diff --git a/config/services.yaml b/config/services.yaml
index 9ee435da..78eeb3c7 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -41,6 +41,8 @@ services:
 
     # add more service definitions when explicit configuration is needed
     # please note that last definitions always *replace* previous ones
+    App\Service\IdentifierFactory\IdentifierFactoryInterface: '@App\Service\IdentifierFactory\IdentifierFactory'
+
     App\Security\Authenticator\DiscordAuthenticator:
         arguments:
             $discordServerId: '%app.security.oauth.discord.server_id%'
@@ -109,3 +111,5 @@ when@test:
             class: Symfony\Bundle\SecurityBundle\Security
             arguments:
                 - '@test.service_container'
+
+        App\Service\IdentifierFactory\IdentifierFactoryInterface: '@App\Service\IdentifierFactory\IdentifierFactoryStub'
diff --git a/src/Api/DataTransformer/Attendance/AttendanceInputDataTransformer.php b/src/Api/DataTransformer/Attendance/AttendanceInputDataTransformer.php
index c1822faf..4cdf1506 100644
--- a/src/Api/DataTransformer/Attendance/AttendanceInputDataTransformer.php
+++ b/src/Api/DataTransformer/Attendance/AttendanceInputDataTransformer.php
@@ -7,12 +7,13 @@
 use ApiPlatform\Validator\ValidatorInterface;
 use App\Api\Input\Attendance\AttendanceInput;
 use App\Entity\Attendance\Attendance;
-use Ramsey\Uuid\Uuid;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 
 class AttendanceInputDataTransformer
 {
     public function __construct(
-        private ValidatorInterface $validator
+        private ValidatorInterface $validator,
+        private IdentifierFactoryInterface $identifierFactory
     ) {
     }
 
@@ -21,7 +22,7 @@ public function transform(AttendanceInput $attendanceInput): Attendance
         $this->validator->validate($attendanceInput);
 
         return new Attendance(
-            Uuid::uuid4(),
+            $this->identifierFactory->create(),
             $attendanceInput->missionId,
             $attendanceInput->playerId
         );
diff --git a/src/Controller/Dlc/CreateAction.php b/src/Controller/Dlc/CreateAction.php
index 8ebb99d8..93b85536 100644
--- a/src/Controller/Dlc/CreateAction.php
+++ b/src/Controller/Dlc/CreateAction.php
@@ -27,7 +27,7 @@ public function __construct(
     #[IsGranted(PermissionsEnum::DLC_CREATE->value)]
     public function __invoke(Request $request): Response
     {
-        $dlcFormDto = new DlcFormDto();
+        $dlcFormDto = $this->dlcFormDtoDataTransformer->transformFromEntity(new DlcFormDto());
         $form = $this->createForm(DlcFormType::class, $dlcFormDto);
         $form->handleRequest($request);
 
diff --git a/src/Controller/Mod/CreateAction.php b/src/Controller/Mod/CreateAction.php
index cab18942..177757e2 100644
--- a/src/Controller/Mod/CreateAction.php
+++ b/src/Controller/Mod/CreateAction.php
@@ -27,7 +27,7 @@ public function __construct(
     #[IsGranted(PermissionsEnum::MOD_CREATE->value)]
     public function __invoke(Request $request): Response
     {
-        $modFormDto = new ModFormDto();
+        $modFormDto = $this->modFormDtoDataTransformer->transformFromEntity(new ModFormDto());
         $form = $this->createForm(ModFormType::class, $modFormDto);
         $form->handleRequest($request);
 
diff --git a/src/Controller/ModGroup/CreateAction.php b/src/Controller/ModGroup/CreateAction.php
index 21c19274..e9c6339a 100644
--- a/src/Controller/ModGroup/CreateAction.php
+++ b/src/Controller/ModGroup/CreateAction.php
@@ -27,7 +27,7 @@ public function __construct(
     #[IsGranted(PermissionsEnum::MOD_GROUP_CREATE->value)]
     public function __invoke(Request $request): Response
     {
-        $modGroupFormDto = new ModGroupFormDto();
+        $modGroupFormDto = $this->modGroupFormDtoDataTransformer->transformFromEntity(new ModGroupFormDto());
         $form = $this->createForm(ModGroupFormType::class, $modGroupFormDto);
         $form->handleRequest($request);
 
