diff --git a/README.md b/README.md
index 8d5466737..414d53cd4 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Business logic core of the application and a REST API that provides access to ot
 
 ### Prerequisites
 
-You need a web server with PHP (8.1+) and MySQL or MariaDB database.
+You need a web server with PHP (8.2+, 8.3 currently used in development) and MySQL or MariaDB database.
 
 We recommend installing PHP from remi repository:
 
@@ -28,7 +28,7 @@ You may list the PHP modules thusly:
 ...and select the right module:
 
 ```
-# dnf module enable php:remi-8.1
+# dnf module enable php:remi-8.3
 ```
 
 If you install core-api as a package, the PHP will be installed as dependencies.
@@ -65,7 +65,7 @@ installation to the end.
 
 ### Manual Installation
 
-The web API requires a PHP runtime version at least 8.1. Which one depends on
+The web API requires a PHP runtime version at least 8.2. Which one depends on
 actual configuration, there is a choice between _mod_php_ inside Apache,
 _php-fpm_ with Apache or Nginx proxy or running it as standalone uWSGI script.
 Also see the required PHP modules in the prerequisites section.
diff --git a/app/V1Module/presenters/GroupExternalAttributesPresenter.php b/app/V1Module/presenters/GroupExternalAttributesPresenter.php
index 0cdd3df80..717ecac8b 100644
--- a/app/V1Module/presenters/GroupExternalAttributesPresenter.php
+++ b/app/V1Module/presenters/GroupExternalAttributesPresenter.php
@@ -2,19 +2,22 @@
 
 namespace App\V1Module\Presenters;
 
+use App\Exceptions\BadRequestException;
 use App\Helpers\MetaFormats\Attributes\Post;
 use App\Helpers\MetaFormats\Attributes\Query;
 use App\Helpers\MetaFormats\Attributes\Path;
 use App\Helpers\MetaFormats\Validators\VString;
 use App\Helpers\MetaFormats\Validators\VUuid;
 use App\Exceptions\ForbiddenRequestException;
-use App\Exceptions\BadRequestException;
+use App\Exceptions\NotFoundException;
+use App\Exceptions\InternalServerException;
 use App\Model\Repository\GroupExternalAttributes;
+use App\Model\Repository\GroupMemberships;
 use App\Model\Repository\Groups;
 use App\Model\Entity\GroupExternalAttribute;
 use App\Model\View\GroupViewFactory;
 use App\Security\ACL\IGroupPermissions;
-use InvalidArgumentException;
+use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
 
 /**
  * Additional attributes used by 3rd parties to keep relations between groups and entities in external systems.
@@ -28,6 +31,12 @@ class GroupExternalAttributesPresenter extends BasePresenter
      */
     public $groupExternalAttributes;
 
+    /**
+     * @var GroupMemberships
+     * @inject
+     */
+    public $groupMemberships;
+
     /**
      * @var Groups
      * @inject
@@ -54,48 +63,41 @@ public function checkDefault()
     }
 
     /**
-     * Return all attributes that correspond to given filtering parameters.
+     * Return special brief groups entities with injected external attributes and given user affiliation.
      * @GET
-     *
-     * The filter is encoded as array of objects (logically represented as disjunction of clauses)
-     * -- i.e., [clause1 OR clause2 ...]. Each clause is an object with the following keys:
-     * "group", "service", "key", "value" that match properties of GroupExternalAttribute entity.
-     * The values are expected values matched with == in the search. Any of the keys may be omitted or null
-     * which indicate it should not be matched in the particular clause.
-     * A clause must contain at least one of the four keys.
-     *
-     * The endpoint will return a list of matching attributes and all related group entities.
      */
-    #[Query("filter", new VString(), "JSON-encoded filter query in DNF as [clause OR clause...]", required: true)]
-    public function actionDefault(?string $filter)
+    #[Query("instance", new VUuid(), "ID of the instance, whose groups are returned.", required: true)]
+    #[Query(
+        "service",
+        new VString(),
+        "ID of the external service, of which the attributes are returned. If missing, all attributes are returned.",
+        required: false
+    )]
+    #[Query(
+        "user",
+        new VUuid(),
+        "Relationship info of this user is included for each returned group.",
+        required: false
+    )]
+    public function actionDefault(string $instance, ?string $service, ?string $user)
     {
-        $filterStruct = json_decode($filter ?? '', true);
-        if (!$filterStruct || !is_array($filterStruct)) {
-            throw new BadRequestException("Invalid filter format.");
-        }
-
-        try {
-            $attributes = $this->groupExternalAttributes->findByFilter($filterStruct);
-        } catch (InvalidArgumentException $e) {
-            throw new BadRequestException($e->getMessage(), '', null, $e);
-        }
-
-        $groupIds = [];
-        foreach ($attributes as $attribute) {
-            $groupIds[$attribute->getGroup()->getId()] = true; // id is key to make it unique
-        }
-
-        $groups = $this->groups->groupsAncestralClosure(array_keys($groupIds));
-        $this->sendSuccessResponse([
-            "attributes" => $attributes,
-            "groups" => $this->groupViewFactory->getGroups($groups),
-        ]);
+        $filter = $service ? [['service' => $service]] : [];
+        $attributes = $this->groupExternalAttributes->findByFilter($filter); // all attributes of selected service
+        $groups = $this->groups->findFiltered(null, $instance, null, false); // all but archived groups
+        $memberships = $user ? $this->groupMemberships->findByUser($user) : [];
+
+        $this->sendSuccessResponse($this->groupViewFactory->getGroupsForExtension(
+            $groups,
+            $attributes,
+            $memberships,
+        ));
     }
 
