;
+
   public static final String JSON_PROPERTY_TRANSFER_INSTRUMENT_ID = "transferInstrumentId";
   private String transferInstrumentId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferInstrumentId = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SweepCounterparty() {}
 
   /**
@@ -49,6 +66,7 @@ public SweepCounterparty() {}
    */
   public SweepCounterparty balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -84,6 +102,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -97,6 +116,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public SweepCounterparty merchantAccount(String merchantAccount) {
     this.merchantAccount = merchantAccount;
+    isSetMerchantAccount = true; // mark as set
     return this;
   }
 
@@ -126,6 +146,7 @@ public String getMerchantAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMerchantAccount(String merchantAccount) {
     this.merchantAccount = merchantAccount;
+    isSetMerchantAccount = true; // mark as set
   }
 
   /**
@@ -155,6 +176,7 @@ public void setMerchantAccount(String merchantAccount) {
    */
   public SweepCounterparty transferInstrumentId(String transferInstrumentId) {
     this.transferInstrumentId = transferInstrumentId;
+    isSetTransferInstrumentId = true; // mark as set
     return this;
   }
 
@@ -216,6 +238,27 @@ public String getTransferInstrumentId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferInstrumentId(String transferInstrumentId) {
     this.transferInstrumentId = transferInstrumentId;
+    isSetTransferInstrumentId = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SweepCounterparty includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SweepCounterparty object is equal to o. */
@@ -261,6 +304,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetMerchantAccount) {
+      addIfNull(nulls, JSON_PROPERTY_MERCHANT_ACCOUNT, this.merchantAccount);
+    }
+    if (isSetTransferInstrumentId) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_INSTRUMENT_ID, this.transferInstrumentId);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SweepCounterparty given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/SweepSchedule.java b/src/main/java/com/adyen/model/balanceplatform/SweepSchedule.java
index 7b309ae0b..f9c4445a4 100644
--- a/src/main/java/com/adyen/model/balanceplatform/SweepSchedule.java
+++ b/src/main/java/com/adyen/model/balanceplatform/SweepSchedule.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,6 +29,9 @@ public class SweepSchedule {
   public static final String JSON_PROPERTY_CRON_EXPRESSION = "cronExpression";
   private String cronExpression;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCronExpression = false;
+
   /**
    * The schedule type. Possible values: * **cron**: push out funds based on a
    * &#x60;cronExpression&#x60;. * **daily**: push out funds daily at 07:00 AM CET. * **weekly**:
@@ -83,6 +88,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public SweepSchedule() {}
 
   /**
@@ -108,6 +122,7 @@ public SweepSchedule() {}
    */
   public SweepSchedule cronExpression(String cronExpression) {
     this.cronExpression = cronExpression;
+    isSetCronExpression = true; // mark as set
     return this;
   }
 
@@ -161,6 +176,7 @@ public String getCronExpression() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCronExpression(String cronExpression) {
     this.cronExpression = cronExpression;
+    isSetCronExpression = true; // mark as set
   }
 
   /**
@@ -179,6 +195,7 @@ public void setCronExpression(String cronExpression) {
    */
   public SweepSchedule type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -218,6 +235,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public SweepSchedule includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this SweepSchedule object is equal to o. */
@@ -259,6 +297,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCronExpression) {
+      addIfNull(nulls, JSON_PROPERTY_CRON_EXPRESSION, this.cronExpression);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of SweepSchedule given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/Target.java b/src/main/java/com/adyen/model/balanceplatform/Target.java
index f88f96c2a..fddb9436b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/Target.java
+++ b/src/main/java/com/adyen/model/balanceplatform/Target.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,6 +29,9 @@ public class Target {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   /**
    * The resource for which you want to receive notifications. Possible values: *
    * **balancePlatform**: receive notifications about balance changes in your entire balance
@@ -79,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public Target() {}
 
   /**
@@ -91,6 +105,7 @@ public Target() {}
    */
   public Target id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -118,6 +133,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -136,6 +152,7 @@ public void setId(String id) {
    */
   public Target type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -175,6 +192,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public Target includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this Target object is equal to o. */
@@ -215,6 +253,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of Target given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TargetUpdate.java b/src/main/java/com/adyen/model/balanceplatform/TargetUpdate.java
index 240936b7b..df019fe8e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TargetUpdate.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TargetUpdate.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -27,6 +29,9 @@ public class TargetUpdate {
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   /**
    * The resource for which you want to receive notifications. Possible values: *
    * **balancePlatform**: receive notifications about balance changes in your entire balance
@@ -79,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TargetUpdate() {}
 
   /**
@@ -91,6 +105,7 @@ public TargetUpdate() {}
    */
   public TargetUpdate id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -118,6 +133,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -136,6 +152,7 @@ public void setId(String id) {
    */
   public TargetUpdate type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -175,6 +192,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TargetUpdate includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TargetUpdate object is equal to o. */
@@ -215,6 +253,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TargetUpdate given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/ThresholdRepayment.java b/src/main/java/com/adyen/model/balanceplatform/ThresholdRepayment.java
index 591e826a3..bb402ba29 100644
--- a/src/main/java/com/adyen/model/balanceplatform/ThresholdRepayment.java
+++ b/src/main/java/com/adyen/model/balanceplatform/ThresholdRepayment.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class ThresholdRepayment {
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public ThresholdRepayment() {}
 
   /**
@@ -33,6 +44,7 @@ public ThresholdRepayment() {}
    */
   public ThresholdRepayment amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public ThresholdRepayment includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this ThresholdRepayment object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of ThresholdRepayment given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TimeOfDay.java b/src/main/java/com/adyen/model/balanceplatform/TimeOfDay.java
index f975493f6..43c33b979 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TimeOfDay.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TimeOfDay.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,9 +25,21 @@ public class TimeOfDay {
   public static final String JSON_PROPERTY_END_TIME = "endTime";
   private String endTime;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndTime = false;
+
   public static final String JSON_PROPERTY_START_TIME = "startTime";
   private String startTime;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartTime = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TimeOfDay() {}
 
   /**
@@ -38,6 +52,7 @@ public TimeOfDay() {}
    */
   public TimeOfDay endTime(String endTime) {
     this.endTime = endTime;
+    isSetEndTime = true; // mark as set
     return this;
   }
 
@@ -65,6 +80,7 @@ public String getEndTime() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndTime(String endTime) {
     this.endTime = endTime;
+    isSetEndTime = true; // mark as set
   }
 
   /**
@@ -77,6 +93,7 @@ public void setEndTime(String endTime) {
    */
   public TimeOfDay startTime(String startTime) {
     this.startTime = startTime;
+    isSetStartTime = true; // mark as set
     return this;
   }
 
@@ -104,6 +121,27 @@ public String getStartTime() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartTime(String startTime) {
     this.startTime = startTime;
+    isSetStartTime = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TimeOfDay includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TimeOfDay object is equal to o. */
@@ -145,6 +183,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEndTime) {
+      addIfNull(nulls, JSON_PROPERTY_END_TIME, this.endTime);
+    }
+    if (isSetStartTime) {
+      addIfNull(nulls, JSON_PROPERTY_START_TIME, this.startTime);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TimeOfDay given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TimeOfDayRestriction.java b/src/main/java/com/adyen/model/balanceplatform/TimeOfDayRestriction.java
index 0bed38d2a..23849ff60 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TimeOfDayRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TimeOfDayRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class TimeOfDayRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private TimeOfDay value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TimeOfDayRestriction() {}
 
   /**
@@ -39,6 +53,7 @@ public TimeOfDayRestriction() {}
    */
   public TimeOfDayRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public TimeOfDayRestriction value(TimeOfDay value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public TimeOfDay getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(TimeOfDay value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TimeOfDayRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TimeOfDayRestriction object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TimeOfDayRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TokenRequestorsRestriction.java b/src/main/java/com/adyen/model/balanceplatform/TokenRequestorsRestriction.java
index bb4db99db..f0a0cae61 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TokenRequestorsRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TokenRequestorsRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -28,9 +30,21 @@ public class TokenRequestorsRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<String> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TokenRequestorsRestriction() {}
 
   /**
@@ -41,6 +55,7 @@ public TokenRequestorsRestriction() {}
    */
   public TokenRequestorsRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -64,6 +79,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public TokenRequestorsRestriction value(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -105,6 +122,27 @@ public List<String> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<String> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TokenRequestorsRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TokenRequestorsRestriction object is equal to o. */
@@ -146,6 +184,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TokenRequestorsRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TotalAmountRestriction.java b/src/main/java/com/adyen/model/balanceplatform/TotalAmountRestriction.java
index 6327e440f..920250e26 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TotalAmountRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TotalAmountRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class TotalAmountRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Amount value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TotalAmountRestriction() {}
 
   /**
@@ -39,6 +53,7 @@ public TotalAmountRestriction() {}
    */
   public TotalAmountRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public TotalAmountRestriction value(Amount value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public Amount getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Amount value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TotalAmountRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TotalAmountRestriction object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TotalAmountRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRule.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRule.java
index 55cbd7732..2565efb38 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRule.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRule.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -42,21 +44,39 @@ public class TransactionRule {
   public static final String JSON_PROPERTY_AGGREGATION_LEVEL = "aggregationLevel";
   private String aggregationLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAggregationLevel = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_END_DATE = "endDate";
   private String endDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndDate = false;
+
   public static final String JSON_PROPERTY_ENTITY_KEY = "entityKey";
   private TransactionRuleEntityKey entityKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityKey = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_INTERVAL = "interval";
   private TransactionRuleInterval interval;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInterval = false;
+
   /**
    * The [outcome](https://docs.adyen.com/issuing/transaction-rules#outcome) that will be applied
    * when a transaction meets the conditions of the rule. Possible values: * **hardBlock**
@@ -115,9 +135,15 @@ public static OutcomeTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_OUTCOME_TYPE = "outcomeType";
   private OutcomeTypeEnum outcomeType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOutcomeType = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * Indicates the type of request to which the rule applies. If not provided, by default, this is
    * set to **authorization**. Possible values: **authorization**, **authentication**,
@@ -170,15 +196,27 @@ public static RequestTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REQUEST_TYPE = "requestType";
   private RequestTypeEnum requestType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestType = false;
+
   public static final String JSON_PROPERTY_RULE_RESTRICTIONS = "ruleRestrictions";
   private TransactionRuleRestrictions ruleRestrictions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRuleRestrictions = false;
+
   public static final String JSON_PROPERTY_SCORE = "score";
   private Integer score;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScore = false;
+
   public static final String JSON_PROPERTY_START_DATE = "startDate";
   private String startDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartDate = false;
+
   /**
    * The status of the transaction rule. If you provide a &#x60;startDate&#x60; in the request, the
    * rule is automatically created with an **active** status. Possible values: **active**,
@@ -227,6 +265,9 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   /**
    * The [type of rule](https://docs.adyen.com/issuing/transaction-rules#rule-types), which defines
    * if a rule blocks transactions based on individual characteristics or accumulates data. Possible
@@ -283,6 +324,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRule() {}
 
   /**
@@ -303,6 +353,7 @@ public TransactionRule() {}
    */
   public TransactionRule aggregationLevel(String aggregationLevel) {
     this.aggregationLevel = aggregationLevel;
+    isSetAggregationLevel = true; // mark as set
     return this;
   }
 
@@ -346,6 +397,7 @@ public String getAggregationLevel() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAggregationLevel(String aggregationLevel) {
     this.aggregationLevel = aggregationLevel;
+    isSetAggregationLevel = true; // mark as set
   }
 
   /**
@@ -356,6 +408,7 @@ public void setAggregationLevel(String aggregationLevel) {
    */
   public TransactionRule description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -379,6 +432,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -393,6 +447,7 @@ public void setDescription(String description) {
    */
   public TransactionRule endDate(String endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
     return this;
   }
 
@@ -424,6 +479,7 @@ public String getEndDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndDate(String endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
   }
 
   /**
@@ -434,6 +490,7 @@ public void setEndDate(String endDate) {
    */
   public TransactionRule entityKey(TransactionRuleEntityKey entityKey) {
     this.entityKey = entityKey;
+    isSetEntityKey = true; // mark as set
     return this;
   }
 
@@ -457,6 +514,7 @@ public TransactionRuleEntityKey getEntityKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityKey(TransactionRuleEntityKey entityKey) {
     this.entityKey = entityKey;
+    isSetEntityKey = true; // mark as set
   }
 
   /**
@@ -467,6 +525,7 @@ public void setEntityKey(TransactionRuleEntityKey entityKey) {
    */
   public TransactionRule id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -490,6 +549,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -500,6 +560,7 @@ public void setId(String id) {
    */
   public TransactionRule interval(TransactionRuleInterval interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
     return this;
   }
 
@@ -523,6 +584,7 @@ public TransactionRuleInterval getInterval() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInterval(TransactionRuleInterval interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
   }
 
   /**
@@ -550,6 +612,7 @@ public void setInterval(TransactionRuleInterval interval) {
    */
   public TransactionRule outcomeType(OutcomeTypeEnum outcomeType) {
     this.outcomeType = outcomeType;
+    isSetOutcomeType = true; // mark as set
     return this;
   }
 
@@ -607,6 +670,7 @@ public OutcomeTypeEnum getOutcomeType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOutcomeType(OutcomeTypeEnum outcomeType) {
     this.outcomeType = outcomeType;
+    isSetOutcomeType = true; // mark as set
   }
 
   /**
@@ -617,6 +681,7 @@ public void setOutcomeType(OutcomeTypeEnum outcomeType) {
    */
   public TransactionRule reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -640,6 +705,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -654,6 +720,7 @@ public void setReference(String reference) {
    */
   public TransactionRule requestType(RequestTypeEnum requestType) {
     this.requestType = requestType;
+    isSetRequestType = true; // mark as set
     return this;
   }
 
@@ -685,6 +752,7 @@ public RequestTypeEnum getRequestType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestType(RequestTypeEnum requestType) {
     this.requestType = requestType;
+    isSetRequestType = true; // mark as set
   }
 
   /**
@@ -695,6 +763,7 @@ public void setRequestType(RequestTypeEnum requestType) {
    */
   public TransactionRule ruleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
     this.ruleRestrictions = ruleRestrictions;
+    isSetRuleRestrictions = true; // mark as set
     return this;
   }
 
@@ -718,6 +787,7 @@ public TransactionRuleRestrictions getRuleRestrictions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRuleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
     this.ruleRestrictions = ruleRestrictions;
+    isSetRuleRestrictions = true; // mark as set
   }
 
   /**
@@ -732,6 +802,7 @@ public void setRuleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
    */
   public TransactionRule score(Integer score) {
     this.score = score;
+    isSetScore = true; // mark as set
     return this;
   }
 
@@ -763,6 +834,7 @@ public Integer getScore() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScore(Integer score) {
     this.score = score;
+    isSetScore = true; // mark as set
   }
 
   /**
@@ -778,6 +850,7 @@ public void setScore(Integer score) {
    */
   public TransactionRule startDate(String startDate) {
     this.startDate = startDate;
+    isSetStartDate = true; // mark as set
     return this;
   }
 
@@ -811,6 +884,7 @@ public String getStartDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartDate(String startDate) {
     this.startDate = startDate;
+    isSetStartDate = true; // mark as set
   }
 
   /**
@@ -825,6 +899,7 @@ public void setStartDate(String startDate) {
    */
   public TransactionRule status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -856,6 +931,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -878,6 +954,7 @@ public void setStatus(StatusEnum status) {
    */
   public TransactionRule type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -925,6 +1002,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRule includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRule object is equal to o. */
@@ -1004,6 +1102,69 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAggregationLevel) {
+      addIfNull(nulls, JSON_PROPERTY_AGGREGATION_LEVEL, this.aggregationLevel);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetEndDate) {
+      addIfNull(nulls, JSON_PROPERTY_END_DATE, this.endDate);
+    }
+    if (isSetEntityKey) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_KEY, this.entityKey);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetInterval) {
+      addIfNull(nulls, JSON_PROPERTY_INTERVAL, this.interval);
+    }
+    if (isSetOutcomeType) {
+      addIfNull(nulls, JSON_PROPERTY_OUTCOME_TYPE, this.outcomeType);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetRequestType) {
+      addIfNull(nulls, JSON_PROPERTY_REQUEST_TYPE, this.requestType);
+    }
+    if (isSetRuleRestrictions) {
+      addIfNull(nulls, JSON_PROPERTY_RULE_RESTRICTIONS, this.ruleRestrictions);
+    }
+    if (isSetScore) {
+      addIfNull(nulls, JSON_PROPERTY_SCORE, this.score);
+    }
+    if (isSetStartDate) {
+      addIfNull(nulls, JSON_PROPERTY_START_DATE, this.startDate);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRule given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleEntityKey.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleEntityKey.java
index 1a0616f80..a9e17aaa4 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleEntityKey.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleEntityKey.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class TransactionRuleEntityKey {
   public static final String JSON_PROPERTY_ENTITY_REFERENCE = "entityReference";
   private String entityReference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityReference = false;
+
   public static final String JSON_PROPERTY_ENTITY_TYPE = "entityType";
   private String entityType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRuleEntityKey() {}
 