diff --git a/src/Controller/ModList/CreateAction.php b/src/Controller/ModList/CreateAction.php
index c8bb9f4d..c1374011 100644
--- a/src/Controller/ModList/CreateAction.php
+++ b/src/Controller/ModList/CreateAction.php
@@ -27,7 +27,7 @@ public function __construct(
     #[IsGranted(PermissionsEnum::MOD_LIST_CREATE->value)]
     public function __invoke(Request $request): Response
     {
-        $modListFormDto = new ModListFormDto();
+        $modListFormDto = $this->modListFormDtoDataTransformer->transformFromEntity(new ModListFormDto());
         $form = $this->createForm(ModListFormType::class, $modListFormDto);
         $form->handleRequest($request);
 
diff --git a/src/Controller/UserGroup/CreateAction.php b/src/Controller/UserGroup/CreateAction.php
index ef114e4a..aa4fbbc1 100644
--- a/src/Controller/UserGroup/CreateAction.php
+++ b/src/Controller/UserGroup/CreateAction.php
@@ -27,7 +27,7 @@ public function __construct(
     #[IsGranted(PermissionsEnum::USER_GROUP_CREATE->value)]
     public function __invoke(Request $request): Response
     {
-        $userGroupFormDto = new UserGroupFormDto();
+        $userGroupFormDto = $this->userGroupFormDtoDataTransformer->transformFromEntity(new UserGroupFormDto());
         $form = $this->createForm(UserGroupFormType::class, $userGroupFormDto);
         $form->handleRequest($request);
 
diff --git a/src/Form/Dlc/DataTransformer/DlcFormDtoDataTransformer.php b/src/Form/Dlc/DataTransformer/DlcFormDtoDataTransformer.php
index cc826b66..17da1f0e 100644
--- a/src/Form/Dlc/DataTransformer/DlcFormDtoDataTransformer.php
+++ b/src/Form/Dlc/DataTransformer/DlcFormDtoDataTransformer.php
@@ -6,14 +6,15 @@
 
 use App\Entity\Dlc\Dlc;
 use App\Form\Dlc\Dto\DlcFormDto;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 use App\Service\SteamApiClient\Helper\SteamHelper;
 use App\Service\SteamApiClient\SteamApiClientInterface;
-use Ramsey\Uuid\Uuid;
 
 class DlcFormDtoDataTransformer
 {
     public function __construct(
-        private SteamApiClientInterface $steamApiClient
+        private SteamApiClientInterface $steamApiClient,
+        private IdentifierFactoryInterface $identifierFactory
     ) {
     }
 
@@ -25,7 +26,7 @@ public function transformToEntity(DlcFormDto $dlcFormDto, Dlc $dlc = null): Dlc
 
         if (!$dlc instanceof Dlc) {
             return new Dlc(
-                Uuid::uuid4(),
+                $this->identifierFactory->create(),
                 $name,
                 $dlcFormDto->getDescription(),
                 $appId,
diff --git a/src/Form/Mod/DataTransformer/ModFormDtoDataTransformer.php b/src/Form/Mod/DataTransformer/ModFormDtoDataTransformer.php
index 708bc0e2..67c7856b 100644
--- a/src/Form/Mod/DataTransformer/ModFormDtoDataTransformer.php
+++ b/src/Form/Mod/DataTransformer/ModFormDtoDataTransformer.php
@@ -11,14 +11,15 @@
 use App\Entity\Mod\Enum\ModTypeEnum;
 use App\Entity\Mod\SteamWorkshopMod;
 use App\Form\Mod\Dto\ModFormDto;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 use App\Service\SteamApiClient\Helper\SteamHelper;
 use App\Service\SteamApiClient\SteamApiClientInterface;
-use Ramsey\Uuid\Uuid;
 
 class ModFormDtoDataTransformer
 {
     public function __construct(
-        private SteamApiClientInterface $steamApiClient
+        private SteamApiClientInterface $steamApiClient,
+        private IdentifierFactoryInterface $identifierFactory
     ) {
     }
 