 
-    public function checkAdd()
+    public function checkAdd(string $groupId)
     {
-        if (!$this->groupAcl->canSetExternalAttributes()) {
+        $group = $this->groups->findOrThrow($groupId);
+        if (!$this->groupAcl->canSetExternalAttributes($group)) {
             throw new ForbiddenRequestException();
         }
     }
@@ -107,7 +109,7 @@ public function checkAdd()
     #[Post("service", new VString(1, 32), "Identifier of the external service creating the attribute", required: true)]
     #[Post("key", new VString(1, 32), "Key of the attribute (must be valid identifier)", required: true)]
     #[Post("value", new VString(0, 255), "Value of the attribute (arbitrary string)", required: true)]
-    #[Path("groupId", new VString(), required: true)]
+    #[Path("groupId", new VUuid(), required: true)]
     public function actionAdd(string $groupId)
     {
         $group = $this->groups->findOrThrow($groupId);
@@ -116,15 +118,21 @@ public function actionAdd(string $groupId)
         $service = $req->getPost("service");
         $key = $req->getPost("key");
         $value = $req->getPost("value");
-        $attribute = new GroupExternalAttribute($group, $service, $key, $value);
-        $this->groupExternalAttributes->persist($attribute);
+
+        try {
+            $attribute = new GroupExternalAttribute($group, $service, $key, $value);
+            $this->groupExternalAttributes->persist($attribute);
+        } catch (UniqueConstraintViolationException) {
+            throw new BadRequestException("Attribute already exists.");
+        }
 
         $this->sendSuccessResponse("OK");
     }
 
-    public function checkRemove()
+    public function checkRemove(string $groupId)
     {
-        if (!$this->groupAcl->canSetExternalAttributes()) {
+        $group = $this->groups->findOrThrow($groupId);
+        if (!$this->groupAcl->canSetExternalAttributes($group)) {
             throw new ForbiddenRequestException();
         }
     }
@@ -133,11 +141,26 @@ public function checkRemove()
      * Remove selected attribute
      * @DELETE
      */
-    #[Path("id", new VUuid(), "Identifier of the external attribute.", required: true)]
-    public function actionRemove(string $id)
+    #[Query("service", new VString(1, 32), "Identifier of the external service creating the attribute", required: true)]
+    #[Query("key", new VString(1, 32), "Key of the attribute (must be valid identifier)", required: true)]
+    #[Query("value", new VString(0, 255), "Value of the attribute (arbitrary string)", required: true)]
+    #[Path("groupId", new VUuid(), required: true)]
+    public function actionRemove(string $groupId, string $service, string $key, string $value)
     {
-        $attribute = $this->groupExternalAttributes->findOrThrow($id);
-        $this->groupExternalAttributes->remove($attribute);
+        $attributes = $this->groupExternalAttributes->findBy(
+            ['group' => $groupId, 'service' => $service, 'key' => $key, 'value' => $value]
+        );
+        if (!$attributes) {
+            throw new NotFoundException("Specified attribute not found at selected group");
+        }
+        if (count($attributes) > 1) {
+            throw new InternalServerException(
+                "Unique constraint violation "
+                    . "(multiple '$key' => '$value' attributes found at $groupId from service $service)"
+            );
+        }
+
+        $this->groupExternalAttributes->remove($attributes[0]);
         $this->sendSuccessResponse("OK");
     }
 }
diff --git a/app/V1Module/router/RouterFactory.php b/app/V1Module/router/RouterFactory.php
index e8da44161..afeafc2f7 100644
--- a/app/V1Module/router/RouterFactory.php
+++ b/app/V1Module/router/RouterFactory.php
@@ -312,7 +312,7 @@ private static function createGroupAttributesRoutes(string $prefix): RouteList
 