   /**
@@ -39,6 +53,7 @@ public TransactionRuleEntityKey() {}
    */
   public TransactionRuleEntityKey entityReference(String entityReference) {
     this.entityReference = entityReference;
+    isSetEntityReference = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getEntityReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityReference(String entityReference) {
     this.entityReference = entityReference;
+    isSetEntityReference = true; // mark as set
   }
 
   /**
@@ -75,6 +91,7 @@ public void setEntityReference(String entityReference) {
    */
   public TransactionRuleEntityKey entityType(String entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
     return this;
   }
 
@@ -104,6 +121,27 @@ public String getEntityType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityType(String entityType) {
     this.entityType = entityType;
+    isSetEntityType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRuleEntityKey includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRuleEntityKey object is equal to o. */
@@ -145,6 +183,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetEntityReference) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_REFERENCE, this.entityReference);
+    }
+    if (isSetEntityType) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_TYPE, this.entityType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRuleEntityKey given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInfo.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInfo.java
index f80632c35..98b8e6a31 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInfo.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInfo.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -41,18 +43,33 @@ public class TransactionRuleInfo {
   public static final String JSON_PROPERTY_AGGREGATION_LEVEL = "aggregationLevel";
   private String aggregationLevel;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAggregationLevel = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_END_DATE = "endDate";
   private String endDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndDate = false;
+
   public static final String JSON_PROPERTY_ENTITY_KEY = "entityKey";
   private TransactionRuleEntityKey entityKey;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityKey = false;
+
   public static final String JSON_PROPERTY_INTERVAL = "interval";
   private TransactionRuleInterval interval;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInterval = false;
+
   /**
    * The [outcome](https://docs.adyen.com/issuing/transaction-rules#outcome) that will be applied
    * when a transaction meets the conditions of the rule. Possible values: * **hardBlock**
@@ -111,9 +128,15 @@ public static OutcomeTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_OUTCOME_TYPE = "outcomeType";
   private OutcomeTypeEnum outcomeType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOutcomeType = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   /**
    * Indicates the type of request to which the rule applies. If not provided, by default, this is
    * set to **authorization**. Possible values: **authorization**, **authentication**,
@@ -166,15 +189,27 @@ public static RequestTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REQUEST_TYPE = "requestType";
   private RequestTypeEnum requestType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequestType = false;
+
   public static final String JSON_PROPERTY_RULE_RESTRICTIONS = "ruleRestrictions";
   private TransactionRuleRestrictions ruleRestrictions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRuleRestrictions = false;
+
   public static final String JSON_PROPERTY_SCORE = "score";
   private Integer score;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScore = false;
+
   public static final String JSON_PROPERTY_START_DATE = "startDate";
   private String startDate;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartDate = false;
+
   /**
    * The status of the transaction rule. If you provide a &#x60;startDate&#x60; in the request, the
    * rule is automatically created with an **active** status. Possible values: **active**,
@@ -223,6 +258,9 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   /**
    * The [type of rule](https://docs.adyen.com/issuing/transaction-rules#rule-types), which defines
    * if a rule blocks transactions based on individual characteristics or accumulates data. Possible
@@ -279,6 +317,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRuleInfo() {}
 
   /**
@@ -299,6 +346,7 @@ public TransactionRuleInfo() {}
    */
   public TransactionRuleInfo aggregationLevel(String aggregationLevel) {
     this.aggregationLevel = aggregationLevel;
+    isSetAggregationLevel = true; // mark as set
     return this;
   }
 
@@ -342,6 +390,7 @@ public String getAggregationLevel() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAggregationLevel(String aggregationLevel) {
     this.aggregationLevel = aggregationLevel;
+    isSetAggregationLevel = true; // mark as set
   }
 
   /**
@@ -352,6 +401,7 @@ public void setAggregationLevel(String aggregationLevel) {
    */
   public TransactionRuleInfo description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -375,6 +425,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -389,6 +440,7 @@ public void setDescription(String description) {
    */
   public TransactionRuleInfo endDate(String endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
     return this;
   }
 
@@ -420,6 +472,7 @@ public String getEndDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndDate(String endDate) {
     this.endDate = endDate;
+    isSetEndDate = true; // mark as set
   }
 
   /**
@@ -430,6 +483,7 @@ public void setEndDate(String endDate) {
    */
   public TransactionRuleInfo entityKey(TransactionRuleEntityKey entityKey) {
     this.entityKey = entityKey;
+    isSetEntityKey = true; // mark as set
     return this;
   }
 
@@ -453,6 +507,7 @@ public TransactionRuleEntityKey getEntityKey() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntityKey(TransactionRuleEntityKey entityKey) {
     this.entityKey = entityKey;
+    isSetEntityKey = true; // mark as set
   }
 
   /**
@@ -463,6 +518,7 @@ public void setEntityKey(TransactionRuleEntityKey entityKey) {
    */
   public TransactionRuleInfo interval(TransactionRuleInterval interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
     return this;
   }
 
@@ -486,6 +542,7 @@ public TransactionRuleInterval getInterval() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setInterval(TransactionRuleInterval interval) {
     this.interval = interval;
+    isSetInterval = true; // mark as set
   }
 
   /**
@@ -513,6 +570,7 @@ public void setInterval(TransactionRuleInterval interval) {
    */
   public TransactionRuleInfo outcomeType(OutcomeTypeEnum outcomeType) {
     this.outcomeType = outcomeType;
+    isSetOutcomeType = true; // mark as set
     return this;
   }
 
@@ -570,6 +628,7 @@ public OutcomeTypeEnum getOutcomeType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOutcomeType(OutcomeTypeEnum outcomeType) {
     this.outcomeType = outcomeType;
+    isSetOutcomeType = true; // mark as set
   }
 
   /**
@@ -580,6 +639,7 @@ public void setOutcomeType(OutcomeTypeEnum outcomeType) {
    */
   public TransactionRuleInfo reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -603,6 +663,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -617,6 +678,7 @@ public void setReference(String reference) {
    */
   public TransactionRuleInfo requestType(RequestTypeEnum requestType) {
     this.requestType = requestType;
+    isSetRequestType = true; // mark as set
     return this;
   }
 
@@ -648,6 +710,7 @@ public RequestTypeEnum getRequestType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequestType(RequestTypeEnum requestType) {
     this.requestType = requestType;
+    isSetRequestType = true; // mark as set
   }
 
   /**
@@ -658,6 +721,7 @@ public void setRequestType(RequestTypeEnum requestType) {
    */
   public TransactionRuleInfo ruleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
     this.ruleRestrictions = ruleRestrictions;
+    isSetRuleRestrictions = true; // mark as set
     return this;
   }
 
@@ -681,6 +745,7 @@ public TransactionRuleRestrictions getRuleRestrictions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRuleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
     this.ruleRestrictions = ruleRestrictions;
+    isSetRuleRestrictions = true; // mark as set
   }
 
   /**
@@ -695,6 +760,7 @@ public void setRuleRestrictions(TransactionRuleRestrictions ruleRestrictions) {
    */
   public TransactionRuleInfo score(Integer score) {
     this.score = score;
+    isSetScore = true; // mark as set
     return this;
   }
 
@@ -726,6 +792,7 @@ public Integer getScore() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScore(Integer score) {
     this.score = score;
+    isSetScore = true; // mark as set
   }
 
   /**
@@ -741,6 +808,7 @@ public void setScore(Integer score) {
    */
   public TransactionRuleInfo startDate(String startDate) {
     this.startDate = startDate;
+    isSetStartDate = true; // mark as set
     return this;
   }
 
@@ -774,6 +842,7 @@ public String getStartDate() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartDate(String startDate) {
     this.startDate = startDate;
+    isSetStartDate = true; // mark as set
   }
 
   /**
@@ -788,6 +857,7 @@ public void setStartDate(String startDate) {
    */
   public TransactionRuleInfo status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -819,6 +889,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -841,6 +912,7 @@ public void setStatus(StatusEnum status) {
    */
   public TransactionRuleInfo type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -888,6 +960,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRuleInfo includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRuleInfo object is equal to o. */
@@ -964,6 +1057,66 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAggregationLevel) {
+      addIfNull(nulls, JSON_PROPERTY_AGGREGATION_LEVEL, this.aggregationLevel);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetEndDate) {
+      addIfNull(nulls, JSON_PROPERTY_END_DATE, this.endDate);
+    }
+    if (isSetEntityKey) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_KEY, this.entityKey);
+    }
+    if (isSetInterval) {
+      addIfNull(nulls, JSON_PROPERTY_INTERVAL, this.interval);
+    }
+    if (isSetOutcomeType) {
+      addIfNull(nulls, JSON_PROPERTY_OUTCOME_TYPE, this.outcomeType);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetRequestType) {
+      addIfNull(nulls, JSON_PROPERTY_REQUEST_TYPE, this.requestType);
+    }
+    if (isSetRuleRestrictions) {
+      addIfNull(nulls, JSON_PROPERTY_RULE_RESTRICTIONS, this.ruleRestrictions);
+    }
+    if (isSetScore) {
+      addIfNull(nulls, JSON_PROPERTY_SCORE, this.score);
+    }
+    if (isSetStartDate) {
+      addIfNull(nulls, JSON_PROPERTY_START_DATE, this.startDate);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRuleInfo given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInterval.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInterval.java
index e9ecdc45d..e5745783c 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInterval.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleInterval.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -34,6 +36,9 @@ public class TransactionRuleInterval {
   public static final String JSON_PROPERTY_DAY_OF_MONTH = "dayOfMonth";
   private Integer dayOfMonth;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDayOfMonth = false;
+
   /**
    * The day of week, used when the &#x60;duration.unit&#x60; is **weeks**. If not provided, by
    * default, this is set to **monday**. Possible values: **sunday**, **monday**, **tuesday**,
@@ -92,15 +97,27 @@ public static DayOfWeekEnum fromValue(String value) {
   public static final String JSON_PROPERTY_DAY_OF_WEEK = "dayOfWeek";
   private DayOfWeekEnum dayOfWeek;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDayOfWeek = false;
+
   public static final String JSON_PROPERTY_DURATION = "duration";
   private Duration duration;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDuration = false;
+
   public static final String JSON_PROPERTY_TIME_OF_DAY = "timeOfDay";
   private String timeOfDay;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeOfDay = false;
+
   public static final String JSON_PROPERTY_TIME_ZONE = "timeZone";
   private String timeZone;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeZone = false;
+
   /**
    * The [type of interval](https://docs.adyen.com/issuing/transaction-rules#time-intervals) during
    * which the rule conditions and limits apply, and how often counters are reset. Possible values:
@@ -167,6 +184,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRuleInterval() {}
 
   /**
@@ -179,6 +205,7 @@ public TransactionRuleInterval() {}
    */
   public TransactionRuleInterval dayOfMonth(Integer dayOfMonth) {
     this.dayOfMonth = dayOfMonth;
+    isSetDayOfMonth = true; // mark as set
     return this;
   }
 
@@ -206,6 +233,7 @@ public Integer getDayOfMonth() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDayOfMonth(Integer dayOfMonth) {
     this.dayOfMonth = dayOfMonth;
+    isSetDayOfMonth = true; // mark as set
   }
 
   /**
@@ -220,6 +248,7 @@ public void setDayOfMonth(Integer dayOfMonth) {
    */
   public TransactionRuleInterval dayOfWeek(DayOfWeekEnum dayOfWeek) {
     this.dayOfWeek = dayOfWeek;
+    isSetDayOfWeek = true; // mark as set
     return this;
   }
 
@@ -251,6 +280,7 @@ public DayOfWeekEnum getDayOfWeek() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDayOfWeek(DayOfWeekEnum dayOfWeek) {
     this.dayOfWeek = dayOfWeek;
+    isSetDayOfWeek = true; // mark as set
   }
 
   /**
@@ -261,6 +291,7 @@ public void setDayOfWeek(DayOfWeekEnum dayOfWeek) {
    */
   public TransactionRuleInterval duration(Duration duration) {
     this.duration = duration;
+    isSetDuration = true; // mark as set
     return this;
   }
 
@@ -284,6 +315,7 @@ public Duration getDuration() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDuration(Duration duration) {
     this.duration = duration;
+    isSetDuration = true; // mark as set
   }
 
   /**
@@ -297,6 +329,7 @@ public void setDuration(Duration duration) {
    */
   public TransactionRuleInterval timeOfDay(String timeOfDay) {
     this.timeOfDay = timeOfDay;
+    isSetTimeOfDay = true; // mark as set
     return this;
   }
 
@@ -326,6 +359,7 @@ public String getTimeOfDay() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeOfDay(String timeOfDay) {
     this.timeOfDay = timeOfDay;
+    isSetTimeOfDay = true; // mark as set
   }
 
   /**
@@ -338,6 +372,7 @@ public void setTimeOfDay(String timeOfDay) {
    */
   public TransactionRuleInterval timeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
     return this;
   }
 
@@ -365,6 +400,7 @@ public String getTimeZone() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeZone(String timeZone) {
     this.timeZone = timeZone;
+    isSetTimeZone = true; // mark as set
   }
 
   /**
@@ -397,6 +433,7 @@ public void setTimeZone(String timeZone) {
    */
   public TransactionRuleInterval type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -464,6 +501,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRuleInterval includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRuleInterval object is equal to o. */
@@ -513,6 +571,45 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDayOfMonth) {
+      addIfNull(nulls, JSON_PROPERTY_DAY_OF_MONTH, this.dayOfMonth);
+    }
+    if (isSetDayOfWeek) {
+      addIfNull(nulls, JSON_PROPERTY_DAY_OF_WEEK, this.dayOfWeek);
+    }
+    if (isSetDuration) {
+      addIfNull(nulls, JSON_PROPERTY_DURATION, this.duration);
+    }
+    if (isSetTimeOfDay) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_OF_DAY, this.timeOfDay);
+    }
+    if (isSetTimeZone) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_ZONE, this.timeZone);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRuleInterval given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleResponse.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleResponse.java
index 71abff1aa..2d06ba6da 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -23,6 +25,15 @@ public class TransactionRuleResponse {
   public static final String JSON_PROPERTY_TRANSACTION_RULE = "transactionRule";
   private TransactionRule transactionRule;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransactionRule = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRuleResponse() {}
 
   /**
@@ -33,6 +44,7 @@ public TransactionRuleResponse() {}
    */
   public TransactionRuleResponse transactionRule(TransactionRule transactionRule) {
     this.transactionRule = transactionRule;
+    isSetTransactionRule = true; // mark as set
     return this;
   }
 