@@ -36,7 +37,7 @@ public function transformToEntity(ModFormDto $modFormDto, AbstractMod $mod = nul
 
             if (!$mod instanceof SteamWorkshopMod) {
                 return new SteamWorkshopMod(
-                    Uuid::uuid4(),
+                    $this->identifierFactory->create(),
                     $name,
                     $modFormDto->getDescription(),
                     $status,
@@ -57,7 +58,7 @@ public function transformToEntity(ModFormDto $modFormDto, AbstractMod $mod = nul
         if (ModSourceEnum::DIRECTORY === $source) {
             if (!$mod instanceof DirectoryMod) {
                 return new DirectoryMod(
-                    Uuid::uuid4(),
+                    $this->identifierFactory->create(),
                     $modFormDto->getName(),
                     $modFormDto->getDescription(),
                     $status,
diff --git a/src/Form/ModGroup/DataTransformer/ModGroupFormDtoDataTransformer.php b/src/Form/ModGroup/DataTransformer/ModGroupFormDtoDataTransformer.php
index 2b668c2c..3f5f9069 100644
--- a/src/Form/ModGroup/DataTransformer/ModGroupFormDtoDataTransformer.php
+++ b/src/Form/ModGroup/DataTransformer/ModGroupFormDtoDataTransformer.php
@@ -6,15 +6,20 @@
 
 use App\Entity\ModGroup\ModGroup;
 use App\Form\ModGroup\Dto\ModGroupFormDto;
-use Ramsey\Uuid\Uuid;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 
 class ModGroupFormDtoDataTransformer
 {
+    public function __construct(
+        private IdentifierFactoryInterface $identifierFactory
+    ) {
+    }
+
     public function transformToEntity(ModGroupFormDto $modGroupFormDto, ModGroup $modGroup = null): ModGroup
     {
         if (!$modGroup instanceof ModGroup) {
             return new ModGroup(
-                Uuid::uuid4(),
+                $this->identifierFactory->create(),
                 $modGroupFormDto->getName(),
                 $modGroupFormDto->getDescription(),
                 $modGroupFormDto->getMods()
diff --git a/src/Form/ModList/DataTransformer/ModListFormDtoDataTransformer.php b/src/Form/ModList/DataTransformer/ModListFormDtoDataTransformer.php
index 20821a0f..758a29a6 100644
--- a/src/Form/ModList/DataTransformer/ModListFormDtoDataTransformer.php
+++ b/src/Form/ModList/DataTransformer/ModListFormDtoDataTransformer.php
@@ -8,13 +8,14 @@
 use App\Entity\Permissions\AbstractPermissions;
 use App\Entity\User\User;
 use App\Form\ModList\Dto\ModListFormDto;
-use Ramsey\Uuid\Uuid;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 use Symfony\Bundle\SecurityBundle\Security;
 
 class ModListFormDtoDataTransformer
 {
     public function __construct(
-        private Security $security
+        private Security $security,
+        private IdentifierFactoryInterface $identifierFactory
     ) {
     }
 
@@ -32,7 +33,7 @@ public function transformToEntity(ModListFormDto $modListFormDto, ModList $modLi
 
         if (!$modList instanceof ModList) {
             return new ModList(
-                Uuid::uuid4(),
+                $this->identifierFactory->create(),
                 $modListFormDto->getName(),
                 $modListFormDto->getDescription(),
                 $modListFormDto->getMods(),
diff --git a/src/Form/UserGroup/DataTransformer/UserGroupFormDtoDataTransformer.php b/src/Form/UserGroup/DataTransformer/UserGroupFormDtoDataTransformer.php
index 5d9a4bcd..e6ca01a6 100644
--- a/src/Form/UserGroup/DataTransformer/UserGroupFormDtoDataTransformer.php
+++ b/src/Form/UserGroup/DataTransformer/UserGroupFormDtoDataTransformer.php
@@ -4,17 +4,23 @@
 
 namespace App\Form\UserGroup\DataTransformer;
 