         $router[] = new GetRoute($prefix, "GroupExternalAttributes:");
         $router[] = new PostRoute("$prefix/<groupId>", "GroupExternalAttributes:add");
-        $router[] = new DeleteRoute("$prefix/<id>", "GroupExternalAttributes:remove");
+        $router[] = new DeleteRoute("$prefix/<groupId>", "GroupExternalAttributes:remove");
         return $router;
     }
 
diff --git a/app/V1Module/security/ACL/IGroupPermissions.php b/app/V1Module/security/ACL/IGroupPermissions.php
index 594e0c3ea..ba20ab979 100644
--- a/app/V1Module/security/ACL/IGroupPermissions.php
+++ b/app/V1Module/security/ACL/IGroupPermissions.php
@@ -78,5 +78,5 @@ public function canUnlockStudent(Group $group, User $student): bool;
 
     public function canViewExternalAttributes(): bool;
 
-    public function canSetExternalAttributes(): bool;
+    public function canSetExternalAttributes(Group $group): bool;
 }
diff --git a/app/V1Module/security/TokenScope.php b/app/V1Module/security/TokenScope.php
index 766c0848f..4e99f7092 100644
--- a/app/V1Module/security/TokenScope.php
+++ b/app/V1Module/security/TokenScope.php
@@ -43,9 +43,9 @@ class TokenScope
     public const EMAIL_VERIFICATION = "email-verification";
 
     /**
-     * Scope used for 3rd party tools designed to externally manage groups and student memeberships.
+     * Scope used for 3rd party tools designed to externally manage groups and student memberships.
      */
-    public const GROUP_EXTERNAL_ATTRIBUTES = "group-external-attributes";
+    public const GROUP_EXTERNAL = "group-external";
 
     /**
      * Scope for managing the users. Used in case the user data needs to be updated from an external database.
diff --git a/app/config/permissions.neon b/app/config/permissions.neon
index 2834f66b1..744f17136 100644
--- a/app/config/permissions.neon
+++ b/app/config/permissions.neon
@@ -75,19 +75,32 @@ permissions:
           - viewDetail
 
     - allow: true
-      role: scope-group-external-attributes
+      role: scope-group-external
       resource: group
       actions:
           - viewExternalAttributes
+
+    - allow: true
+      role: scope-group-external
+      resource: group
+      actions:
           - setExternalAttributes
-          - viewStudents
-          - viewAll
-          - viewPublicDetail
-          - viewDetail
           - addStudent
           - removeStudent
           - addMember
           - removeMember
+          - addSubgroup
+      conditions:
+          - group.isNotArchived
+
+    - allow: true
+      resource: group
+      role: scope-group-external
+      actions:
+          - addSubgroup
+      conditions:
+          - group.isNotArchived
+          - group.isNotExam
 
     - allow: true
       role: student
diff --git a/app/model/entity/GroupExternalAttribute.php b/app/model/entity/GroupExternalAttribute.php
index b003e8343..ac2c52725 100644
--- a/app/model/entity/GroupExternalAttribute.php
+++ b/app/model/entity/GroupExternalAttribute.php
@@ -38,7 +38,7 @@ class GroupExternalAttribute implements JsonSerializable
     protected $service;
 