@@ -56,6 +68,27 @@ public TransactionRule getTransactionRule() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransactionRule(TransactionRule transactionRule) {
     this.transactionRule = transactionRule;
+    isSetTransactionRule = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRuleResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRuleResponse object is equal to o. */
@@ -95,6 +128,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetTransactionRule) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSACTION_RULE, this.transactionRule);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRuleResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleRestrictions.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleRestrictions.java
index 82b143bc8..5eef44649 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRuleRestrictions.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRuleRestrictions.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -49,81 +51,162 @@ public class TransactionRuleRestrictions {
   public static final String JSON_PROPERTY_ACTIVE_NETWORK_TOKENS = "activeNetworkTokens";
   private ActiveNetworkTokensRestriction activeNetworkTokens;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetActiveNetworkTokens = false;
+
   public static final String JSON_PROPERTY_BRAND_VARIANTS = "brandVariants";
   private BrandVariantsRestriction brandVariants;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBrandVariants = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY_BANK = "counterpartyBank";
   private CounterpartyBankRestriction counterpartyBank;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterpartyBank = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY_TYPES = "counterpartyTypes";
   private CounterpartyTypesRestriction counterpartyTypes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterpartyTypes = false;
+
   public static final String JSON_PROPERTY_COUNTRIES = "countries";
   private CountriesRestriction countries;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountries = false;
+
   public static final String JSON_PROPERTY_DAY_OF_WEEK = "dayOfWeek";
   private DayOfWeekRestriction dayOfWeek;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDayOfWeek = false;
+
   public static final String JSON_PROPERTY_DIFFERENT_CURRENCIES = "differentCurrencies";
   private DifferentCurrenciesRestriction differentCurrencies;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDifferentCurrencies = false;
+
   public static final String JSON_PROPERTY_ENTRY_MODES = "entryModes";
   private EntryModesRestriction entryModes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntryModes = false;
+
   public static final String JSON_PROPERTY_INTERNATIONAL_TRANSACTION = "internationalTransaction";
   private InternationalTransactionRestriction internationalTransaction;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetInternationalTransaction = false;
+
   public static final String JSON_PROPERTY_MATCHING_TRANSACTIONS = "matchingTransactions";
   private MatchingTransactionsRestriction matchingTransactions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMatchingTransactions = false;
+
   public static final String JSON_PROPERTY_MATCHING_VALUES = "matchingValues";
   private MatchingValuesRestriction matchingValues;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMatchingValues = false;
+
   public static final String JSON_PROPERTY_MCCS = "mccs";
   private MccsRestriction mccs;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMccs = false;
+
   public static final String JSON_PROPERTY_MERCHANT_NAMES = "merchantNames";
   private MerchantNamesRestriction merchantNames;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMerchantNames = false;
+
   public static final String JSON_PROPERTY_MERCHANTS = "merchants";
   private MerchantsRestriction merchants;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMerchants = false;
+
   public static final String JSON_PROPERTY_PROCESSING_TYPES = "processingTypes";
   private ProcessingTypesRestriction processingTypes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetProcessingTypes = false;
+
   public static final String JSON_PROPERTY_RISK_SCORES = "riskScores";
   private RiskScoresRestriction riskScores;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRiskScores = false;
+
   public static final String JSON_PROPERTY_SAME_AMOUNT_RESTRICTION = "sameAmountRestriction";
   private SameAmountRestriction sameAmountRestriction;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSameAmountRestriction = false;
+
   public static final String JSON_PROPERTY_SAME_COUNTERPARTY_RESTRICTION =
       "sameCounterpartyRestriction";
   private SameCounterpartyRestriction sameCounterpartyRestriction;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSameCounterpartyRestriction = false;
+
   public static final String JSON_PROPERTY_SOURCE_ACCOUNT_TYPES = "sourceAccountTypes";
   private SourceAccountTypesRestriction sourceAccountTypes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSourceAccountTypes = false;
+
   public static final String JSON_PROPERTY_TIME_OF_DAY = "timeOfDay";
   private TimeOfDayRestriction timeOfDay;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTimeOfDay = false;
+
   public static final String JSON_PROPERTY_TOKEN_REQUESTORS = "tokenRequestors";
   private TokenRequestorsRestriction tokenRequestors;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTokenRequestors = false;
+
   public static final String JSON_PROPERTY_TOTAL_AMOUNT = "totalAmount";
   private TotalAmountRestriction totalAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTotalAmount = false;
+
   public static final String JSON_PROPERTY_WALLET_PROVIDER_ACCOUNT_SCORE =
       "walletProviderAccountScore";
   private WalletProviderAccountScoreRestriction walletProviderAccountScore;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWalletProviderAccountScore = false;
+
   public static final String JSON_PROPERTY_WALLET_PROVIDER_DEVICE_SCORE =
       "walletProviderDeviceScore";
   private WalletProviderDeviceScore walletProviderDeviceScore;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWalletProviderDeviceScore = false;
+
   public static final String JSON_PROPERTY_WALLET_PROVIDER_DEVICE_TYPE = "walletProviderDeviceType";
   private WalletProviderDeviceType walletProviderDeviceType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWalletProviderDeviceType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRuleRestrictions() {}
 
   /**
@@ -135,6 +218,7 @@ public TransactionRuleRestrictions() {}
   public TransactionRuleRestrictions activeNetworkTokens(
       ActiveNetworkTokensRestriction activeNetworkTokens) {
     this.activeNetworkTokens = activeNetworkTokens;
+    isSetActiveNetworkTokens = true; // mark as set
     return this;
   }
 
@@ -158,6 +242,7 @@ public ActiveNetworkTokensRestriction getActiveNetworkTokens() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setActiveNetworkTokens(ActiveNetworkTokensRestriction activeNetworkTokens) {
     this.activeNetworkTokens = activeNetworkTokens;
+    isSetActiveNetworkTokens = true; // mark as set
   }
 
   /**
@@ -168,6 +253,7 @@ public void setActiveNetworkTokens(ActiveNetworkTokensRestriction activeNetworkT
    */
   public TransactionRuleRestrictions brandVariants(BrandVariantsRestriction brandVariants) {
     this.brandVariants = brandVariants;
+    isSetBrandVariants = true; // mark as set
     return this;
   }
 
@@ -191,6 +277,7 @@ public BrandVariantsRestriction getBrandVariants() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBrandVariants(BrandVariantsRestriction brandVariants) {
     this.brandVariants = brandVariants;
+    isSetBrandVariants = true; // mark as set
   }
 
   /**
@@ -202,6 +289,7 @@ public void setBrandVariants(BrandVariantsRestriction brandVariants) {
   public TransactionRuleRestrictions counterpartyBank(
       CounterpartyBankRestriction counterpartyBank) {
     this.counterpartyBank = counterpartyBank;
+    isSetCounterpartyBank = true; // mark as set
     return this;
   }
 
@@ -225,6 +313,7 @@ public CounterpartyBankRestriction getCounterpartyBank() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterpartyBank(CounterpartyBankRestriction counterpartyBank) {
     this.counterpartyBank = counterpartyBank;
+    isSetCounterpartyBank = true; // mark as set
   }
 
   /**
@@ -236,6 +325,7 @@ public void setCounterpartyBank(CounterpartyBankRestriction counterpartyBank) {
   public TransactionRuleRestrictions counterpartyTypes(
       CounterpartyTypesRestriction counterpartyTypes) {
     this.counterpartyTypes = counterpartyTypes;
+    isSetCounterpartyTypes = true; // mark as set
     return this;
   }
 
@@ -259,6 +349,7 @@ public CounterpartyTypesRestriction getCounterpartyTypes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterpartyTypes(CounterpartyTypesRestriction counterpartyTypes) {
     this.counterpartyTypes = counterpartyTypes;
+    isSetCounterpartyTypes = true; // mark as set
   }
 
   /**
@@ -269,6 +360,7 @@ public void setCounterpartyTypes(CounterpartyTypesRestriction counterpartyTypes)
    */
   public TransactionRuleRestrictions countries(CountriesRestriction countries) {
     this.countries = countries;
+    isSetCountries = true; // mark as set
     return this;
   }
 
@@ -292,6 +384,7 @@ public CountriesRestriction getCountries() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountries(CountriesRestriction countries) {
     this.countries = countries;
+    isSetCountries = true; // mark as set
   }
 
   /**
@@ -302,6 +395,7 @@ public void setCountries(CountriesRestriction countries) {
    */
   public TransactionRuleRestrictions dayOfWeek(DayOfWeekRestriction dayOfWeek) {
     this.dayOfWeek = dayOfWeek;
+    isSetDayOfWeek = true; // mark as set
     return this;
   }
 
@@ -325,6 +419,7 @@ public DayOfWeekRestriction getDayOfWeek() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDayOfWeek(DayOfWeekRestriction dayOfWeek) {
     this.dayOfWeek = dayOfWeek;
+    isSetDayOfWeek = true; // mark as set
   }
 
   /**
@@ -336,6 +431,7 @@ public void setDayOfWeek(DayOfWeekRestriction dayOfWeek) {
   public TransactionRuleRestrictions differentCurrencies(
       DifferentCurrenciesRestriction differentCurrencies) {
     this.differentCurrencies = differentCurrencies;
+    isSetDifferentCurrencies = true; // mark as set
     return this;
   }
 
@@ -359,6 +455,7 @@ public DifferentCurrenciesRestriction getDifferentCurrencies() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDifferentCurrencies(DifferentCurrenciesRestriction differentCurrencies) {
     this.differentCurrencies = differentCurrencies;
+    isSetDifferentCurrencies = true; // mark as set
   }
 
   /**
@@ -369,6 +466,7 @@ public void setDifferentCurrencies(DifferentCurrenciesRestriction differentCurre
    */
   public TransactionRuleRestrictions entryModes(EntryModesRestriction entryModes) {
     this.entryModes = entryModes;
+    isSetEntryModes = true; // mark as set
     return this;
   }
 
@@ -392,6 +490,7 @@ public EntryModesRestriction getEntryModes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEntryModes(EntryModesRestriction entryModes) {
     this.entryModes = entryModes;
+    isSetEntryModes = true; // mark as set
   }
 
   /**
@@ -403,6 +502,7 @@ public void setEntryModes(EntryModesRestriction entryModes) {
   public TransactionRuleRestrictions internationalTransaction(
       InternationalTransactionRestriction internationalTransaction) {
     this.internationalTransaction = internationalTransaction;
+    isSetInternationalTransaction = true; // mark as set
     return this;
   }
 
@@ -427,6 +527,7 @@ public InternationalTransactionRestriction getInternationalTransaction() {
   public void setInternationalTransaction(
       InternationalTransactionRestriction internationalTransaction) {
     this.internationalTransaction = internationalTransaction;
+    isSetInternationalTransaction = true; // mark as set
   }
 
   /**
@@ -438,6 +539,7 @@ public void setInternationalTransaction(
   public TransactionRuleRestrictions matchingTransactions(
       MatchingTransactionsRestriction matchingTransactions) {
     this.matchingTransactions = matchingTransactions;
+    isSetMatchingTransactions = true; // mark as set
     return this;
   }
 
@@ -461,6 +563,7 @@ public MatchingTransactionsRestriction getMatchingTransactions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMatchingTransactions(MatchingTransactionsRestriction matchingTransactions) {
     this.matchingTransactions = matchingTransactions;
+    isSetMatchingTransactions = true; // mark as set
   }
 
   /**
@@ -471,6 +574,7 @@ public void setMatchingTransactions(MatchingTransactionsRestriction matchingTran
    */
   public TransactionRuleRestrictions matchingValues(MatchingValuesRestriction matchingValues) {
     this.matchingValues = matchingValues;
+    isSetMatchingValues = true; // mark as set
     return this;
   }
 
@@ -494,6 +598,7 @@ public MatchingValuesRestriction getMatchingValues() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMatchingValues(MatchingValuesRestriction matchingValues) {
     this.matchingValues = matchingValues;
+    isSetMatchingValues = true; // mark as set
   }
 
   /**
@@ -504,6 +609,7 @@ public void setMatchingValues(MatchingValuesRestriction matchingValues) {
    */
   public TransactionRuleRestrictions mccs(MccsRestriction mccs) {
     this.mccs = mccs;
+    isSetMccs = true; // mark as set
     return this;
   }
 
@@ -527,6 +633,7 @@ public MccsRestriction getMccs() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMccs(MccsRestriction mccs) {
     this.mccs = mccs;
+    isSetMccs = true; // mark as set
   }
 
   /**
@@ -537,6 +644,7 @@ public void setMccs(MccsRestriction mccs) {
    */
   public TransactionRuleRestrictions merchantNames(MerchantNamesRestriction merchantNames) {
     this.merchantNames = merchantNames;
+    isSetMerchantNames = true; // mark as set
     return this;
   }
 
@@ -560,6 +668,7 @@ public MerchantNamesRestriction getMerchantNames() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMerchantNames(MerchantNamesRestriction merchantNames) {
     this.merchantNames = merchantNames;
+    isSetMerchantNames = true; // mark as set
   }
 
   /**
@@ -570,6 +679,7 @@ public void setMerchantNames(MerchantNamesRestriction merchantNames) {
    */
   public TransactionRuleRestrictions merchants(MerchantsRestriction merchants) {
     this.merchants = merchants;
+    isSetMerchants = true; // mark as set
     return this;
   }
 
@@ -593,6 +703,7 @@ public MerchantsRestriction getMerchants() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMerchants(MerchantsRestriction merchants) {
     this.merchants = merchants;
+    isSetMerchants = true; // mark as set
   }
 
   /**
@@ -603,6 +714,7 @@ public void setMerchants(MerchantsRestriction merchants) {
    */
   public TransactionRuleRestrictions processingTypes(ProcessingTypesRestriction processingTypes) {
     this.processingTypes = processingTypes;
+    isSetProcessingTypes = true; // mark as set
     return this;
   }
 
@@ -626,6 +738,7 @@ public ProcessingTypesRestriction getProcessingTypes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setProcessingTypes(ProcessingTypesRestriction processingTypes) {
     this.processingTypes = processingTypes;
+    isSetProcessingTypes = true; // mark as set
   }
 
   /**
@@ -636,6 +749,7 @@ public void setProcessingTypes(ProcessingTypesRestriction processingTypes) {
    */
   public TransactionRuleRestrictions riskScores(RiskScoresRestriction riskScores) {
     this.riskScores = riskScores;
+    isSetRiskScores = true; // mark as set
     return this;
   }
 
@@ -659,6 +773,7 @@ public RiskScoresRestriction getRiskScores() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRiskScores(RiskScoresRestriction riskScores) {
     this.riskScores = riskScores;
+    isSetRiskScores = true; // mark as set
   }
 
   /**
@@ -670,6 +785,7 @@ public void setRiskScores(RiskScoresRestriction riskScores) {
   public TransactionRuleRestrictions sameAmountRestriction(
       SameAmountRestriction sameAmountRestriction) {
     this.sameAmountRestriction = sameAmountRestriction;
+    isSetSameAmountRestriction = true; // mark as set
     return this;
   }
 
@@ -693,6 +809,7 @@ public SameAmountRestriction getSameAmountRestriction() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSameAmountRestriction(SameAmountRestriction sameAmountRestriction) {
     this.sameAmountRestriction = sameAmountRestriction;
+    isSetSameAmountRestriction = true; // mark as set
   }
 
   /**
@@ -704,6 +821,7 @@ public void setSameAmountRestriction(SameAmountRestriction sameAmountRestriction
   public TransactionRuleRestrictions sameCounterpartyRestriction(
       SameCounterpartyRestriction sameCounterpartyRestriction) {
     this.sameCounterpartyRestriction = sameCounterpartyRestriction;
+    isSetSameCounterpartyRestriction = true; // mark as set
     return this;
   }
 
@@ -728,6 +846,7 @@ public SameCounterpartyRestriction getSameCounterpartyRestriction() {
   public void setSameCounterpartyRestriction(
       SameCounterpartyRestriction sameCounterpartyRestriction) {
     this.sameCounterpartyRestriction = sameCounterpartyRestriction;
+    isSetSameCounterpartyRestriction = true; // mark as set
   }
 
   /**
@@ -739,6 +858,7 @@ public void setSameCounterpartyRestriction(
   public TransactionRuleRestrictions sourceAccountTypes(
       SourceAccountTypesRestriction sourceAccountTypes) {
     this.sourceAccountTypes = sourceAccountTypes;
+    isSetSourceAccountTypes = true; // mark as set
     return this;
   }
 
@@ -762,6 +882,7 @@ public SourceAccountTypesRestriction getSourceAccountTypes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSourceAccountTypes(SourceAccountTypesRestriction sourceAccountTypes) {
     this.sourceAccountTypes = sourceAccountTypes;
+    isSetSourceAccountTypes = true; // mark as set
   }
 
   /**
@@ -772,6 +893,7 @@ public void setSourceAccountTypes(SourceAccountTypesRestriction sourceAccountTyp
    */
   public TransactionRuleRestrictions timeOfDay(TimeOfDayRestriction timeOfDay) {
     this.timeOfDay = timeOfDay;
+    isSetTimeOfDay = true; // mark as set
     return this;
   }
 
@@ -795,6 +917,7 @@ public TimeOfDayRestriction getTimeOfDay() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTimeOfDay(TimeOfDayRestriction timeOfDay) {
     this.timeOfDay = timeOfDay;
+    isSetTimeOfDay = true; // mark as set
   }
 
   /**
@@ -805,6 +928,7 @@ public void setTimeOfDay(TimeOfDayRestriction timeOfDay) {
    */
   public TransactionRuleRestrictions tokenRequestors(TokenRequestorsRestriction tokenRequestors) {
     this.tokenRequestors = tokenRequestors;
+    isSetTokenRequestors = true; // mark as set
     return this;
   }
 
@@ -828,6 +952,7 @@ public TokenRequestorsRestriction getTokenRequestors() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTokenRequestors(TokenRequestorsRestriction tokenRequestors) {
     this.tokenRequestors = tokenRequestors;
+    isSetTokenRequestors = true; // mark as set
   }
 
   /**
@@ -838,6 +963,7 @@ public void setTokenRequestors(TokenRequestorsRestriction tokenRequestors) {
    */
   public TransactionRuleRestrictions totalAmount(TotalAmountRestriction totalAmount) {
     this.totalAmount = totalAmount;
+    isSetTotalAmount = true; // mark as set
     return this;
   }
 
@@ -861,6 +987,7 @@ public TotalAmountRestriction getTotalAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTotalAmount(TotalAmountRestriction totalAmount) {
     this.totalAmount = totalAmount;
+    isSetTotalAmount = true; // mark as set
   }
 
   /**
@@ -872,6 +999,7 @@ public void setTotalAmount(TotalAmountRestriction totalAmount) {
   public TransactionRuleRestrictions walletProviderAccountScore(
       WalletProviderAccountScoreRestriction walletProviderAccountScore) {
     this.walletProviderAccountScore = walletProviderAccountScore;
+    isSetWalletProviderAccountScore = true; // mark as set
     return this;
   }
 
