diff --git a/src/XrmMockup365/Core.cs b/src/XrmMockup365/Core.cs
index 8fe3d26d..fe177cce 100644
--- a/src/XrmMockup365/Core.cs
+++ b/src/XrmMockup365/Core.cs
@@ -1046,7 +1046,12 @@ private OrganizationResponse ExecuteRequest(
             var handler = RequestHandlers.FirstOrDefault(x => x.HandlesRequest(request.RequestName));
             if (handler != null)
             {
-                return handler.Execute(request, userRef);
+                var response = handler.Execute(request, userRef);
+                if (response != null && string.IsNullOrEmpty(response.ResponseName))
+                {
+                    response.ResponseName = request.RequestName;
+                }
+                return response;
             }
 
             if (settings.ExceptionFreeRequests?.Contains(request.RequestName) ?? false)
diff --git a/src/XrmMockup365/Internal/Utility.cs b/src/XrmMockup365/Internal/Utility.cs
index 5ba1638a..15064846 100644
--- a/src/XrmMockup365/Internal/Utility.cs
+++ b/src/XrmMockup365/Internal/Utility.cs
@@ -1044,6 +1044,61 @@ public static object ConvertValueFromSerializableDTO(TableColumnDTO colToSeriali
                 var newCollection = new OptionSetValueCollection(typed.Values.Select(x => new OptionSetValue(x)).ToList());
                 return newCollection;
             }
+            else if (type == typeof(EntityCollection))
+            {
+                var node = JsonNode.Parse(colToSerialize.Value);
+                var typed = (EntityCollectionDTO)node.Deserialize(typeof(EntityCollectionDTO));
+
+                // Manually deserialize entities
+                var entities = new List<Entity>();
+                if (typed.Entities.ValueKind == JsonValueKind.Array)
+                {
+                    foreach (var entityElement in typed.Entities.EnumerateArray())
+                    {
+                        var entity = new Entity();
+
+                        // Deserialize LogicalName
+                        if (entityElement.TryGetProperty("LogicalName", out var logicalNameProp))
+                        {
+                            entity.LogicalName = logicalNameProp.GetString();
+                        }
+
+                        // Deserialize Id
+                        if (entityElement.TryGetProperty("Id", out var idProp) && idProp.ValueKind == JsonValueKind.String)
+                        {
+                            entity.Id = Guid.Parse(idProp.GetString());
+                        }
+
+                        // Deserialize Attributes
+                        if (entityElement.TryGetProperty("Attributes", out var attributesProp) && attributesProp.ValueKind == JsonValueKind.Array)
+                        {
+                            foreach (var attr in attributesProp.EnumerateArray())
+                            {
+                                if (attr.TryGetProperty("Key", out var keyProp) && attr.TryGetProperty("Value", out var valueProp))
+                                {
+                                    var key = keyProp.GetString();
+                                    // Recursively deserialize attribute values (could be EntityReference, etc.)
+                                    var value = JsonSerializer.Deserialize<object>(valueProp.GetRawText());
+                                    entity[key] = value;
+                                }
+                            }
+                        }
+
+                        entities.Add(entity);
+                    }
+                }
+
+                var newCollection = new EntityCollection(entities)
+                {
+                    MoreRecords = typed.MoreRecords,
+                    PagingCookie = typed.PagingCookie,
+                    MinActiveRowVersion = typed.MinActiveRowVersion,
+                    TotalRecordCount = typed.TotalRecordCount,
+                    TotalRecordCountLimitExceeded = typed.TotalRecordCountLimitExceeded,
+                    EntityName = typed.EntityName
+                };
+                return newCollection;
+            }
             else if (type == typeof(BooleanManagedProperty))
             {
                 var node = JsonNode.Parse(colToSerialize.Value);
diff --git a/src/XrmMockup365/Serialization/EntityCollectionDTO.cs b/src/XrmMockup365/Serialization/EntityCollectionDTO.cs
new file mode 100644
index 00000000..2794b88f
--- /dev/null
+++ b/src/XrmMockup365/Serialization/EntityCollectionDTO.cs
@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+using System.Text.Json;
+
+namespace DG.Tools.XrmMockup.Serialization
+{
+    public class EntityCollectionDTO
+    {
+        public JsonElement Entities { get; set; }
+        public bool MoreRecords { get; set; }
+        public string PagingCookie { get; set; }
+        public string MinActiveRowVersion { get; set; }
+        public int TotalRecordCount { get; set; }
+        public bool TotalRecordCountLimitExceeded { get; set; }
+        public string EntityName { get; set; }
+    }
+}