     /**
-     * @ORM\Column(type="string", length=32)
+     * @ORM\Column(name="`key`", type="string", length=32)
      * Key of the attribute under which it can be searched.
      */
     protected $key;
diff --git a/app/model/repository/GroupMemberships.php b/app/model/repository/GroupMemberships.php
index ee34959e4..c8f5a7963 100644
--- a/app/model/repository/GroupMemberships.php
+++ b/app/model/repository/GroupMemberships.php
@@ -14,4 +14,18 @@ public function __construct(EntityManagerInterface $em)
     {
         parent::__construct($em, GroupMembership::class);
     }
+
+    /**
+     * Find all group memberships for a specific user in non-archived groups.
+     * @param string $userId
+     * @return GroupMembership[]
+     */
+    public function findByUser(string $userId): array
+    {
+        $qb = $this->createQueryBuilder('gm')->join('gm.group', 'g');
+        $qb->where('g.archivedAt IS NULL');
+        $qb->andWhere($qb->expr()->eq('gm.user', ':userId'))
+            ->setParameter('userId', $userId);
+        return $qb->getQuery()->getResult();
+    }
 }
diff --git a/app/model/view/GroupViewFactory.php b/app/model/view/GroupViewFactory.php
index 5f01a99df..74c441e42 100644
--- a/app/model/view/GroupViewFactory.php
+++ b/app/model/view/GroupViewFactory.php
@@ -9,6 +9,8 @@
 use App\Model\Entity\AssignmentSolution;
 use App\Model\Entity\Group;
 use App\Model\Entity\GroupExamLock;
+use App\Model\Entity\GroupExternalAttribute;
+use App\Model\Entity\GroupMembership;
 use App\Model\Entity\ShadowAssignment;
 use App\Model\Entity\ShadowAssignmentPoints;
 use App\Model\Entity\User;
@@ -326,4 +328,89 @@ public function getGroupExamLocks(Group $group, array $locks): array
             return $res;
         }, $locks);
     }
+
+    /**
+     * Get a subset of group data relevant (available) for ReCodEx extensions (plugins).
+     * @param Group $group to be rendered
+     * @param array $injectAttributes [service][key] => value
+     * @param string|null $membershipType GroupMembership::TYPE_* value for user who made the search
+     * @return array
+     */
+    public function getGroupForExtension(
+        Group $group,
+        array $injectAttributes = [],
+        ?string $membershipType = null,
+        array $adminUsers = [],
+    ): array {
+        $admins = [];
+        foreach ($group->getPrimaryAdminsIds() as $id) {
+            $admins[$id] = null;
+            if (array_key_exists($id, $adminUsers)) {
+                $admins[$id] = $adminUsers[$id]->getNameParts(); // an array with name and title components
+                $admins[$id]['email'] = $adminUsers[$id]->getEmail();
+            }
+        }
+        return [
+            "id" => $group->getId(),
+            "parentGroupId" => $group->getParentGroup() ? $group->getParentGroup()->getId() : null,
+            "admins" => $admins,
+            "localizedTexts" => $group->getLocalizedTexts()->getValues(),
+            "organizational" => $group->isOrganizational(),
+            "exam" => $group->isExam(),
+            "public" => $group->isPublic(),
+            "detaining" => $group->isDetaining(),
+            "attributes" => $injectAttributes,
+            "membership" => $membershipType,
+        ];
+    }
+
+    /**
+     * Get a subset of groups data relevant (available) for ReCodEx extensions (plugins).
+     * @param Group[] $groups
+     * @param GroupExternalAttribute[] $attributes
+     * @param GroupMembership[] $memberships GroupMembership[] to filter by
+     */
+    public function getGroupsForExtension(array $groups, array $attributes = [], array $memberships = []): array
+    {
+        // create a multi-dimensional map [groupId][attr-service][attr-key] => attr-value
+        $attributesMap = [];
+        foreach ($attributes as $attribute) {
+            $gid = $attribute->getGroup()->getId();
+            $attributesMap[$gid] = $attributesMap[$gid] ?? [];
+
+            $service = $attribute->getService();
+            $attributesMap[$gid][$service] = $attributesMap[$gid][$service] ?? [];
+
+            $key = $attribute->getKey();
+            $attributesMap[$gid][$service][$key] = $attributesMap[$gid][$service][$key] ?? [];
+            $attributesMap[$gid][$service][$key][] = $attribute->getValue();
+        }
+
+        // create membership mapping group-id => membership-type
+        $membershipsMap = [];
+        foreach ($memberships as $membership) {
+            $gid = $membership->getGroup()->getId();
+            $membershipsMap[$gid] = $membership->getType();
+        }
+
+        $admins = [];
+        foreach ($groups as $group) {
+            foreach ($group->getPrimaryAdmins() as $admin) {
+                $admins[$admin->getId()] = $admin;
+            }
+        }
+
+        return array_map(
+            function (Group $group) use ($attributesMap, $membershipsMap, $admins) {
+                $id = $group->getId();
+                return $this->getGroupForExtension(
+                    $group,
+                    $attributesMap[$id] ?? [],
+                    $membershipsMap[$id] ?? null,
+                    $admins
+                );
+            },
+            $groups
+        );
+    }
 }
diff --git a/docs/swagger.yaml b/docs/swagger.yaml
index aa4086e65..7318a38b6 100644
--- a/docs/swagger.yaml
+++ b/docs/swagger.yaml
@@ -2228,7 +2228,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   /v1/groups/validate-add-group-data:
     post:
@@ -2292,7 +2292,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
     post:
       summary: 'Update group info'
@@ -2365,7 +2365,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
     delete:
       summary: 'Delete a group'
@@ -2443,7 +2443,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   '/v1/groups/{id}/archived':
     post:
@@ -2486,7 +2486,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   '/v1/groups/{id}/examPeriod':
     post:
@@ -2539,7 +2539,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
     delete:
       summary: 'Change the group back to regular group (remove information about an exam).'
@@ -2568,7 +2568,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   '/v1/groups/{id}/exam/{examId}':
     get:
@@ -2701,7 +2701,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
     delete:
       summary: 'Remove a student from a group'
@@ -2738,7 +2738,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   '/v1/groups/{id}/students/{userId}/solutions':
     get:
@@ -2885,7 +2885,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
     delete:
       summary: 'Remove a member (other than student) from a group'
@@ -2922,7 +2922,7 @@ paths:
                 properties:
                   success: { description: 'Whether the request was processed successfully.', type: boolean, example: 'true', nullable: false }
                   code: { description: 'HTTP response code.', type: integer, example: '0', nullable: false }
-                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'The instance ID of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the group has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: 'Whether the group statistics are public', type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group is detaining', type: boolean, example: 'true', nullable: false }, threshold: { description: 'The group assignment point threshold', type: number, example: '0.1', nullable: false }, pointsLimit: { description: 'The group points limit', type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether there is a strict exam lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All group exams', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