@@ -896,6 +1024,7 @@ public WalletProviderAccountScoreRestriction getWalletProviderAccountScore() {
   public void setWalletProviderAccountScore(
       WalletProviderAccountScoreRestriction walletProviderAccountScore) {
     this.walletProviderAccountScore = walletProviderAccountScore;
+    isSetWalletProviderAccountScore = true; // mark as set
   }
 
   /**
@@ -907,6 +1036,7 @@ public void setWalletProviderAccountScore(
   public TransactionRuleRestrictions walletProviderDeviceScore(
       WalletProviderDeviceScore walletProviderDeviceScore) {
     this.walletProviderDeviceScore = walletProviderDeviceScore;
+    isSetWalletProviderDeviceScore = true; // mark as set
     return this;
   }
 
@@ -930,6 +1060,7 @@ public WalletProviderDeviceScore getWalletProviderDeviceScore() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setWalletProviderDeviceScore(WalletProviderDeviceScore walletProviderDeviceScore) {
     this.walletProviderDeviceScore = walletProviderDeviceScore;
+    isSetWalletProviderDeviceScore = true; // mark as set
   }
 
   /**
@@ -941,6 +1072,7 @@ public void setWalletProviderDeviceScore(WalletProviderDeviceScore walletProvide
   public TransactionRuleRestrictions walletProviderDeviceType(
       WalletProviderDeviceType walletProviderDeviceType) {
     this.walletProviderDeviceType = walletProviderDeviceType;
+    isSetWalletProviderDeviceType = true; // mark as set
     return this;
   }
 
@@ -964,6 +1096,27 @@ public WalletProviderDeviceType getWalletProviderDeviceType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setWalletProviderDeviceType(WalletProviderDeviceType walletProviderDeviceType) {
     this.walletProviderDeviceType = walletProviderDeviceType;
+    isSetWalletProviderDeviceType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRuleRestrictions includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRuleRestrictions object is equal to o. */
@@ -1102,6 +1255,104 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetActiveNetworkTokens) {
+      addIfNull(nulls, JSON_PROPERTY_ACTIVE_NETWORK_TOKENS, this.activeNetworkTokens);
+    }
+    if (isSetBrandVariants) {
+      addIfNull(nulls, JSON_PROPERTY_BRAND_VARIANTS, this.brandVariants);
+    }
+    if (isSetCounterpartyBank) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY_BANK, this.counterpartyBank);
+    }
+    if (isSetCounterpartyTypes) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY_TYPES, this.counterpartyTypes);
+    }
+    if (isSetCountries) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRIES, this.countries);
+    }
+    if (isSetDayOfWeek) {
+      addIfNull(nulls, JSON_PROPERTY_DAY_OF_WEEK, this.dayOfWeek);
+    }
+    if (isSetDifferentCurrencies) {
+      addIfNull(nulls, JSON_PROPERTY_DIFFERENT_CURRENCIES, this.differentCurrencies);
+    }
+    if (isSetEntryModes) {
+      addIfNull(nulls, JSON_PROPERTY_ENTRY_MODES, this.entryModes);
+    }
+    if (isSetInternationalTransaction) {
+      addIfNull(nulls, JSON_PROPERTY_INTERNATIONAL_TRANSACTION, this.internationalTransaction);
+    }
+    if (isSetMatchingTransactions) {
+      addIfNull(nulls, JSON_PROPERTY_MATCHING_TRANSACTIONS, this.matchingTransactions);
+    }
+    if (isSetMatchingValues) {
+      addIfNull(nulls, JSON_PROPERTY_MATCHING_VALUES, this.matchingValues);
+    }
+    if (isSetMccs) {
+      addIfNull(nulls, JSON_PROPERTY_MCCS, this.mccs);
+    }
+    if (isSetMerchantNames) {
+      addIfNull(nulls, JSON_PROPERTY_MERCHANT_NAMES, this.merchantNames);
+    }
+    if (isSetMerchants) {
+      addIfNull(nulls, JSON_PROPERTY_MERCHANTS, this.merchants);
+    }
+    if (isSetProcessingTypes) {
+      addIfNull(nulls, JSON_PROPERTY_PROCESSING_TYPES, this.processingTypes);
+    }
+    if (isSetRiskScores) {
+      addIfNull(nulls, JSON_PROPERTY_RISK_SCORES, this.riskScores);
+    }
+    if (isSetSameAmountRestriction) {
+      addIfNull(nulls, JSON_PROPERTY_SAME_AMOUNT_RESTRICTION, this.sameAmountRestriction);
+    }
+    if (isSetSameCounterpartyRestriction) {
+      addIfNull(
+          nulls, JSON_PROPERTY_SAME_COUNTERPARTY_RESTRICTION, this.sameCounterpartyRestriction);
+    }
+    if (isSetSourceAccountTypes) {
+      addIfNull(nulls, JSON_PROPERTY_SOURCE_ACCOUNT_TYPES, this.sourceAccountTypes);
+    }
+    if (isSetTimeOfDay) {
+      addIfNull(nulls, JSON_PROPERTY_TIME_OF_DAY, this.timeOfDay);
+    }
+    if (isSetTokenRequestors) {
+      addIfNull(nulls, JSON_PROPERTY_TOKEN_REQUESTORS, this.tokenRequestors);
+    }
+    if (isSetTotalAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TOTAL_AMOUNT, this.totalAmount);
+    }
+    if (isSetWalletProviderAccountScore) {
+      addIfNull(
+          nulls, JSON_PROPERTY_WALLET_PROVIDER_ACCOUNT_SCORE, this.walletProviderAccountScore);
+    }
+    if (isSetWalletProviderDeviceScore) {
+      addIfNull(nulls, JSON_PROPERTY_WALLET_PROVIDER_DEVICE_SCORE, this.walletProviderDeviceScore);
+    }
+    if (isSetWalletProviderDeviceType) {
+      addIfNull(nulls, JSON_PROPERTY_WALLET_PROVIDER_DEVICE_TYPE, this.walletProviderDeviceType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRuleRestrictions given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransactionRulesResponse.java b/src/main/java/com/adyen/model/balanceplatform/TransactionRulesResponse.java
index cae4762b0..dddc2c2c9 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransactionRulesResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransactionRulesResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class TransactionRulesResponse {
   public static final String JSON_PROPERTY_TRANSACTION_RULES = "transactionRules";
   private List<TransactionRule> transactionRules;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransactionRules = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransactionRulesResponse() {}
 
   /**
@@ -35,6 +46,7 @@ public TransactionRulesResponse() {}
    */
   public TransactionRulesResponse transactionRules(List<TransactionRule> transactionRules) {
     this.transactionRules = transactionRules;
+    isSetTransactionRules = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<TransactionRule> getTransactionRules() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransactionRules(List<TransactionRule> transactionRules) {
     this.transactionRules = transactionRules;
+    isSetTransactionRules = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransactionRulesResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransactionRulesResponse object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetTransactionRules) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSACTION_RULES, this.transactionRules);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransactionRulesResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransferLimit.java b/src/main/java/com/adyen/model/balanceplatform/TransferLimit.java
index 1b14a390b..fbbf043ba 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransferLimit.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransferLimit.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -34,30 +36,63 @@ public class TransferLimit {
   public static final String JSON_PROPERTY_AMOUNT = "amount";
   private Amount amount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAmount = false;
+
   public static final String JSON_PROPERTY_ENDS_AT = "endsAt";
   private OffsetDateTime endsAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEndsAt = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_LIMIT_STATUS = "limitStatus";
   private LimitStatus limitStatus;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetLimitStatus = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_SCA_INFORMATION = "scaInformation";
   private ScaInformation scaInformation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScaInformation = false;
+
   public static final String JSON_PROPERTY_SCOPE = "scope";
   private Scope scope;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetScope = false;
+
   public static final String JSON_PROPERTY_STARTS_AT = "startsAt";
   private OffsetDateTime startsAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStartsAt = false;
+
   public static final String JSON_PROPERTY_TRANSFER_TYPE = "transferType";
   private TransferType transferType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransferLimit() {}
 
   /**
@@ -68,6 +103,7 @@ public TransferLimit() {}
    */
   public TransferLimit amount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
     return this;
   }
 
@@ -91,6 +127,7 @@ public Amount getAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAmount(Amount amount) {
     this.amount = amount;
+    isSetAmount = true; // mark as set
   }
 
   /**
@@ -105,6 +142,7 @@ public void setAmount(Amount amount) {
    */
   public TransferLimit endsAt(OffsetDateTime endsAt) {
     this.endsAt = endsAt;
+    isSetEndsAt = true; // mark as set
     return this;
   }
 
@@ -136,6 +174,7 @@ public OffsetDateTime getEndsAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setEndsAt(OffsetDateTime endsAt) {
     this.endsAt = endsAt;
+    isSetEndsAt = true; // mark as set
   }
 
   /**
@@ -146,6 +185,7 @@ public void setEndsAt(OffsetDateTime endsAt) {
    */
   public TransferLimit id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -169,6 +209,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -179,6 +220,7 @@ public void setId(String id) {
    */
   public TransferLimit limitStatus(LimitStatus limitStatus) {
     this.limitStatus = limitStatus;
+    isSetLimitStatus = true; // mark as set
     return this;
   }
 
@@ -202,6 +244,7 @@ public LimitStatus getLimitStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setLimitStatus(LimitStatus limitStatus) {
     this.limitStatus = limitStatus;
+    isSetLimitStatus = true; // mark as set
   }
 
   /**
@@ -212,6 +255,7 @@ public void setLimitStatus(LimitStatus limitStatus) {
    */
   public TransferLimit reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -235,6 +279,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -245,6 +290,7 @@ public void setReference(String reference) {
    */
   public TransferLimit scaInformation(ScaInformation scaInformation) {
     this.scaInformation = scaInformation;
+    isSetScaInformation = true; // mark as set
     return this;
   }
 
@@ -268,6 +314,7 @@ public ScaInformation getScaInformation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScaInformation(ScaInformation scaInformation) {
     this.scaInformation = scaInformation;
+    isSetScaInformation = true; // mark as set
   }
 
   /**
@@ -278,6 +325,7 @@ public void setScaInformation(ScaInformation scaInformation) {
    */
   public TransferLimit scope(Scope scope) {
     this.scope = scope;
+    isSetScope = true; // mark as set
     return this;
   }
 
@@ -301,6 +349,7 @@ public Scope getScope() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setScope(Scope scope) {
     this.scope = scope;
+    isSetScope = true; // mark as set
   }
 
   /**
@@ -315,6 +364,7 @@ public void setScope(Scope scope) {
    */
   public TransferLimit startsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
     return this;
   }
 
@@ -346,6 +396,7 @@ public OffsetDateTime getStartsAt() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStartsAt(OffsetDateTime startsAt) {
     this.startsAt = startsAt;
+    isSetStartsAt = true; // mark as set
   }
 
   /**
@@ -356,6 +407,7 @@ public void setStartsAt(OffsetDateTime startsAt) {
    */
   public TransferLimit transferType(TransferType transferType) {
     this.transferType = transferType;
+    isSetTransferType = true; // mark as set
     return this;
   }
 
@@ -379,6 +431,27 @@ public TransferType getTransferType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferType(TransferType transferType) {
     this.transferType = transferType;
+    isSetTransferType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransferLimit includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransferLimit object is equal to o. */
@@ -435,6 +508,54 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_AMOUNT, this.amount);
+    }
+    if (isSetEndsAt) {
+      addIfNull(nulls, JSON_PROPERTY_ENDS_AT, this.endsAt);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetLimitStatus) {
+      addIfNull(nulls, JSON_PROPERTY_LIMIT_STATUS, this.limitStatus);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetScaInformation) {
+      addIfNull(nulls, JSON_PROPERTY_SCA_INFORMATION, this.scaInformation);
+    }
+    if (isSetScope) {
+      addIfNull(nulls, JSON_PROPERTY_SCOPE, this.scope);
+    }
+    if (isSetStartsAt) {
+      addIfNull(nulls, JSON_PROPERTY_STARTS_AT, this.startsAt);
+    }
+    if (isSetTransferType) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_TYPE, this.transferType);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransferLimit given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransferLimitListResponse.java b/src/main/java/com/adyen/model/balanceplatform/TransferLimitListResponse.java
index e6cbc46d4..0680c6d9a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransferLimitListResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransferLimitListResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class TransferLimitListResponse {
   public static final String JSON_PROPERTY_TRANSFER_LIMITS = "transferLimits";
   private List<TransferLimit> transferLimits;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferLimits = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransferLimitListResponse() {}
 
   /**
@@ -35,6 +46,7 @@ public TransferLimitListResponse() {}
    */
   public TransferLimitListResponse transferLimits(List<TransferLimit> transferLimits) {
     this.transferLimits = transferLimits;
+    isSetTransferLimits = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<TransferLimit> getTransferLimits() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferLimits(List<TransferLimit> transferLimits) {
     this.transferLimits = transferLimits;
+    isSetTransferLimits = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransferLimitListResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransferLimitListResponse object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetTransferLimits) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_LIMITS, this.transferLimits);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransferLimitListResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransferRoute.java b/src/main/java/com/adyen/model/balanceplatform/TransferRoute.java
index 723c0542e..783e44d8a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransferRoute.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransferRoute.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -96,22 +98,31 @@ public static CategoryEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private CategoryEnum category;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCategory = false;
+
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   /**
    * The priority for the bank transfer. This sets the speed at which the transfer is sent and the
-   * fees that you have to pay. Possible values: * **regular**: for normal, low-value transactions.
-   * * **fast**: a faster way to transfer funds, but the fees are higher. Recommended for
-   * high-priority, low-value transactions. * **wire**: the fastest way to transfer funds, but this
+   * fees that you have to pay. Possible values: * **regular**: For normal, low-value transactions.
+   * * **fast**: A faster way to transfer funds, but the fees are higher. Recommended for
+   * high-priority, low-value transactions. * **wire**: The fastest way to transfer funds, but this
    * has the highest fees. Recommended for high-priority, high-value transactions. * **instant**:
-   * for instant funds transfers within the United States and in [SEPA
+   * For instant funds transfers within the United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    */
   public enum PriorityEnum {
@@ -165,9 +176,21 @@ public static PriorityEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PRIORITY = "priority";
   private PriorityEnum priority;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPriority = false;
+
   public static final String JSON_PROPERTY_REQUIREMENTS = "requirements";
   private List<TransferRouteRequirementsInner> requirements;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRequirements = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransferRoute() {}
 
   /**
@@ -182,6 +205,7 @@ public TransferRoute() {}
    */
   public TransferRoute category(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
     return this;
   }
 
@@ -213,6 +237,7 @@ public CategoryEnum getCategory() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCategory(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
   }
 
   /**
@@ -225,6 +250,7 @@ public void setCategory(CategoryEnum category) {
    */
   public TransferRoute country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -252,6 +278,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -263,6 +290,7 @@ public void setCountry(String country) {
    */
   public TransferRoute currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -288,60 +316,62 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
    * The priority for the bank transfer. This sets the speed at which the transfer is sent and the
-   * fees that you have to pay. Possible values: * **regular**: for normal, low-value transactions.
-   * * **fast**: a faster way to transfer funds, but the fees are higher. Recommended for
-   * high-priority, low-value transactions. * **wire**: the fastest way to transfer funds, but this
+   * fees that you have to pay. Possible values: * **regular**: For normal, low-value transactions.
+   * * **fast**: A faster way to transfer funds, but the fees are higher. Recommended for
+   * high-priority, low-value transactions. * **wire**: The fastest way to transfer funds, but this
    * has the highest fees. Recommended for high-priority, high-value transactions. * **instant**:
-   * for instant funds transfers within the United States and in [SEPA
+   * For instant funds transfers within the United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @param priority The priority for the bank transfer. This sets the speed at which the transfer
-   *     is sent and the fees that you have to pay. Possible values: * **regular**: for normal,
-   *     low-value transactions. * **fast**: a faster way to transfer funds, but the fees are
-   *     higher. Recommended for high-priority, low-value transactions. * **wire**: the fastest way
+   *     is sent and the fees that you have to pay. Possible values: * **regular**: For normal,
+   *     low-value transactions. * **fast**: A faster way to transfer funds, but the fees are
+   *     higher. Recommended for high-priority, low-value transactions. * **wire**: The fastest way
    *     to transfer funds, but this has the highest fees. Recommended for high-priority, high-value
-   *     transactions. * **instant**: for instant funds transfers within the United States and in
+   *     transactions. * **instant**: For instant funds transfers within the United States and in
    *     [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    * @return the current {@code TransferRoute} instance, allowing for method chaining
    */
   public TransferRoute priority(PriorityEnum priority) {
     this.priority = priority;
+    isSetPriority = true; // mark as set
     return this;
   }
 