+use App\Entity\Permissions\UserGroupPermissions;
 use App\Entity\UserGroup\UserGroup;
 use App\Form\UserGroup\Dto\UserGroupFormDto;
-use Ramsey\Uuid\Uuid;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 
 class UserGroupFormDtoDataTransformer
 {
+    public function __construct(
+        private IdentifierFactoryInterface $identifierFactory
+    ) {
+    }
+
     public function transformToEntity(UserGroupFormDto $userGroupFormDto, UserGroup $userGroup = null): UserGroup
     {
         if (!$userGroup instanceof UserGroup) {
             return new UserGroup(
-                Uuid::uuid4(),
+                $this->identifierFactory->create(),
                 $userGroupFormDto->getName(),
                 $userGroupFormDto->getDescription(),
                 $userGroupFormDto->getPermissions(),
@@ -35,6 +41,9 @@ public function transformToEntity(UserGroupFormDto $userGroupFormDto, UserGroup
     public function transformFromEntity(UserGroupFormDto $userGroupFormDto, UserGroup $userGroup = null): UserGroupFormDto
     {
         if (!$userGroup instanceof UserGroup) {
+            $permissions = new UserGroupPermissions($this->identifierFactory->create());
+            $userGroupFormDto->setPermissions($permissions);
+
             return $userGroupFormDto;
         }
 
diff --git a/src/Form/UserGroup/Dto/UserGroupFormDto.php b/src/Form/UserGroup/Dto/UserGroupFormDto.php
index 5f6e83cd..4b4b0ee6 100644
--- a/src/Form/UserGroup/Dto/UserGroupFormDto.php
+++ b/src/Form/UserGroup/Dto/UserGroupFormDto.php
@@ -9,7 +9,6 @@
 use App\Validator\UserGroup\UniqueUserGroupName;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
-use Ramsey\Uuid\Uuid;
 use Ramsey\Uuid\UuidInterface;
 use Symfony\Component\Validator\Constraints as Assert;
 
@@ -32,7 +31,6 @@ class UserGroupFormDto
     public function __construct()
     {
         $this->users = new ArrayCollection();
-        $this->permissions = new UserGroupPermissions(Uuid::uuid4());
     }
 
     public function getId(): ?UuidInterface
diff --git a/src/Security/Authenticator/DiscordAuthenticator.php b/src/Security/Authenticator/DiscordAuthenticator.php
index 418556f1..84cac7f0 100644
--- a/src/Security/Authenticator/DiscordAuthenticator.php
+++ b/src/Security/Authenticator/DiscordAuthenticator.php
@@ -13,13 +13,13 @@
 use App\Security\Exception\RoleNotFoundException;
 use App\Security\Exception\UserNotADiscordMemberException;
 use App\Service\Discord\DiscordClientFactory;
+use App\Service\IdentifierFactory\IdentifierFactoryInterface;
 use Discord\Http\Endpoint;
 use Discord\Http\Exceptions\NotFoundException;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\ORM\EntityManagerInterface;
 use KnpU\OAuth2ClientBundle\Client\ClientRegistry;
 use KnpU\OAuth2ClientBundle\Security\Authenticator\OAuth2Authenticator;
-use Ramsey\Uuid\Uuid;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -52,6 +52,7 @@ public function __construct(
         private EntityManagerInterface $em,
         private RouterInterface $router,
         private DiscordClientFactory $discordClientFactory,
+        private IdentifierFactoryInterface $identifierFactory,
         private string $discordServerId,
         private string $botToken,
         private array $requiredServerRoleNames
@@ -145,9 +146,9 @@ public function authenticate(Request $request): Passport
             return new SelfValidatingPassport(new UserBadge($externalId));
         }
 