+                  payload: { description: 'The payload of the response.', properties: { id: { description: 'An identifier of the group', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, externalId: { description: 'An informative, human readable identifier of the group', type: string, example: text, nullable: true }, organizational: { description: 'Whether the group is organizational (no assignments nor students).', type: boolean, example: 'true', nullable: false }, exam: { description: 'Whether the group is an exam group.', type: boolean, example: 'true', nullable: false }, archived: { description: 'Whether the group is archived', type: boolean, example: 'true', nullable: false }, public: { description: 'Should the group be visible to all student?', type: boolean, example: 'true', nullable: false }, directlyArchived: { description: 'Whether the group was explicitly marked as archived', type: boolean, example: 'true', nullable: false }, localizedTexts: { description: 'Localized names and descriptions', type: array, items: {  }, nullable: false }, primaryAdminsIds: { description: 'IDs of users which are explicitly listed as direct admins of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, parentGroupId: { description: 'Identifier of the parent group (absent for a top-level group)', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, parentGroupsIds: { description: 'Identifications of groups in descending order.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, childGroups: { description: 'Identifications of child groups.', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, privateData: { description: '', properties: { admins: { description: 'IDs of all users that have admin privileges to this group (including inherited)', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, supervisors: { description: 'IDs of all group supervisors', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, observers: { description: 'IDs of all group observers', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, students: { description: 'IDs of the students of this group', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, instanceId: { description: 'ID of an instance in which the group belongs', type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000, nullable: false }, hasValidLicence: { description: 'Whether the instance where the group belongs has a valid license', type: boolean, example: 'true', nullable: false }, assignments: { description: 'IDs of all group assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, shadowAssignments: { description: 'IDs of all group shadow assignments', type: array, items: { type: string, pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$', example: 10000000-2000-4000-8000-160000000000 }, nullable: false }, publicStats: { description: "Whether the student's results are visible to other students", type: boolean, example: 'true', nullable: false }, detaining: { description: 'Whether the group detains the students (so they can be released only by the teacher)', type: boolean, example: 'true', nullable: false }, threshold: { description: 'A relative number of points a student must receive from assignments to fulfill the requirements of the group', type: number, example: '0.1', nullable: false }, pointsLimit: { description: "A minimal number of points that a student must receive to fulfill the group's requirements", type: integer, example: '0', nullable: false }, bindings: { description: 'Entities bound to the group', type: array, items: {  }, nullable: false }, examBegin: { description: 'The time when the exam starts if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examEnd: { description: 'The time when the exam ends if there is an exam scheduled', type: integer, example: '1740135333', nullable: false }, examLockStrict: { description: 'Whether the scheduled exam requires a strict access lock', type: boolean, example: 'true', nullable: false }, exams: { description: 'All past exams (with at least one student locked)', type: array, items: {  }, nullable: false } }, type: object, nullable: false }, permissionHints: { description: '', type: array, items: {  }, nullable: false } }, type: object, nullable: false }
                 type: object
   '/v1/groups/{id}/assignments':
     get:
@@ -3099,17 +3099,35 @@ paths:
           description: 'Placeholder response'
   /v1/group-attributes:
     get:
-      summary: 'Return all attributes that correspond to given filtering parameters.'
-      description: 'Return all attributes that correspond to given filtering parameters.'
+      summary: 'Return special brief groups entities with injected external attributes and given user affiliation.'
+      description: 'Return special brief groups entities with injected external attributes and given user affiliation.'
       operationId: groupExternalAttributesPresenterActionDefault
       parameters:
         -
-          name: filter
+          name: instance
           in: query
-          description: 'JSON-encoded filter query in DNF as [clause OR clause...]'
+          description: 'ID of the instance, whose groups are returned.'
           required: true
           schema:
             type: string
+            pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'
+            nullable: false
+        -
+          name: service
+          in: query
+          description: 'ID of the external service, of which the attributes are returned. If missing, all attributes are returned.'
+          required: false
+          schema:
+            type: string
+            nullable: false
+        -
+          name: user
+          in: query
+          description: 'Relationship info of this user is included for each returned group.'
+          required: false
+          schema:
+            type: string
+            pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'
             nullable: false
       responses:
         '200':
@@ -3127,6 +3145,7 @@ paths:
           required: true
           schema:
             type: string
+            pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'
             nullable: false
       requestBody:
         content:
@@ -3161,21 +3180,49 @@ paths:
       responses:
         '200':
           description: 'Placeholder response'
-  '/v1/group-attributes/{id}':
     delete:
       summary: 'Remove selected attribute'
       description: 'Remove selected attribute'
       operationId: groupExternalAttributesPresenterActionRemove
       parameters:
         -
-          name: id
+          name: groupId
           in: path
-          description: 'Identifier of the external attribute.'
+          description: ''
           required: true
           schema:
             type: string
             pattern: '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'
             nullable: false
+        -
+          name: service
+          in: query
+          description: 'Identifier of the external service creating the attribute'
+          required: true
+          schema:
+            type: string
+            maxLength: 32
+            minLength: 1
+            nullable: false
+        -
+          name: key
+          in: query
+          description: 'Key of the attribute (must be valid identifier)'
+          required: true
+          schema:
+            type: string
+            maxLength: 32
+            minLength: 1
+            nullable: false
+        -
+          name: value
+          in: query
+          description: 'Value of the attribute (arbitrary string)'
+          required: true
+          schema:
+            type: string
+            maxLength: 255
+            nullable: false
       responses:
         '200':
           description: 'Placeholder response'
@@ -6997,4 +7044,4 @@ paths:
       responses:
         '200':
           description: 'Placeholder response'
-
+
diff --git a/tests/Presenters/GroupExternalAttributesPresenter.phpt b/tests/Presenters/GroupExternalAttributesPresenter.phpt
index 5f74012ba..ef57c4ef0 100644
--- a/tests/Presenters/GroupExternalAttributesPresenter.phpt
+++ b/tests/Presenters/GroupExternalAttributesPresenter.phpt
@@ -2,11 +2,9 @@
 