   /**
    * The priority for the bank transfer. This sets the speed at which the transfer is sent and the
-   * fees that you have to pay. Possible values: * **regular**: for normal, low-value transactions.
-   * * **fast**: a faster way to transfer funds, but the fees are higher. Recommended for
-   * high-priority, low-value transactions. * **wire**: the fastest way to transfer funds, but this
+   * fees that you have to pay. Possible values: * **regular**: For normal, low-value transactions.
+   * * **fast**: A faster way to transfer funds, but the fees are higher. Recommended for
+   * high-priority, low-value transactions. * **wire**: The fastest way to transfer funds, but this
    * has the highest fees. Recommended for high-priority, high-value transactions. * **instant**:
-   * for instant funds transfers within the United States and in [SEPA
+   * For instant funds transfers within the United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @return priority The priority for the bank transfer. This sets the speed at which the transfer
-   *     is sent and the fees that you have to pay. Possible values: * **regular**: for normal,
-   *     low-value transactions. * **fast**: a faster way to transfer funds, but the fees are
-   *     higher. Recommended for high-priority, low-value transactions. * **wire**: the fastest way
+   *     is sent and the fees that you have to pay. Possible values: * **regular**: For normal,
+   *     low-value transactions. * **fast**: A faster way to transfer funds, but the fees are
+   *     higher. Recommended for high-priority, low-value transactions. * **wire**: The fastest way
    *     to transfer funds, but this has the highest fees. Recommended for high-priority, high-value
-   *     transactions. * **instant**: for instant funds transfers within the United States and in
+   *     transactions. * **instant**: For instant funds transfers within the United States and in
    *     [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    */
   @JsonProperty(JSON_PROPERTY_PRIORITY)
@@ -352,32 +382,33 @@ public PriorityEnum getPriority() {
 
   /**
    * The priority for the bank transfer. This sets the speed at which the transfer is sent and the
-   * fees that you have to pay. Possible values: * **regular**: for normal, low-value transactions.
-   * * **fast**: a faster way to transfer funds, but the fees are higher. Recommended for
-   * high-priority, low-value transactions. * **wire**: the fastest way to transfer funds, but this
+   * fees that you have to pay. Possible values: * **regular**: For normal, low-value transactions.
+   * * **fast**: A faster way to transfer funds, but the fees are higher. Recommended for
+   * high-priority, low-value transactions. * **wire**: The fastest way to transfer funds, but this
    * has the highest fees. Recommended for high-priority, high-value transactions. * **instant**:
-   * for instant funds transfers within the United States and in [SEPA
+   * For instant funds transfers within the United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @param priority The priority for the bank transfer. This sets the speed at which the transfer
-   *     is sent and the fees that you have to pay. Possible values: * **regular**: for normal,
-   *     low-value transactions. * **fast**: a faster way to transfer funds, but the fees are
-   *     higher. Recommended for high-priority, low-value transactions. * **wire**: the fastest way
+   *     is sent and the fees that you have to pay. Possible values: * **regular**: For normal,
+   *     low-value transactions. * **fast**: A faster way to transfer funds, but the fees are
+   *     higher. Recommended for high-priority, low-value transactions. * **wire**: The fastest way
    *     to transfer funds, but this has the highest fees. Recommended for high-priority, high-value
-   *     transactions. * **instant**: for instant funds transfers within the United States and in
+   *     transactions. * **instant**: For instant funds transfers within the United States and in
    *     [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    */
   @JsonProperty(JSON_PROPERTY_PRIORITY)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPriority(PriorityEnum priority) {
     this.priority = priority;
+    isSetPriority = true; // mark as set
   }
 
   /**
@@ -394,6 +425,7 @@ public void setPriority(PriorityEnum priority) {
    */
   public TransferRoute requirements(List<TransferRouteRequirementsInner> requirements) {
     this.requirements = requirements;
+    isSetRequirements = true; // mark as set
     return this;
   }
 
@@ -437,6 +469,27 @@ public List<TransferRouteRequirementsInner> getRequirements() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRequirements(List<TransferRouteRequirementsInner> requirements) {
     this.requirements = requirements;
+    isSetRequirements = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransferRoute includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransferRoute object is equal to o. */
@@ -484,6 +537,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCategory) {
+      addIfNull(nulls, JSON_PROPERTY_CATEGORY, this.category);
+    }
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetPriority) {
+      addIfNull(nulls, JSON_PROPERTY_PRIORITY, this.priority);
+    }
+    if (isSetRequirements) {
+      addIfNull(nulls, JSON_PROPERTY_REQUIREMENTS, this.requirements);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransferRoute given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransferRouteRequest.java b/src/main/java/com/adyen/model/balanceplatform/TransferRouteRequest.java
index 0809b00a2..3de00e506 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransferRouteRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransferRouteRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -37,9 +39,15 @@ public class TransferRouteRequest {
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_BALANCE_PLATFORM = "balancePlatform";
   private String balancePlatform;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalancePlatform = false;
+
   /**
    * The type of transfer. Possible values: - **bank**: Transfer to a [transfer
    * instrument](https://docs.adyen.com/api-explorer/#/legalentity/latest/post/transferInstruments__resParam_id)
@@ -86,15 +94,27 @@ public static CategoryEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private CategoryEnum category;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCategory = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY = "counterparty";
   private Counterparty counterparty;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterparty = false;
+
   public static final String JSON_PROPERTY_COUNTRY = "country";
   private String country;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCountry = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   /** Gets or Sets priorities */
   public enum PrioritiesEnum {
     CROSSBORDER(String.valueOf("crossBorder")),
@@ -147,6 +167,15 @@ public static PrioritiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PRIORITIES = "priorities";
   private List<PrioritiesEnum> priorities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPriorities = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransferRouteRequest() {}
 
   /**
@@ -161,6 +190,7 @@ public TransferRouteRequest() {}
    */
   public TransferRouteRequest balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -192,6 +222,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -203,6 +234,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public TransferRouteRequest balancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
     return this;
   }
 
@@ -228,6 +260,7 @@ public String getBalancePlatform() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalancePlatform(String balancePlatform) {
     this.balancePlatform = balancePlatform;
+    isSetBalancePlatform = true; // mark as set
   }
 
   /**
@@ -242,6 +275,7 @@ public void setBalancePlatform(String balancePlatform) {
    */
   public TransferRouteRequest category(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
     return this;
   }
 
@@ -273,6 +307,7 @@ public CategoryEnum getCategory() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCategory(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
   }
 
   /**
@@ -283,6 +318,7 @@ public void setCategory(CategoryEnum category) {
    */
   public TransferRouteRequest counterparty(Counterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
     return this;
   }
 
@@ -306,6 +342,7 @@ public Counterparty getCounterparty() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterparty(Counterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
   }
 
   /**
@@ -320,6 +357,7 @@ public void setCounterparty(Counterparty counterparty) {
    */
   public TransferRouteRequest country(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
     return this;
   }
 
@@ -351,6 +389,7 @@ public String getCountry() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCountry(String country) {
     this.country = country;
+    isSetCountry = true; // mark as set
   }
 
   /**
@@ -362,6 +401,7 @@ public void setCountry(String country) {
    */
   public TransferRouteRequest currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -387,36 +427,38 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
    * The list of priorities for the bank transfer. Priorities set the speed at which the transfer is
    * sent and the fees that you have to pay. Multiple values can be provided. Possible values: *
-   * **regular**: for normal, low-value transactions. * **fast**: a faster way to transfer funds,
-   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: the
+   * **regular**: For normal, low-value transactions. * **fast**: A faster way to transfer funds,
+   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: The
    * fastest way to transfer funds, but this has the highest fees. Recommended for high-priority,
-   * high-value transactions. * **instant**: for instant funds transfers within the United States
+   * high-value transactions. * **instant**: For instant funds transfers within the United States
    * and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @param priorities The list of priorities for the bank transfer. Priorities set the speed at
    *     which the transfer is sent and the fees that you have to pay. Multiple values can be
-   *     provided. Possible values: * **regular**: for normal, low-value transactions. * **fast**: a
+   *     provided. Possible values: * **regular**: For normal, low-value transactions. * **fast**: A
    *     faster way to transfer funds, but the fees are higher. Recommended for high-priority,
-   *     low-value transactions. * **wire**: the fastest way to transfer funds, but this has the
-   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: for
+   *     low-value transactions. * **wire**: The fastest way to transfer funds, but this has the
+   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: For
    *     instant funds transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    * @return the current {@code TransferRouteRequest} instance, allowing for method chaining
    */
   public TransferRouteRequest priorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
     return this;
   }
 
@@ -431,26 +473,26 @@ public TransferRouteRequest addPrioritiesItem(PrioritiesEnum prioritiesItem) {
   /**
    * The list of priorities for the bank transfer. Priorities set the speed at which the transfer is
    * sent and the fees that you have to pay. Multiple values can be provided. Possible values: *
-   * **regular**: for normal, low-value transactions. * **fast**: a faster way to transfer funds,
-   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: the
+   * **regular**: For normal, low-value transactions. * **fast**: A faster way to transfer funds,
+   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: The
    * fastest way to transfer funds, but this has the highest fees. Recommended for high-priority,
-   * high-value transactions. * **instant**: for instant funds transfers within the United States
+   * high-value transactions. * **instant**: For instant funds transfers within the United States
    * and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @return priorities The list of priorities for the bank transfer. Priorities set the speed at
    *     which the transfer is sent and the fees that you have to pay. Multiple values can be
-   *     provided. Possible values: * **regular**: for normal, low-value transactions. * **fast**: a
+   *     provided. Possible values: * **regular**: For normal, low-value transactions. * **fast**: A
    *     faster way to transfer funds, but the fees are higher. Recommended for high-priority,
-   *     low-value transactions. * **wire**: the fastest way to transfer funds, but this has the
-   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: for
+   *     low-value transactions. * **wire**: The fastest way to transfer funds, but this has the
+   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: For
    *     instant funds transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    */
   @JsonProperty(JSON_PROPERTY_PRIORITIES)
@@ -462,32 +504,53 @@ public List<PrioritiesEnum> getPriorities() {
   /**
    * The list of priorities for the bank transfer. Priorities set the speed at which the transfer is
    * sent and the fees that you have to pay. Multiple values can be provided. Possible values: *
-   * **regular**: for normal, low-value transactions. * **fast**: a faster way to transfer funds,
-   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: the
+   * **regular**: For normal, low-value transactions. * **fast**: A faster way to transfer funds,
+   * but the fees are higher. Recommended for high-priority, low-value transactions. * **wire**: The
    * fastest way to transfer funds, but this has the highest fees. Recommended for high-priority,
-   * high-value transactions. * **instant**: for instant funds transfers within the United States
+   * high-value transactions. * **instant**: For instant funds transfers within the United States
    * and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN).
    *
    * @param priorities The list of priorities for the bank transfer. Priorities set the speed at
    *     which the transfer is sent and the fees that you have to pay. Multiple values can be
-   *     provided. Possible values: * **regular**: for normal, low-value transactions. * **fast**: a
+   *     provided. Possible values: * **regular**: For normal, low-value transactions. * **fast**: A
    *     faster way to transfer funds, but the fees are higher. Recommended for high-priority,
-   *     low-value transactions. * **wire**: the fastest way to transfer funds, but this has the
-   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: for
+   *     low-value transactions. * **wire**: The fastest way to transfer funds, but this has the
+   *     highest fees. Recommended for high-priority, high-value transactions. * **instant**: For
    *     instant funds transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN).
    */
   @JsonProperty(JSON_PROPERTY_PRIORITIES)
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPriorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransferRouteRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransferRouteRequest object is equal to o. */
@@ -540,6 +603,48 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetBalancePlatform) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_PLATFORM, this.balancePlatform);
+    }
+    if (isSetCategory) {
+      addIfNull(nulls, JSON_PROPERTY_CATEGORY, this.category);
+    }
+    if (isSetCounterparty) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY, this.counterparty);
+    }
+    if (isSetCountry) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTRY, this.country);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetPriorities) {
+      addIfNull(nulls, JSON_PROPERTY_PRIORITIES, this.priorities);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransferRouteRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/TransferRouteResponse.java b/src/main/java/com/adyen/model/balanceplatform/TransferRouteResponse.java
index 70da671ca..d4b57f44b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/TransferRouteResponse.java
+++ b/src/main/java/com/adyen/model/balanceplatform/TransferRouteResponse.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class TransferRouteResponse {
   public static final String JSON_PROPERTY_TRANSFER_ROUTES = "transferRoutes";
   private List<TransferRoute> transferRoutes;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTransferRoutes = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public TransferRouteResponse() {}
 
   /**
@@ -37,6 +48,7 @@ public TransferRouteResponse() {}
    */
   public TransferRouteResponse transferRoutes(List<TransferRoute> transferRoutes) {
     this.transferRoutes = transferRoutes;
+    isSetTransferRoutes = true; // mark as set
     return this;
   }
 
@@ -72,6 +84,27 @@ public List<TransferRoute> getTransferRoutes() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTransferRoutes(List<TransferRoute> transferRoutes) {
     this.transferRoutes = transferRoutes;
+    isSetTransferRoutes = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public TransferRouteResponse includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this TransferRouteResponse object is equal to o. */
@@ -111,6 +144,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetTransferRoutes) {
+      addIfNull(nulls, JSON_PROPERTY_TRANSFER_ROUTES, this.transferRoutes);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of TransferRouteResponse given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/UKLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/UKLocalAccountIdentification.java
index c2179eeb7..3feca116b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/UKLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/UKLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -31,9 +33,15 @@ public class UKLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   public static final String JSON_PROPERTY_SORT_CODE = "sortCode";
   private String sortCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSortCode = false;
+
   /** **ukLocal** */
   public enum TypeEnum {
     UKLOCAL(String.valueOf("ukLocal"));
@@ -76,6 +84,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public UKLocalAccountIdentification() {}
 
   /**
@@ -86,6 +103,7 @@ public UKLocalAccountIdentification() {}
    */
   public UKLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -109,6 +127,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -121,6 +140,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public UKLocalAccountIdentification sortCode(String sortCode) {
     this.sortCode = sortCode;
+    isSetSortCode = true; // mark as set
     return this;
   }
 
@@ -148,6 +168,7 @@ public String getSortCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSortCode(String sortCode) {
     this.sortCode = sortCode;
+    isSetSortCode = true; // mark as set
   }
 
   /**
@@ -158,6 +179,7 @@ public void setSortCode(String sortCode) {
    */
   public UKLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -181,6 +203,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public UKLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this UKLocalAccountIdentification object is equal to o. */
@@ -224,6 +267,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetSortCode) {
+      addIfNull(nulls, JSON_PROPERTY_SORT_CODE, this.sortCode);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of UKLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/USInstantPayoutAddressRequirement.java b/src/main/java/com/adyen/model/balanceplatform/USInstantPayoutAddressRequirement.java
index 08b0c1d1a..e012153da 100644
--- a/src/main/java/com/adyen/model/balanceplatform/USInstantPayoutAddressRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/USInstantPayoutAddressRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class USInstantPayoutAddressRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **usInstantPayoutAddressRequirement** */
   public enum TypeEnum {
     USINSTANTPAYOUTADDRESSREQUIREMENT(String.valueOf("usInstantPayoutAddressRequirement"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public USInstantPayoutAddressRequirement() {}
 
   /**
@@ -85,6 +99,7 @@ public USInstantPayoutAddressRequirement() {}
    */
   public USInstantPayoutAddressRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -112,6 +127,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -123,6 +139,7 @@ public void setDescription(String description) {
    */
   public USInstantPayoutAddressRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -146,6 +163,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public USInstantPayoutAddressRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this USInstantPayoutAddressRequirement object is equal to o. */
@@ -188,6 +226,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of USInstantPayoutAddressRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/USInternationalAchAddressRequirement.java b/src/main/java/com/adyen/model/balanceplatform/USInternationalAchAddressRequirement.java
index 2c4fc47bd..a769abf7a 100644
--- a/src/main/java/com/adyen/model/balanceplatform/USInternationalAchAddressRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/USInternationalAchAddressRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class USInternationalAchAddressRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **usInternationalAchAddressRequirement** */
   public enum TypeEnum {
     USINTERNATIONALACHADDRESSREQUIREMENT(String.valueOf("usInternationalAchAddressRequirement"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public USInternationalAchAddressRequirement() {}
 
   /**
@@ -85,6 +99,7 @@ public USInternationalAchAddressRequirement() {}
    */
   public USInternationalAchAddressRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -112,6 +127,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -123,6 +139,7 @@ public void setDescription(String description) {
    */
   public USInternationalAchAddressRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -146,6 +163,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public USInternationalAchAddressRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this USInternationalAchAddressRequirement object is equal to o. */
@@ -188,6 +226,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of USInternationalAchAddressRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/USInternationalAchPriorityRequirement.java b/src/main/java/com/adyen/model/balanceplatform/USInternationalAchPriorityRequirement.java
index e83b85ed3..de7919c7f 100644
--- a/src/main/java/com/adyen/model/balanceplatform/USInternationalAchPriorityRequirement.java
+++ b/src/main/java/com/adyen/model/balanceplatform/USInternationalAchPriorityRequirement.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -30,6 +32,9 @@ public class USInternationalAchPriorityRequirement {
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   /** **usInternationalAchPriorityRequirement** */
   public enum TypeEnum {
     USINTERNATIONALACHPRIORITYREQUIREMENT(String.valueOf("usInternationalAchPriorityRequirement"));
@@ -72,6 +77,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public USInternationalAchPriorityRequirement() {}
 