 $container = require_once __DIR__ . "/../bootstrap.php";
 
-use App\Model\Entity\Group;
-use App\Model\Entity\GroupInvitation;
-use App\Model\Repository\Groups;
-use App\Model\Repository\GroupInvitations;
 use App\V1Module\Presenters\GroupExternalAttributesPresenter;
+use App\Model\Repository\Users;
+use App\Model\Repository\GroupMemberships;
 use App\Exceptions\BadRequestException;
 use App\Security\TokenScope;
 use Doctrine\ORM\EntityManagerInterface;
@@ -31,6 +29,12 @@ class TestGroupExternalAttributesPresenter extends Tester\TestCase
     /** @var Nette\Security\User */
     private $user;
 
+    /** @var Users */
+    private $users;
+
+    /** @var GroupMemberships */
+    private $groupMemberships;
+
     /** @var App\Security\AccessManager */
     private $accessManager;
 
@@ -41,6 +45,8 @@ class TestGroupExternalAttributesPresenter extends Tester\TestCase
         $this->container = $container;
         $this->em = PresenterTestHelper::getEntityManager($container);
         $this->user = $container->getByType(\Nette\Security\User::class);
+        $this->users = $container->getByType(Users::class);
+        $this->groupMemberships = $container->getByType(GroupMemberships::class);
         $this->accessManager = $container->getByType(\App\Security\AccessManager::class);
     }
 
@@ -58,144 +64,129 @@ class TestGroupExternalAttributesPresenter extends Tester\TestCase
         Mockery::close();
     }
 
-    private function checkFilterResults(array $payload, int $attrCount, int $groupCount)
-    {
-        Assert::count(2, $payload);
-        Assert::true(array_key_exists('attributes', $payload));
-        Assert::true(array_key_exists('groups', $payload));
-        Assert::count($attrCount, $payload['attributes']);
-        Assert::count($groupCount, $payload['groups']);
-
-        $indexedGroups = [];
-        foreach ($payload['groups'] as $group) {
-            $indexedGroups[$group['id']] = $group['parentGroupId'];
-        }
-
-        foreach ($payload['attributes'] as $attribute) {
-            $groupId = $attribute->getGroup()->getId();
-            while ($groupId) {
-                Assert::true(array_key_exists($groupId, $indexedGroups));
-                $groupId = $indexedGroups[$groupId];
-            }
-        }
-    }
-
-    public function testGetAttributesSemester()
+    public function testGetGroupsNoUser()
     {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL]);
+        $groups = $this->presenter->groups->findBy(['archivedAt' => null]);
+        Assert::true(count($groups) > 0);
+        $instanceId = $groups[0]->getInstance()->getId();
 
-        $filter = [[ "key" => "semester", "value" => "summer" ]];
         $payload = PresenterTestHelper::performPresenterRequest(
             $this->presenter,
             'V1:GroupExternalAttributes',
             'GET',
-            ['action' => 'default', 'filter' => json_encode($filter)],
+            ['action' => 'default', 'instance' => $instanceId, 'service' => 'test'],
         );
 