   /**
@@ -85,6 +99,7 @@ public USInternationalAchPriorityRequirement() {}
    */
   public USInternationalAchPriorityRequirement description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -112,6 +127,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -123,6 +139,7 @@ public void setDescription(String description) {
    */
   public USInternationalAchPriorityRequirement type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -146,6 +163,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public USInternationalAchPriorityRequirement includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this USInternationalAchPriorityRequirement object is equal to o. */
@@ -188,6 +226,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of USInternationalAchPriorityRequirement given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/USLocalAccountIdentification.java b/src/main/java/com/adyen/model/balanceplatform/USLocalAccountIdentification.java
index 9a27421eb..8361b3fd6 100644
--- a/src/main/java/com/adyen/model/balanceplatform/USLocalAccountIdentification.java
+++ b/src/main/java/com/adyen/model/balanceplatform/USLocalAccountIdentification.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class USLocalAccountIdentification {
   public static final String JSON_PROPERTY_ACCOUNT_NUMBER = "accountNumber";
   private String accountNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountNumber = false;
+
   /**
    * The bank account type. Possible values: **checking** or **savings**. Defaults to **checking**.
    */
@@ -78,9 +83,15 @@ public static AccountTypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_ACCOUNT_TYPE = "accountType";
   private AccountTypeEnum accountType;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAccountType = false;
+
   public static final String JSON_PROPERTY_ROUTING_NUMBER = "routingNumber";
   private String routingNumber;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRoutingNumber = false;
+
   /** **usLocal** */
   public enum TypeEnum {
     USLOCAL(String.valueOf("usLocal"));
@@ -123,6 +134,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public USLocalAccountIdentification() {}
 
   /**
@@ -133,6 +153,7 @@ public USLocalAccountIdentification() {}
    */
   public USLocalAccountIdentification accountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
     return this;
   }
 
@@ -156,6 +177,7 @@ public String getAccountNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountNumber(String accountNumber) {
     this.accountNumber = accountNumber;
+    isSetAccountNumber = true; // mark as set
   }
 
   /**
@@ -167,6 +189,7 @@ public void setAccountNumber(String accountNumber) {
    */
   public USLocalAccountIdentification accountType(AccountTypeEnum accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
     return this;
   }
 
@@ -192,6 +215,7 @@ public AccountTypeEnum getAccountType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setAccountType(AccountTypeEnum accountType) {
     this.accountType = accountType;
+    isSetAccountType = true; // mark as set
   }
 
   /**
@@ -205,6 +229,7 @@ public void setAccountType(AccountTypeEnum accountType) {
    */
   public USLocalAccountIdentification routingNumber(String routingNumber) {
     this.routingNumber = routingNumber;
+    isSetRoutingNumber = true; // mark as set
     return this;
   }
 
@@ -234,6 +259,7 @@ public String getRoutingNumber() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRoutingNumber(String routingNumber) {
     this.routingNumber = routingNumber;
+    isSetRoutingNumber = true; // mark as set
   }
 
   /**
@@ -244,6 +270,7 @@ public void setRoutingNumber(String routingNumber) {
    */
   public USLocalAccountIdentification type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -267,6 +294,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public USLocalAccountIdentification includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this USLocalAccountIdentification object is equal to o. */
@@ -312,6 +360,39 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAccountNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_NUMBER, this.accountNumber);
+    }
+    if (isSetAccountType) {
+      addIfNull(nulls, JSON_PROPERTY_ACCOUNT_TYPE, this.accountType);
+    }
+    if (isSetRoutingNumber) {
+      addIfNull(nulls, JSON_PROPERTY_ROUTING_NUMBER, this.routingNumber);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of USLocalAccountIdentification given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/UpdateNetworkTokenRequest.java b/src/main/java/com/adyen/model/balanceplatform/UpdateNetworkTokenRequest.java
index 646fdf789..c26221d79 100644
--- a/src/main/java/com/adyen/model/balanceplatform/UpdateNetworkTokenRequest.java
+++ b/src/main/java/com/adyen/model/balanceplatform/UpdateNetworkTokenRequest.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -73,6 +75,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public UpdateNetworkTokenRequest() {}
 
   /**
@@ -85,6 +96,7 @@ public UpdateNetworkTokenRequest() {}
    */
   public UpdateNetworkTokenRequest status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -112,6 +124,27 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public UpdateNetworkTokenRequest includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this UpdateNetworkTokenRequest object is equal to o. */
@@ -151,6 +184,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of UpdateNetworkTokenRequest given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/UpdatePaymentInstrument.java b/src/main/java/com/adyen/model/balanceplatform/UpdatePaymentInstrument.java
index ef7c6c6d7..ce3a65db2 100644
--- a/src/main/java/com/adyen/model/balanceplatform/UpdatePaymentInstrument.java
+++ b/src/main/java/com/adyen/model/balanceplatform/UpdatePaymentInstrument.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -48,36 +50,69 @@ public class UpdatePaymentInstrument {
   private List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
       additionalBankAccountIdentifications;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetAdditionalBankAccountIdentifications = false;
+
   public static final String JSON_PROPERTY_BALANCE_ACCOUNT_ID = "balanceAccountId";
   private String balanceAccountId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBalanceAccountId = false;
+
   public static final String JSON_PROPERTY_BANK_ACCOUNT = "bankAccount";
   private BankAccountDetails bankAccount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetBankAccount = false;
+
   public static final String JSON_PROPERTY_CARD = "card";
   private Card card;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCard = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_ISSUING_COUNTRY_CODE = "issuingCountryCode";
   private String issuingCountryCode;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetIssuingCountryCode = false;
+
   public static final String JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID = "paymentInstrumentGroupId";
   private String paymentInstrumentGroupId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPaymentInstrumentGroupId = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_REPLACED_BY_ID = "replacedById";
   private String replacedById;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReplacedById = false;
+
   public static final String JSON_PROPERTY_REPLACEMENT_OF_ID = "replacementOfId";
   private String replacementOfId;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReplacementOfId = false;
+
   /**
    * The status of the payment instrument. If a status is not specified when creating a payment
    * instrument, it is set to **active** by default. However, there can be exceptions for cards
@@ -135,9 +170,15 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_STATUS_COMMENT = "statusComment";
   private String statusComment;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusComment = false;
+
   /**
    * The reason for the status of the payment instrument. Possible values: **accountClosure**,
    * **damaged**, **endOfLife**, **expired**, **lost**, **stolen**, **suspectedFraud**,
@@ -201,6 +242,9 @@ public static StatusReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS_REASON = "statusReason";
   private StatusReasonEnum statusReason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatusReason = false;
+
   /** The type of payment instrument. Possible values: **card**, **bankAccount**. */
   public enum TypeEnum {
     BANKACCOUNT(String.valueOf("bankAccount")),
@@ -245,6 +289,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public UpdatePaymentInstrument() {}
 
   /**
@@ -262,6 +315,7 @@ public UpdatePaymentInstrument additionalBankAccountIdentifications(
       List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
           additionalBankAccountIdentifications) {
     this.additionalBankAccountIdentifications = additionalBankAccountIdentifications;
+    isSetAdditionalBankAccountIdentifications = true; // mark as set
     return this;
   }
 
@@ -308,6 +362,7 @@ public void setAdditionalBankAccountIdentifications(
       List<PaymentInstrumentAdditionalBankAccountIdentificationsInner>
           additionalBankAccountIdentifications) {
     this.additionalBankAccountIdentifications = additionalBankAccountIdentifications;
+    isSetAdditionalBankAccountIdentifications = true; // mark as set
   }
 
   /**
@@ -322,6 +377,7 @@ public void setAdditionalBankAccountIdentifications(
    */
   public UpdatePaymentInstrument balanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
     return this;
   }
 
@@ -353,6 +409,7 @@ public String getBalanceAccountId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBalanceAccountId(String balanceAccountId) {
     this.balanceAccountId = balanceAccountId;
+    isSetBalanceAccountId = true; // mark as set
   }
 
   /**
@@ -363,6 +420,7 @@ public void setBalanceAccountId(String balanceAccountId) {
    */
   public UpdatePaymentInstrument bankAccount(BankAccountDetails bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
     return this;
   }
 
@@ -386,6 +444,7 @@ public BankAccountDetails getBankAccount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setBankAccount(BankAccountDetails bankAccount) {
     this.bankAccount = bankAccount;
+    isSetBankAccount = true; // mark as set
   }
 
   /**
@@ -396,6 +455,7 @@ public void setBankAccount(BankAccountDetails bankAccount) {
    */
   public UpdatePaymentInstrument card(Card card) {
     this.card = card;
+    isSetCard = true; // mark as set
     return this;
   }
 
@@ -419,6 +479,7 @@ public Card getCard() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCard(Card card) {
     this.card = card;
+    isSetCard = true; // mark as set
   }
 
   /**
@@ -429,6 +490,7 @@ public void setCard(Card card) {
    */
   public UpdatePaymentInstrument description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -452,6 +514,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -462,6 +525,7 @@ public void setDescription(String description) {
    */
   public UpdatePaymentInstrument id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -485,6 +549,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -498,6 +563,7 @@ public void setId(String id) {
    */
   public UpdatePaymentInstrument issuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
     return this;
   }
 
@@ -527,6 +593,7 @@ public String getIssuingCountryCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setIssuingCountryCode(String issuingCountryCode) {
     this.issuingCountryCode = issuingCountryCode;
+    isSetIssuingCountryCode = true; // mark as set
   }
 
   /**
@@ -541,6 +608,7 @@ public void setIssuingCountryCode(String issuingCountryCode) {
    */
   public UpdatePaymentInstrument paymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
     return this;
   }
 
@@ -572,6 +640,7 @@ public String getPaymentInstrumentGroupId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
     this.paymentInstrumentGroupId = paymentInstrumentGroupId;
+    isSetPaymentInstrumentGroupId = true; // mark as set
   }
 
   /**
@@ -582,6 +651,7 @@ public void setPaymentInstrumentGroupId(String paymentInstrumentGroupId) {
    */
   public UpdatePaymentInstrument reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -605,6 +675,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -616,6 +687,7 @@ public void setReference(String reference) {
    */
   public UpdatePaymentInstrument replacedById(String replacedById) {
     this.replacedById = replacedById;
+    isSetReplacedById = true; // mark as set
     return this;
   }
 
@@ -641,6 +713,7 @@ public String getReplacedById() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReplacedById(String replacedById) {
     this.replacedById = replacedById;
+    isSetReplacedById = true; // mark as set
   }
 
   /**
@@ -652,6 +725,7 @@ public void setReplacedById(String replacedById) {
    */
   public UpdatePaymentInstrument replacementOfId(String replacementOfId) {
     this.replacementOfId = replacementOfId;
+    isSetReplacementOfId = true; // mark as set
     return this;
   }
 
@@ -677,6 +751,7 @@ public String getReplacementOfId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReplacementOfId(String replacementOfId) {
     this.replacementOfId = replacementOfId;
+    isSetReplacementOfId = true; // mark as set
   }
 
   /**
@@ -702,6 +777,7 @@ public void setReplacementOfId(String replacementOfId) {
    */
   public UpdatePaymentInstrument status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -755,6 +831,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -767,6 +844,7 @@ public void setStatus(StatusEnum status) {
    */
   public UpdatePaymentInstrument statusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
     return this;
   }
 
@@ -794,6 +872,7 @@ public String getStatusComment() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusComment(String statusComment) {
     this.statusComment = statusComment;
+    isSetStatusComment = true; // mark as set
   }
 
   /**
@@ -810,6 +889,7 @@ public void setStatusComment(String statusComment) {
    */
   public UpdatePaymentInstrument statusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
     return this;
   }
 
@@ -845,6 +925,7 @@ public StatusReasonEnum getStatusReason() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatusReason(StatusReasonEnum statusReason) {
     this.statusReason = statusReason;
+    isSetStatusReason = true; // mark as set
   }
 
   /**
@@ -855,6 +936,7 @@ public void setStatusReason(StatusReasonEnum statusReason) {
    */
   public UpdatePaymentInstrument type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -878,6 +960,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public UpdatePaymentInstrument includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this UpdatePaymentInstrument object is equal to o. */
@@ -967,6 +1070,75 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetAdditionalBankAccountIdentifications) {
+      addIfNull(
+          nulls,
+          JSON_PROPERTY_ADDITIONAL_BANK_ACCOUNT_IDENTIFICATIONS,
+          this.additionalBankAccountIdentifications);
+    }
+    if (isSetBalanceAccountId) {
+      addIfNull(nulls, JSON_PROPERTY_BALANCE_ACCOUNT_ID, this.balanceAccountId);
+    }
+    if (isSetBankAccount) {
+      addIfNull(nulls, JSON_PROPERTY_BANK_ACCOUNT, this.bankAccount);
+    }
+    if (isSetCard) {
+      addIfNull(nulls, JSON_PROPERTY_CARD, this.card);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetIssuingCountryCode) {
+      addIfNull(nulls, JSON_PROPERTY_ISSUING_COUNTRY_CODE, this.issuingCountryCode);
+    }
+    if (isSetPaymentInstrumentGroupId) {
+      addIfNull(nulls, JSON_PROPERTY_PAYMENT_INSTRUMENT_GROUP_ID, this.paymentInstrumentGroupId);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetReplacedById) {
+      addIfNull(nulls, JSON_PROPERTY_REPLACED_BY_ID, this.replacedById);
+    }
+    if (isSetReplacementOfId) {
+      addIfNull(nulls, JSON_PROPERTY_REPLACEMENT_OF_ID, this.replacementOfId);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetStatusComment) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_COMMENT, this.statusComment);
+    }
+    if (isSetStatusReason) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS_REASON, this.statusReason);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of UpdatePaymentInstrument given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/UpdateSweepConfigurationV2.java b/src/main/java/com/adyen/model/balanceplatform/UpdateSweepConfigurationV2.java
index ff6417562..d1a8dad68 100644
--- a/src/main/java/com/adyen/model/balanceplatform/UpdateSweepConfigurationV2.java
+++ b/src/main/java/com/adyen/model/balanceplatform/UpdateSweepConfigurationV2.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -96,18 +98,33 @@ public static CategoryEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CATEGORY = "category";
   private CategoryEnum category;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCategory = false;
+
   public static final String JSON_PROPERTY_COUNTERPARTY = "counterparty";
   private SweepCounterparty counterparty;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCounterparty = false;
+
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_DESCRIPTION = "description";
   private String description;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetDescription = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   /** Gets or Sets priorities */
   public enum PrioritiesEnum {
     CROSSBORDER(String.valueOf("crossBorder")),
@@ -160,6 +177,9 @@ public static PrioritiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_PRIORITIES = "priorities";
   private List<PrioritiesEnum> priorities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetPriorities = false;
+
   /** The reason for disabling the sweep. */
   public enum ReasonEnum {
     ACCOUNTHIERARCHYNOTACTIVE(String.valueOf("accountHierarchyNotActive")),
@@ -209,6 +229,8 @@ public enum ReasonEnum {
 
     SCAFAILED(String.valueOf("scaFailed")),
 
+    SCHEMEADVICE(String.valueOf("schemeAdvice")),
+
     TRANSFERINSTRUMENTDOESNOTEXIST(String.valueOf("transferInstrumentDoesNotExist")),
 
     UNKNOWN(String.valueOf("unknown"));
@@ -251,18 +273,33 @@ public static ReasonEnum fromValue(String value) {
   public static final String JSON_PROPERTY_REASON = "reason";
   private ReasonEnum reason;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReason = false;
+
   public static final String JSON_PROPERTY_REASON_DETAIL = "reasonDetail";
   private String reasonDetail;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReasonDetail = false;
+
   public static final String JSON_PROPERTY_REFERENCE = "reference";
   private String reference;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReference = false;
+
   public static final String JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY = "referenceForBeneficiary";
   private String referenceForBeneficiary;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetReferenceForBeneficiary = false;
+
   public static final String JSON_PROPERTY_SCHEDULE = "schedule";
   private SweepSchedule schedule;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSchedule = false;
+
   /**
    * The status of the sweep. If not provided, by default, this is set to **active**. Possible
    * values: * **active**: the sweep is enabled and funds will be pulled in or pushed out based on
@@ -311,15 +348,27 @@ public static StatusEnum fromValue(String value) {
   public static final String JSON_PROPERTY_STATUS = "status";
   private StatusEnum status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_SWEEP_AMOUNT = "sweepAmount";
   private Amount sweepAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSweepAmount = false;
+
   public static final String JSON_PROPERTY_TARGET_AMOUNT = "targetAmount";
   private Amount targetAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTargetAmount = false;
+
   public static final String JSON_PROPERTY_TRIGGER_AMOUNT = "triggerAmount";
   private Amount triggerAmount;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTriggerAmount = false;
+
   /**
    * The direction of sweep, whether pushing out or pulling in funds to the balance account. If not
    * provided, by default, this is set to **push**. Possible values: * **push**: _push out funds_ to
@@ -369,6 +418,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public UpdateSweepConfigurationV2() {}
 