-        $this->checkFilterResults($payload, 1, 3);
-        Assert::equal('test', $payload['attributes'][0]->getService());
-        Assert::equal('semester', $payload['attributes'][0]->getKey());
-        Assert::equal('summer', $payload['attributes'][0]->getValue());
-    }
+        Assert::count(count($groups), $payload);
+        $indexedPayload = [];
+        foreach ($payload as $group) {
+            $indexedPayload[$group['id']] = $group;
+        }
 
-    public function testGetAttributesLecture()
-    {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        foreach ($groups as $group) {
+            Assert::true(array_key_exists($group->getId(), $indexedPayload));
+            $groupPayload = $indexedPayload[$group->getId()];
+
+            // check basic group parameters
+            Assert::count(count($group->getPrimaryAdmins()), $groupPayload['admins']);
+            Assert::equal($group->isOrganizational(), $groupPayload['organizational']);
+            Assert::equal($group->isExam(), $groupPayload['exam']);
+            Assert::equal($group->isPublic(), $groupPayload['public']);
+            Assert::equal($group->isDetaining(), $groupPayload['detaining']);
+
+            // attributes
+            Assert::true(array_key_exists('attributes', $groupPayload));
+            $testAttributesCount = 0;
+            foreach ($group->getExternalAttributes() as $attribute) {
+                if ($attribute->getService() !== 'test') {
+                    continue; // only 'test' attributes were requested
+                }
+                ++$testAttributesCount;
+                $values = $groupPayload['attributes'][$attribute->getService()][$attribute->getKey()] ?? null;
+                Assert::true(in_array($attribute->getValue(), $values));
+            }
 
-        $filter = [[ "key" => "lecture", "value" => "demo" ]];
-        $payload = PresenterTestHelper::performPresenterRequest(
-            $this->presenter,
-            'V1:GroupExternalAttributes',
-            'GET',
-            ['action' => 'default', 'filter' => json_encode($filter)],
-        );
+            $actualCount = 0;
+            foreach ($groupPayload['attributes']['test'] ?? [] as $values) {
+                $actualCount += count($values);
+            }
+            Assert::equal($testAttributesCount, $actualCount);
 
-        $this->checkFilterResults($payload, 1, 2);
-        Assert::equal('test', $payload['attributes'][0]->getService());
-        Assert::equal('lecture', $payload['attributes'][0]->getKey());
-        Assert::equal('demo', $payload['attributes'][0]->getValue());
+            // user membership
+            Assert::null($groupPayload['membership']);
+        }
     }
 
-    public function testGetAttributesMulti()
+    public function testGetGroupsStudent()
     {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL]);
+        $users = $this->users->findBy(['email' => PresenterTestHelper::STUDENT_GROUP_MEMBER_LOGIN]);
+        Assert::count(1, $users);
+        $user = current($users);
+
+        $groups = $this->presenter->groups->findBy(['archivedAt' => null]);
+        Assert::true(count($groups) > 0);
+        $instanceId = $groups[0]->getInstance()->getId();
 
-        $filter = [
-            [ "service" => "test", "key" => "semester", ],
-            [ "key" => "lecture", "value" => "demo" ],
-        ];
         $payload = PresenterTestHelper::performPresenterRequest(
             $this->presenter,
             'V1:GroupExternalAttributes',
             'GET',
-            ['action' => 'default', 'filter' => json_encode($filter)],
+            ['action' => 'default', 'instance' => $instanceId, 'service' => 'test', 'user' => $user->getId()],
         );
 
-        $this->checkFilterResults($payload, 3, 4);
-        $attrs = [];
-        foreach ($payload['attributes'] as $attr) {
-            Assert::equal('test', $attr->getService());
-            $attrs[] = $attr->getKey() . '=' . $attr->getValue();
+        Assert::count(count($groups), $payload);
+        $total = 0;
+        foreach ($payload as $group) {
+            $memberships = $this->groupMemberships->findBy(['group' => $group['id'], 'user' => $user->getId()]);
+            if (empty($memberships)) {
+                Assert::null($group['membership']);
+            } else {
+                Assert::count(1, $memberships);
+                Assert::equal(current($memberships)->getType(), $group['membership']);
+                ++$total;
+            }
         }
-        sort($attrs);
-        Assert::equal(['lecture=demo', 'semester=summer', 'semester=winter'], $attrs);
+        Assert::true($total > 0);
     }
 
-    public function testGetAttributesEmpty()
+    public function testGetGroupsTeacher()
     {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL]);
+        $users = $this->users->findBy(['email' => PresenterTestHelper::GROUP_SUPERVISOR_LOGIN]);
+        Assert::count(1, $users);
+        $user = current($users);
 
-        $filter = [[ "key" => "lecture", "value" => "sleeping" ]];
-        $payload = PresenterTestHelper::performPresenterRequest(
-            $this->presenter,
-            'V1:GroupExternalAttributes',
-            'GET',
-            ['action' => 'default', 'filter' => json_encode($filter)],
-        );
+        $groups = $this->presenter->groups->findBy(['archivedAt' => null]);
+        Assert::true(count($groups) > 0);
+        $instanceId = $groups[0]->getInstance()->getId();
 
-        $this->checkFilterResults($payload, 0, 0);
-    }
-
-    public function testGetAttributesEmpty2()
-    {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
-
-        $filter = [[ "service" => "3rdparty", "key" => "lecture" ]];
         $payload = PresenterTestHelper::performPresenterRequest(
             $this->presenter,
             'V1:GroupExternalAttributes',
             'GET',
-            ['action' => 'default', 'filter' => json_encode($filter)],
+            ['action' => 'default', 'instance' => $instanceId, 'service' => 'test', 'user' => $user->getId()],
         );
 
-        $this->checkFilterResults($payload, 0, 0);
-    }
-
-    public function testGetAttributesFails()
-    {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
-
-        $filters = [
-            [ "key" => "semester", "value" => "summer" ],
-            "semester: summer",
-            [[ "semester" => "summer" ]],
-            [[ "key" => "semester", "value" => 1 ]],
-        ];
-        foreach ($filters as $filter) {
-            Assert::exception(function () use ($filter) {
-                PresenterTestHelper::performPresenterRequest(
-                    $this->presenter,
-                    'V1:GroupExternalAttributes',
-                    'GET',
-                    ['action' => 'default', 'filter' => json_encode($filter)],
-                );
-            }, BadRequestException::class);
+        Assert::count(count($groups), $payload);
+        $total = 0;
+        foreach ($payload as $group) {
+            $memberships = $this->groupMemberships->findBy(['group' => $group['id'], 'user' => $user->getId()]);
+            if (empty($memberships)) {
+                Assert::null($group['membership']);
+            } else {
+                Assert::count(1, $memberships);
+                Assert::equal(current($memberships)->getType(), $group['membership']);
+                ++$total;
+            }
         }
+        Assert::true($total > 0);
     }
 
     public function testGetAttributesAdd()
     {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL]);
         $attributes = $this->presenter->groupExternalAttributes->findAll();
         Assert::count(5, $attributes);
         $attribute = current($attributes);
@@ -223,7 +214,7 @@ class TestGroupExternalAttributesPresenter extends Tester\TestCase
 
     public function testGetAttributesRemove()
     {
-        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL_ATTRIBUTES]);
+        PresenterTestHelper::loginDefaultAdmin($this->container, [TokenScope::GROUP_EXTERNAL]);
         $attributes = $this->presenter->groupExternalAttributes->findAll();
         Assert::count(5, $attributes);
         $attribute = current($attributes);
@@ -233,7 +224,13 @@ class TestGroupExternalAttributesPresenter extends Tester\TestCase
             $this->presenter,
             'V1:GroupExternalAttributes',
             'DELETE',
-            ['action' => 'remove', 'id' => $id],
+            [
+                'action' => 'remove',
+                'groupId' => $attribute->getGroup()->getId(),
+                'service' => $attribute->getService(),
+                'key' => $attribute->getKey(),
+                'value' => $attribute->getValue()
+            ],
         );
 
         Assert::equal("OK", $payload);
diff --git a/tests/Presenters/SubmitPresenter.phpt b/tests/Presenters/SubmitPresenter.phpt
index 573879c3d..98b43a4f3 100644
--- a/tests/Presenters/SubmitPresenter.phpt
+++ b/tests/Presenters/SubmitPresenter.phpt
@@ -57,7 +57,7 @@ class TestSubmitPresenter extends Tester\TestCase
         $this->assignments = $container->getByType(Assignments::class);
         $this->assignmentSolvers = $container->getByType(AssignmentSolvers::class);
 
-        // patch container, since we cannot create actual file storage manarer
+        // patch container, since we cannot create actual file storage manager
         $fsName = current($this->container->findByType(FileStorageManager::class));
         $this->container->removeService($fsName);
         $this->container->addService($fsName, new FileStorageManager(
@@ -270,7 +270,7 @@ class TestSubmitPresenter extends Tester\TestCase
         Assert::equal($tasksCount, $webSocketChannel['expectedTasksCount']);
 
         $author = $this->presenter->users->findOrThrow($solution['authorId']);
-        $solvers = $this->assignmentSolvers->findBy([ "assignment" => $assignment, "solver" => $author ]);
+        $solvers = $this->assignmentSolvers->findBy(["assignment" => $assignment, "solver" => $author]);
         Assert::count(1, $solvers);
         Assert::equal($solvers[0]->getLastAttemptIndex(), $solution['attemptIndex']);
     }