   @JsonCreator
@@ -400,6 +458,7 @@ public UpdateSweepConfigurationV2(
    */
   public UpdateSweepConfigurationV2 category(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
     return this;
   }
 
@@ -443,6 +502,7 @@ public CategoryEnum getCategory() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCategory(CategoryEnum category) {
     this.category = category;
+    isSetCategory = true; // mark as set
   }
 
   /**
@@ -453,6 +513,7 @@ public void setCategory(CategoryEnum category) {
    */
   public UpdateSweepConfigurationV2 counterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
     return this;
   }
 
@@ -476,6 +537,7 @@ public SweepCounterparty getCounterparty() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCounterparty(SweepCounterparty counterparty) {
     this.counterparty = counterparty;
+    isSetCounterparty = true; // mark as set
   }
 
   /**
@@ -492,6 +554,7 @@ public void setCounterparty(SweepCounterparty counterparty) {
    */
   public UpdateSweepConfigurationV2 currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -527,6 +590,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -541,6 +605,7 @@ public void setCurrency(String currency) {
    */
   public UpdateSweepConfigurationV2 description(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
     return this;
   }
 
@@ -572,6 +637,7 @@ public String getDescription() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setDescription(String description) {
     this.description = description;
+    isSetDescription = true; // mark as set
   }
 
   /**
@@ -594,14 +660,14 @@ public String getId() {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -617,14 +683,14 @@ public String getId() {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -634,6 +700,7 @@ public String getId() {
    */
   public UpdateSweepConfigurationV2 priorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
     return this;
   }
 
@@ -654,14 +721,14 @@ public UpdateSweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesIte
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -677,14 +744,14 @@ public UpdateSweepConfigurationV2 addPrioritiesItem(PrioritiesEnum prioritiesIte
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -706,14 +773,14 @@ public List<PrioritiesEnum> getPriorities() {
    * priorities is valid (i.e., supported by Adyen and activated for your platform). For example, if
    * you provide &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    * supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   * Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster way to
+   * Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster way to
    * transfer funds, but the fees are higher. Recommended for high-priority, low-value transactions.
-   * * **wire**: the fastest way to transfer funds, but this has the highest fees. Recommended for
-   * high-priority, high-value transactions. * **instant**: for instant funds transfers within the
+   * * **wire**: The fastest way to transfer funds, but this has the highest fees. Recommended for
+   * high-priority, high-value transactions. * **instant**: For instant funds transfers within the
    * United States and in [SEPA
    * locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   * **crossBorder**: for high-value transfers to a recipient in a different country. *
-   * **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   * **crossBorder**: For high-value transfers to a recipient in a different country. *
+   * **internal**: For transfers to an Adyen-issued business bank account (by bank account
    * number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional priorities
    * setup for
    * [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -729,14 +796,14 @@ public List<PrioritiesEnum> getPriorities() {
    *     activated for your platform). For example, if you provide
    *     &#x60;[\&quot;wire\&quot;,\&quot;regular\&quot;]&#x60;, and &#x60;wire&#x60; is not
    *     supported but &#x60;regular&#x60; is, the request will still be accepted and processed.
-   *     Possible values: * **regular**: for normal, low-value transactions. * **fast**: a faster
+   *     Possible values: * **regular**: For normal, low-value transactions. * **fast**: A faster
    *     way to transfer funds, but the fees are higher. Recommended for high-priority, low-value
-   *     transactions. * **wire**: the fastest way to transfer funds, but this has the highest fees.
-   *     Recommended for high-priority, high-value transactions. * **instant**: for instant funds
+   *     transactions. * **wire**: The fastest way to transfer funds, but this has the highest fees.
+   *     Recommended for high-priority, high-value transactions. * **instant**: For instant funds
    *     transfers within the United States and in [SEPA
    *     locations](https://www.ecb.europa.eu/paym/integration/retail/sepa/html/index.en.html). *
-   *     **crossBorder**: for high-value transfers to a recipient in a different country. *
-   *     **internal**: for transfers to an Adyen-issued business bank account (by bank account
+   *     **crossBorder**: For high-value transfers to a recipient in a different country. *
+   *     **internal**: For transfers to an Adyen-issued business bank account (by bank account
    *     number/IBAN). Set &#x60;category&#x60; to **bank**. For more details, see optional
    *     priorities setup for
    *     [marketplaces](https://docs.adyen.com/marketplaces/payout-to-users/scheduled-payouts#optional-priorities-setup)
@@ -747,6 +814,7 @@ public List<PrioritiesEnum> getPriorities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setPriorities(List<PrioritiesEnum> priorities) {
     this.priorities = priorities;
+    isSetPriorities = true; // mark as set
   }
 
   /**
@@ -779,6 +847,7 @@ public String getReasonDetail() {
    */
   public UpdateSweepConfigurationV2 reference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
     return this;
   }
 
@@ -802,6 +871,7 @@ public String getReference() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReference(String reference) {
     this.reference = reference;
+    isSetReference = true; // mark as set
   }
 
   /**
@@ -814,6 +884,7 @@ public void setReference(String reference) {
    */
   public UpdateSweepConfigurationV2 referenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
     return this;
   }
 
@@ -841,6 +912,7 @@ public String getReferenceForBeneficiary() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setReferenceForBeneficiary(String referenceForBeneficiary) {
     this.referenceForBeneficiary = referenceForBeneficiary;
+    isSetReferenceForBeneficiary = true; // mark as set
   }
 
   /**
@@ -851,6 +923,7 @@ public void setReferenceForBeneficiary(String referenceForBeneficiary) {
    */
   public UpdateSweepConfigurationV2 schedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
     return this;
   }
 
@@ -874,6 +947,7 @@ public SweepSchedule getSchedule() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSchedule(SweepSchedule schedule) {
     this.schedule = schedule;
+    isSetSchedule = true; // mark as set
   }
 
   /**
@@ -889,6 +963,7 @@ public void setSchedule(SweepSchedule schedule) {
    */
   public UpdateSweepConfigurationV2 status(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -922,6 +997,7 @@ public StatusEnum getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(StatusEnum status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -932,6 +1008,7 @@ public void setStatus(StatusEnum status) {
    */
   public UpdateSweepConfigurationV2 sweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
     return this;
   }
 
@@ -955,6 +1032,7 @@ public Amount getSweepAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSweepAmount(Amount sweepAmount) {
     this.sweepAmount = sweepAmount;
+    isSetSweepAmount = true; // mark as set
   }
 
   /**
@@ -965,6 +1043,7 @@ public void setSweepAmount(Amount sweepAmount) {
    */
   public UpdateSweepConfigurationV2 targetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
     return this;
   }
 
@@ -988,6 +1067,7 @@ public Amount getTargetAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTargetAmount(Amount targetAmount) {
     this.targetAmount = targetAmount;
+    isSetTargetAmount = true; // mark as set
   }
 
   /**
@@ -998,6 +1078,7 @@ public void setTargetAmount(Amount targetAmount) {
    */
   public UpdateSweepConfigurationV2 triggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
     return this;
   }
 
@@ -1021,6 +1102,7 @@ public Amount getTriggerAmount() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTriggerAmount(Amount triggerAmount) {
     this.triggerAmount = triggerAmount;
+    isSetTriggerAmount = true; // mark as set
   }
 
   /**
@@ -1037,6 +1119,7 @@ public void setTriggerAmount(Amount triggerAmount) {
    */
   public UpdateSweepConfigurationV2 type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -1072,6 +1155,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public UpdateSweepConfigurationV2 includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this UpdateSweepConfigurationV2 object is equal to o. */
@@ -1160,6 +1264,75 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCategory) {
+      addIfNull(nulls, JSON_PROPERTY_CATEGORY, this.category);
+    }
+    if (isSetCounterparty) {
+      addIfNull(nulls, JSON_PROPERTY_COUNTERPARTY, this.counterparty);
+    }
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetDescription) {
+      addIfNull(nulls, JSON_PROPERTY_DESCRIPTION, this.description);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetPriorities) {
+      addIfNull(nulls, JSON_PROPERTY_PRIORITIES, this.priorities);
+    }
+    if (isSetReason) {
+      addIfNull(nulls, JSON_PROPERTY_REASON, this.reason);
+    }
+    if (isSetReasonDetail) {
+      addIfNull(nulls, JSON_PROPERTY_REASON_DETAIL, this.reasonDetail);
+    }
+    if (isSetReference) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE, this.reference);
+    }
+    if (isSetReferenceForBeneficiary) {
+      addIfNull(nulls, JSON_PROPERTY_REFERENCE_FOR_BENEFICIARY, this.referenceForBeneficiary);
+    }
+    if (isSetSchedule) {
+      addIfNull(nulls, JSON_PROPERTY_SCHEDULE, this.schedule);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetSweepAmount) {
+      addIfNull(nulls, JSON_PROPERTY_SWEEP_AMOUNT, this.sweepAmount);
+    }
+    if (isSetTargetAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET_AMOUNT, this.targetAmount);
+    }
+    if (isSetTriggerAmount) {
+      addIfNull(nulls, JSON_PROPERTY_TRIGGER_AMOUNT, this.triggerAmount);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of UpdateSweepConfigurationV2 given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/VerificationDeadline.java b/src/main/java/com/adyen/model/balanceplatform/VerificationDeadline.java
index 1b1306286..9efc39e74 100644
--- a/src/main/java/com/adyen/model/balanceplatform/VerificationDeadline.java
+++ b/src/main/java/com/adyen/model/balanceplatform/VerificationDeadline.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -192,12 +194,27 @@ public static CapabilitiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private List<CapabilitiesEnum> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_ENTITY_IDS = "entityIds";
   private List<String> entityIds;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetEntityIds = false;
+
   public static final String JSON_PROPERTY_EXPIRES_AT = "expiresAt";
   private OffsetDateTime expiresAt;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetExpiresAt = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public VerificationDeadline() {}
 
   @JsonCreator
@@ -244,6 +261,26 @@ public OffsetDateTime getExpiresAt() {
     return expiresAt;
   }
 
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public VerificationDeadline includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+  }
+
   /** Return true if this VerificationDeadline object is equal to o. */
   @Override
   public boolean equals(Object o) {
@@ -285,6 +322,36 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetEntityIds) {
+      addIfNull(nulls, JSON_PROPERTY_ENTITY_IDS, this.entityIds);
+    }
+    if (isSetExpiresAt) {
+      addIfNull(nulls, JSON_PROPERTY_EXPIRES_AT, this.expiresAt);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of VerificationDeadline given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/VerificationError.java b/src/main/java/com/adyen/model/balanceplatform/VerificationError.java
index 364903afa..3a3e5f3c2 100644
--- a/src/main/java/com/adyen/model/balanceplatform/VerificationError.java
+++ b/src/main/java/com/adyen/model/balanceplatform/VerificationError.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -195,18 +197,33 @@ public static CapabilitiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private List<CapabilitiesEnum> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_CODE = "code";
   private String code;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCode = false;
+
   public static final String JSON_PROPERTY_MESSAGE = "message";
   private String message;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMessage = false;
+
   public static final String JSON_PROPERTY_REMEDIATING_ACTIONS = "remediatingActions";
   private List<RemediatingAction> remediatingActions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRemediatingActions = false;
+
   public static final String JSON_PROPERTY_SUB_ERRORS = "subErrors";
   private List<VerificationErrorRecursive> subErrors;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetSubErrors = false;
+
   /**
    * The type of error. Possible values: * **invalidInput** * **dataMissing** * **pendingStatus** *
    * **dataReview**
@@ -258,6 +275,15 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public VerificationError() {}
 
   /**
@@ -268,6 +294,7 @@ public VerificationError() {}
    */
   public VerificationError capabilities(List<CapabilitiesEnum> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
     return this;
   }
 
@@ -299,6 +326,7 @@ public List<CapabilitiesEnum> getCapabilities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCapabilities(List<CapabilitiesEnum> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
   }
 
   /**
@@ -309,6 +337,7 @@ public void setCapabilities(List<CapabilitiesEnum> capabilities) {
    */
   public VerificationError code(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
     return this;
   }
 
@@ -332,6 +361,7 @@ public String getCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCode(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
   }
 
   /**
@@ -342,6 +372,7 @@ public void setCode(String code) {
    */
   public VerificationError message(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
     return this;
   }
 
@@ -365,6 +396,7 @@ public String getMessage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMessage(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
   }
 
   /**
@@ -376,6 +408,7 @@ public void setMessage(String message) {
    */
   public VerificationError remediatingActions(List<RemediatingAction> remediatingActions) {
     this.remediatingActions = remediatingActions;
+    isSetRemediatingActions = true; // mark as set
     return this;
   }
 
@@ -409,6 +442,7 @@ public List<RemediatingAction> getRemediatingActions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRemediatingActions(List<RemediatingAction> remediatingActions) {
     this.remediatingActions = remediatingActions;
+    isSetRemediatingActions = true; // mark as set
   }
 
   /**
@@ -419,6 +453,7 @@ public void setRemediatingActions(List<RemediatingAction> remediatingActions) {
    */
   public VerificationError subErrors(List<VerificationErrorRecursive> subErrors) {
     this.subErrors = subErrors;
+    isSetSubErrors = true; // mark as set
     return this;
   }
 
@@ -450,6 +485,7 @@ public List<VerificationErrorRecursive> getSubErrors() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setSubErrors(List<VerificationErrorRecursive> subErrors) {
     this.subErrors = subErrors;
+    isSetSubErrors = true; // mark as set
   }
 
   /**
@@ -462,6 +498,7 @@ public void setSubErrors(List<VerificationErrorRecursive> subErrors) {
    */
   public VerificationError type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -489,6 +526,27 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public VerificationError includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this VerificationError object is equal to o. */
@@ -538,6 +596,45 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetCode) {
+      addIfNull(nulls, JSON_PROPERTY_CODE, this.code);
+    }
+    if (isSetMessage) {
+      addIfNull(nulls, JSON_PROPERTY_MESSAGE, this.message);
+    }
+    if (isSetRemediatingActions) {
+      addIfNull(nulls, JSON_PROPERTY_REMEDIATING_ACTIONS, this.remediatingActions);
+    }
+    if (isSetSubErrors) {
+      addIfNull(nulls, JSON_PROPERTY_SUB_ERRORS, this.subErrors);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of VerificationError given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/VerificationErrorRecursive.java b/src/main/java/com/adyen/model/balanceplatform/VerificationErrorRecursive.java
index c5f0f6f94..2cd41dc20 100644
--- a/src/main/java/com/adyen/model/balanceplatform/VerificationErrorRecursive.java
+++ b/src/main/java/com/adyen/model/balanceplatform/VerificationErrorRecursive.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -196,12 +198,21 @@ public static CapabilitiesEnum fromValue(String value) {
   public static final String JSON_PROPERTY_CAPABILITIES = "capabilities";
   private List<CapabilitiesEnum> capabilities;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCapabilities = false;
+
   public static final String JSON_PROPERTY_CODE = "code";
   private String code;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCode = false;
+
   public static final String JSON_PROPERTY_MESSAGE = "message";
   private String message;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetMessage = false;
+
   /**
    * The type of error. Possible values: * **invalidInput** * **dataMissing** * **pendingStatus** *
    * **dataReview**
@@ -253,9 +264,21 @@ public static TypeEnum fromValue(String value) {
   public static final String JSON_PROPERTY_TYPE = "type";
   private TypeEnum type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
   public static final String JSON_PROPERTY_REMEDIATING_ACTIONS = "remediatingActions";
   private List<RemediatingAction> remediatingActions;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetRemediatingActions = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public VerificationErrorRecursive() {}
 
   /**
@@ -266,6 +289,7 @@ public VerificationErrorRecursive() {}
    */
   public VerificationErrorRecursive capabilities(List<CapabilitiesEnum> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
     return this;
   }
 
@@ -297,6 +321,7 @@ public List<CapabilitiesEnum> getCapabilities() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCapabilities(List<CapabilitiesEnum> capabilities) {
     this.capabilities = capabilities;
+    isSetCapabilities = true; // mark as set
   }
 
   /**
@@ -307,6 +332,7 @@ public void setCapabilities(List<CapabilitiesEnum> capabilities) {
    */
   public VerificationErrorRecursive code(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
     return this;
   }
 
@@ -330,6 +356,7 @@ public String getCode() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCode(String code) {
     this.code = code;
+    isSetCode = true; // mark as set
   }
 
   /**
@@ -340,6 +367,7 @@ public void setCode(String code) {
    */
   public VerificationErrorRecursive message(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
     return this;
   }
 
@@ -363,6 +391,7 @@ public String getMessage() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setMessage(String message) {
     this.message = message;
+    isSetMessage = true; // mark as set
   }
 
   /**
@@ -375,6 +404,7 @@ public void setMessage(String message) {
    */
   public VerificationErrorRecursive type(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -402,6 +432,7 @@ public TypeEnum getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(TypeEnum type) {
     this.type = type;
+    isSetType = true; // mark as set
   }
 
   /**
@@ -413,6 +444,7 @@ public void setType(TypeEnum type) {
    */
   public VerificationErrorRecursive remediatingActions(List<RemediatingAction> remediatingActions) {
     this.remediatingActions = remediatingActions;
+    isSetRemediatingActions = true; // mark as set
     return this;
   }
 
@@ -447,6 +479,27 @@ public List<RemediatingAction> getRemediatingActions() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setRemediatingActions(List<RemediatingAction> remediatingActions) {
     this.remediatingActions = remediatingActions;
+    isSetRemediatingActions = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public VerificationErrorRecursive includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this VerificationError-recursive object is equal to o. */
@@ -494,6 +547,42 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCapabilities) {
+      addIfNull(nulls, JSON_PROPERTY_CAPABILITIES, this.capabilities);
+    }
+    if (isSetCode) {
+      addIfNull(nulls, JSON_PROPERTY_CODE, this.code);
+    }
+    if (isSetMessage) {
+      addIfNull(nulls, JSON_PROPERTY_MESSAGE, this.message);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+    if (isSetRemediatingActions) {
+      addIfNull(nulls, JSON_PROPERTY_REMEDIATING_ACTIONS, this.remediatingActions);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of VerificationErrorRecursive given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/WalletProviderAccountScoreRestriction.java b/src/main/java/com/adyen/model/balanceplatform/WalletProviderAccountScoreRestriction.java
index ceef30825..c37edf90e 100644
--- a/src/main/java/com/adyen/model/balanceplatform/WalletProviderAccountScoreRestriction.java
+++ b/src/main/java/com/adyen/model/balanceplatform/WalletProviderAccountScoreRestriction.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class WalletProviderAccountScoreRestriction {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Integer value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public WalletProviderAccountScoreRestriction() {}
 
   /**
@@ -40,6 +54,7 @@ public WalletProviderAccountScoreRestriction() {}
    */
   public WalletProviderAccountScoreRestriction operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -63,6 +78,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -74,6 +90,7 @@ public void setOperation(String operation) {
    */
   public WalletProviderAccountScoreRestriction value(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -97,6 +114,27 @@ public Integer getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public WalletProviderAccountScoreRestriction includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this WalletProviderAccountScoreRestriction object is equal to o. */
@@ -139,6 +177,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of WalletProviderAccountScoreRestriction given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceScore.java b/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceScore.java
index 2d91ed64f..0dff00370 100644
--- a/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceScore.java
+++ b/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceScore.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -26,9 +28,21 @@ public class WalletProviderDeviceScore {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   public static final String JSON_PROPERTY_VALUE = "value";
   private Integer value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public WalletProviderDeviceScore() {}
 
   /**
@@ -39,6 +53,7 @@ public WalletProviderDeviceScore() {}
    */
   public WalletProviderDeviceScore operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -62,6 +77,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -72,6 +88,7 @@ public void setOperation(String operation) {
    */
   public WalletProviderDeviceScore value(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -95,6 +112,27 @@ public Integer getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(Integer value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public WalletProviderDeviceScore includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this WalletProviderDeviceScore object is equal to o. */
@@ -136,6 +174,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of WalletProviderDeviceScore given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceType.java b/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceType.java
index 8a06909da..f47ad47a6 100644
--- a/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceType.java
+++ b/src/main/java/com/adyen/model/balanceplatform/WalletProviderDeviceType.java
@@ -11,7 +11,9 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -32,6 +34,9 @@ public class WalletProviderDeviceType {
   public static final String JSON_PROPERTY_OPERATION = "operation";
   private String operation;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetOperation = false;
+
   /** Gets or Sets value */
   public enum ValueEnum {
     CARD(String.valueOf("CARD")),
@@ -88,6 +93,15 @@ public static ValueEnum fromValue(String value) {
   public static final String JSON_PROPERTY_VALUE = "value";
   private List<ValueEnum> value;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetValue = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public WalletProviderDeviceType() {}
 
   /**
@@ -98,6 +112,7 @@ public WalletProviderDeviceType() {}
    */
   public WalletProviderDeviceType operation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
     return this;
   }
 
@@ -121,6 +136,7 @@ public String getOperation() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setOperation(String operation) {
     this.operation = operation;
+    isSetOperation = true; // mark as set
   }
 
   /**
@@ -131,6 +147,7 @@ public void setOperation(String operation) {
    */
   public WalletProviderDeviceType value(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
     return this;
   }
 
@@ -162,6 +179,27 @@ public List<ValueEnum> getValue() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setValue(List<ValueEnum> value) {
     this.value = value;
+    isSetValue = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public WalletProviderDeviceType includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this WalletProviderDeviceType object is equal to o. */
@@ -203,6 +241,33 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetOperation) {
+      addIfNull(nulls, JSON_PROPERTY_OPERATION, this.operation);
+    }
+    if (isSetValue) {
+      addIfNull(nulls, JSON_PROPERTY_VALUE, this.value);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of WalletProviderDeviceType given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/WebhookSetting.java b/src/main/java/com/adyen/model/balanceplatform/WebhookSetting.java
index 973e2fec5..ddf92027b 100644
--- a/src/main/java/com/adyen/model/balanceplatform/WebhookSetting.java
+++ b/src/main/java/com/adyen/model/balanceplatform/WebhookSetting.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
@@ -46,18 +48,39 @@ public class WebhookSetting {
   public static final String JSON_PROPERTY_CURRENCY = "currency";
   private String currency;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetCurrency = false;
+
   public static final String JSON_PROPERTY_ID = "id";
   private String id;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetId = false;
+
   public static final String JSON_PROPERTY_STATUS = "status";
   private String status;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetStatus = false;
+
   public static final String JSON_PROPERTY_TARGET = "target";
   private Target target;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetTarget = false;
+
   public static final String JSON_PROPERTY_TYPE = "type";
   private SettingType type;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetType = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public WebhookSetting() {}
 
   /**
@@ -70,6 +93,7 @@ public WebhookSetting() {}
    */
   public WebhookSetting currency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
     return this;
   }
 
@@ -97,6 +121,7 @@ public String getCurrency() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setCurrency(String currency) {
     this.currency = currency;
+    isSetCurrency = true; // mark as set
   }
 
   /**
@@ -107,6 +132,7 @@ public void setCurrency(String currency) {
    */
   public WebhookSetting id(String id) {
     this.id = id;
+    isSetId = true; // mark as set
     return this;
   }
 
@@ -130,6 +156,7 @@ public String getId() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setId(String id) {
     this.id = id;
+    isSetId = true; // mark as set
   }
 
   /**
@@ -140,6 +167,7 @@ public void setId(String id) {
    */
   public WebhookSetting status(String status) {
     this.status = status;
+    isSetStatus = true; // mark as set
     return this;
   }
 
@@ -163,6 +191,7 @@ public String getStatus() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setStatus(String status) {
     this.status = status;
+    isSetStatus = true; // mark as set
   }
 
   /**
@@ -173,6 +202,7 @@ public void setStatus(String status) {
    */
   public WebhookSetting target(Target target) {
     this.target = target;
+    isSetTarget = true; // mark as set
     return this;
   }
 
@@ -196,6 +226,7 @@ public Target getTarget() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setTarget(Target target) {
     this.target = target;
+    isSetTarget = true; // mark as set
   }
 
   /**
@@ -206,6 +237,7 @@ public void setTarget(Target target) {
    */
   public WebhookSetting type(SettingType type) {
     this.type = type;
+    isSetType = true; // mark as set
     return this;
   }
 
@@ -229,6 +261,27 @@ public SettingType getType() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setType(SettingType type) {
     this.type = type;
+    isSetType = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public WebhookSetting includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this WebhookSetting object is equal to o. */
@@ -284,6 +337,42 @@ private String toIndentedString(Object o) {
     JSON.registerDiscriminator(WebhookSetting.class, "type", mappings);
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetCurrency) {
+      addIfNull(nulls, JSON_PROPERTY_CURRENCY, this.currency);
+    }
+    if (isSetId) {
+      addIfNull(nulls, JSON_PROPERTY_ID, this.id);
+    }
+    if (isSetStatus) {
+      addIfNull(nulls, JSON_PROPERTY_STATUS, this.status);
+    }
+    if (isSetTarget) {
+      addIfNull(nulls, JSON_PROPERTY_TARGET, this.target);
+    }
+    if (isSetType) {
+      addIfNull(nulls, JSON_PROPERTY_TYPE, this.type);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of WebhookSetting given an JSON string
    *
diff --git a/src/main/java/com/adyen/model/balanceplatform/WebhookSettings.java b/src/main/java/com/adyen/model/balanceplatform/WebhookSettings.java
index b28a145a0..bb863f7b6 100644
--- a/src/main/java/com/adyen/model/balanceplatform/WebhookSettings.java
+++ b/src/main/java/com/adyen/model/balanceplatform/WebhookSettings.java
@@ -11,6 +11,8 @@
 
 package com.adyen.model.balanceplatform;
 
+import com.fasterxml.jackson.annotation.JsonAnyGetter;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@@ -25,6 +27,15 @@ public class WebhookSettings {
   public static final String JSON_PROPERTY_WEBHOOK_SETTINGS = "webhookSettings";
   private List<WebhookSetting> webhookSettings;
 
+  /** Mark when the attribute has been explicitly set. */
+  private boolean isSetWebhookSettings = false;
+
+  /**
+   * Sets whether attributes with null values should be explicitly included in the JSON payload.
+   * Default is false.
+   */
+  @JsonIgnore private boolean includeNullValues = false;
+
   public WebhookSettings() {}
 
   /**
@@ -35,6 +46,7 @@ public WebhookSettings() {}
    */
   public WebhookSettings webhookSettings(List<WebhookSetting> webhookSettings) {
     this.webhookSettings = webhookSettings;
+    isSetWebhookSettings = true; // mark as set
     return this;
   }
 
@@ -66,6 +78,27 @@ public List<WebhookSetting> getWebhookSettings() {
   @JsonInclude(value = JsonInclude.Include.USE_DEFAULTS)
   public void setWebhookSettings(List<WebhookSetting> webhookSettings) {
     this.webhookSettings = webhookSettings;
+    isSetWebhookSettings = true; // mark as set
+  }
+
+  /**
+   * Configures whether null values are explicitly serialized in the JSON payload. Default is false.
+   */
+  public WebhookSettings includeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
+    return this;
+  }
+
+  /** Returns whether null values are explicitly serialized in the JSON payload. */
+  public boolean isIncludeNullValues() {
+    return includeNullValues;
+  }
+
+  /**
+   * Sets whether null values should be explicitly serialized in the JSON payload. Default is false.
+   */
+  public void setIncludeNullValues(boolean includeNullValues) {
+    this.includeNullValues = includeNullValues;
   }
 
   /** Return true if this WebhookSettings object is equal to o. */
@@ -105,6 +138,30 @@ private String toIndentedString(Object o) {
     return o.toString().replace("\n", "\n    ");
   }
 
+  /** Returns a map of properties to be merged into the JSON payload as explicit null values. */
+  @JsonInclude(JsonInclude.Include.ALWAYS)
+  @JsonAnyGetter
+  public Map<String, Object> getExplicitNulls() {
+    if (!this.includeNullValues) {
+      return Collections.emptyMap();
+    }
+
+    Map<String, Object> nulls = new HashMap<>();
+
+    if (isSetWebhookSettings) {
+      addIfNull(nulls, JSON_PROPERTY_WEBHOOK_SETTINGS, this.webhookSettings);
+    }
+
+    return nulls;
+  }
+
+  // add to map when value is null
+  private void addIfNull(Map<String, Object> map, String key, Object value) {
+    if (value == null) {
+      map.put(key, null);
+    }
+  }
+
   /**
    * Create an instance of WebhookSettings given an JSON string
    *
diff --git a/src/test/java/com/adyen/serializer/ModelTest.java b/src/test/java/com/adyen/serializer/ModelTest.java
index abf956150..64c703baf 100644
--- a/src/test/java/com/adyen/serializer/ModelTest.java
+++ b/src/test/java/com/adyen/serializer/ModelTest.java
@@ -198,7 +198,7 @@ public void testFromJsonCheckoutPaymentMethodBcmcMobile() throws Exception {
     assertEquals("7219687191761347", storedPaymentMethodDetails.getStoredPaymentMethodId());
   }
 
-	// test null values are not serialized
+  // test null values are not serialized
   @Test
   public void testToJsonTerminalSettingsSurchargeNotSet() throws JsonProcessingException {
     TerminalSettings terminalSettings = new TerminalSettings();
@@ -208,18 +208,19 @@ public void testToJsonTerminalSettingsSurchargeNotSet() throws JsonProcessingExc
     assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"}}", json);
   }
 
-	// test values set as null are not serialized when includeNullValues is false
-	@Test
-	public void testToJsonTerminalSettingsSurchargeSetToNullWithoutEnablingIncludeNullValues() throws JsonProcessingException {
-		TerminalSettings terminalSettings = new TerminalSettings();
-		terminalSettings
-				.connectivity(new Connectivity().simcardStatus(Connectivity.SimcardStatusEnum.ACTIVATED))
-				.setSurcharge(null);
-		String json = terminalSettings.toJson();
-		assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"}}", json);
-	}
-
-	// test values set as null (using setters) are serialized
+  // test values set as null are not serialized when includeNullValues is false
+  @Test
+  public void testToJsonTerminalSettingsSurchargeSetToNullWithoutEnablingIncludeNullValues()
+      throws JsonProcessingException {
+    TerminalSettings terminalSettings = new TerminalSettings();
+    terminalSettings
+        .connectivity(new Connectivity().simcardStatus(Connectivity.SimcardStatusEnum.ACTIVATED))
+        .setSurcharge(null);
+    String json = terminalSettings.toJson();
+    assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"}}", json);
+  }
+
+  // test values set as null (using setters) are serialized
   @Test
   public void testToJsonTerminalSettingsSurchargeSetToNull() throws JsonProcessingException {
     TerminalSettings terminalSettings = new TerminalSettings();
@@ -231,7 +232,7 @@ public void testToJsonTerminalSettingsSurchargeSetToNull() throws JsonProcessing
     assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"},\"surcharge\":null}", json);
   }
 
-	// test values set as null (using build methods) are serialized
+  // test values set as null (using build methods) are serialized
   @Test
   public void testToJsonTerminalSettingsSurchargeChainToNull() throws JsonProcessingException {
     TerminalSettings terminalSettings = new TerminalSettings();
@@ -243,20 +244,22 @@ public void testToJsonTerminalSettingsSurchargeChainToNull() throws JsonProcessi
     assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"},\"surcharge\":null}", json);
   }
 
-	// test values, that are not explicitly SET as null, are not serialized (even when includeNullValues is true)
-	@Test
-	public void testToJsonFlagTrueButFieldNotSet() throws JsonProcessingException {
-		TerminalSettings terminalSettings = new TerminalSettings();
-		// must consider null values that are explicitly set
-		terminalSettings.includeNullValues(true);
+  // test values, that are not explicitly SET as null, are not serialized (even when
+  // includeNullValues is true)
+  @Test
+  public void testToJsonFlagTrueButFieldNotSet() throws JsonProcessingException {
+    TerminalSettings terminalSettings = new TerminalSettings();
+    // must consider null values that are explicitly set
+    terminalSettings.includeNullValues(true);
 
-		// We set connectivity, but we NEVER touch 'surcharge'
-		terminalSettings.setConnectivity(new Connectivity().simcardStatus(Connectivity.SimcardStatusEnum.ACTIVATED));
+    // We set connectivity, but we NEVER touch 'surcharge'
+    terminalSettings.setConnectivity(
+        new Connectivity().simcardStatus(Connectivity.SimcardStatusEnum.ACTIVATED));
 
-		String json = terminalSettings.toJson();
+    String json = terminalSettings.toJson();
 
-		// Expectation: 'surcharge' should NOT be present, even though the flag is true.
-		// It should only be present if we called setSurcharge().
-		assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"}}", json);
-	}
+    // Expectation: 'surcharge' should NOT be present, even though the flag is true.
+    // It should only be present if we called setSurcharge().
+    assertEquals("{\"connectivity\":{\"simcardStatus\":\"ACTIVATED\"}}", json);
+  }
 }