-        $permissions = new UserPermissions(Uuid::uuid4());
+        $permissions = new UserPermissions($this->identifierFactory->create());
         $user = new User(
-            Uuid::uuid4(),
+            $this->identifierFactory->create(),
             $fullUsername,
             $email,
             $externalId,
diff --git a/src/Service/IdentifierFactory/IdentifierFactory.php b/src/Service/IdentifierFactory/IdentifierFactory.php
new file mode 100644
index 00000000..b9a40a20
--- /dev/null
+++ b/src/Service/IdentifierFactory/IdentifierFactory.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\IdentifierFactory;
+
+use Ramsey\Uuid\Uuid;
+use Ramsey\Uuid\UuidInterface;
+
+class IdentifierFactory implements IdentifierFactoryInterface
+{
+    public function create(): UuidInterface
+    {
+        return Uuid::uuid4();
+    }
+}
diff --git a/src/Service/IdentifierFactory/IdentifierFactoryInterface.php b/src/Service/IdentifierFactory/IdentifierFactoryInterface.php
new file mode 100644
index 00000000..47855d2d
--- /dev/null
+++ b/src/Service/IdentifierFactory/IdentifierFactoryInterface.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\IdentifierFactory;
+
+use Ramsey\Uuid\UuidInterface;
+
+interface IdentifierFactoryInterface
+{
+    public function create(): UuidInterface;
+}
diff --git a/src/Service/IdentifierFactory/IdentifierFactoryStub.php b/src/Service/IdentifierFactory/IdentifierFactoryStub.php
new file mode 100644
index 00000000..bacfdc89
--- /dev/null
+++ b/src/Service/IdentifierFactory/IdentifierFactoryStub.php
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\IdentifierFactory;
+
+use Ramsey\Uuid\UuidInterface;
+
+class IdentifierFactoryStub implements IdentifierFactoryInterface
+{
+    /**
+     * @param UuidInterface[] $identifiers
+     */
+    private array $identifiers = [];
+
+    /**
+     * @param UuidInterface[] $identifiers
+     */
+    public function setIdentifiers(array $identifiers): void
+    {
+        foreach ($identifiers as $identifier) {
+            $this->addIdentifier($identifier);
+        }
+    }
+
+    public function create(): UuidInterface
+    {
+        if (!$this->identifiers) {
+            throw new \LogicException('No identifiers provided');
+        }
+
+        $key = array_key_first($this->identifiers);
+        $value = $this->identifiers[$key];
+        unset($this->identifiers[$key]);
+
+        return $value;
+    }
+
+    private function addIdentifier(UuidInterface $identifier): void
+    {
+        if (\in_array($identifier, $this->identifiers, true)) {
+            throw new \LogicException('Non unique identifier provided');
+        }
+
+        $this->identifiers[] = $identifier;
+    }
+}
diff --git a/tests/functional/Api/Attendance/CreateAttendanceCest.php b/tests/functional/Api/Attendance/CreateAttendanceCest.php
index 60c6ff8e..a1a52bc1 100644
--- a/tests/functional/Api/Attendance/CreateAttendanceCest.php
+++ b/tests/functional/Api/Attendance/CreateAttendanceCest.php
@@ -5,8 +5,10 @@
 namespace App\Tests\Functional\Api\Attendance;
 
 use App\Entity\Attendance\Attendance;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateAttendanceCest
 {
@@ -14,6 +16,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->haveHttpHeader('Accept', 'application/json');
         $I->haveHttpHeader('Content-Type', 'application/json');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createAttendanceWithoutApiKey(FunctionalTester $I): void
@@ -61,6 +69,7 @@ public function createAttendanceUsingApiKey(FunctionalTester $I): void
 
         /** @var Attendance $attendance */
         $attendance = $I->grabEntityFromRepository(Attendance::class, ['missionId' => 'mission_99']);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $attendance->getId()->toString());
         $I->assertSame('mission_99', $attendance->getMissionId());
         $I->assertSame(76561198048200529, $attendance->getPlayerId());
     }
diff --git a/tests/functional/Web/Dlc/CreateDlcCest.php b/tests/functional/Web/Dlc/CreateDlcCest.php
index 5759adbe..134aacec 100644
--- a/tests/functional/Web/Dlc/CreateDlcCest.php
+++ b/tests/functional/Web/Dlc/CreateDlcCest.php
@@ -7,9 +7,11 @@
 use App\DataFixtures\User\User1Fixture;
 use App\Entity\Dlc\Dlc;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Service\SteamApiClient\Helper\SteamHelper;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateDlcCest
 {
@@ -17,6 +19,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createDlcAsUnauthenticatedUser(FunctionalTester $I): void
@@ -100,6 +108,7 @@ public function createDlcAsAuthorizedUserWithNameProvidedBySteamWorkshop(Functio
 
         /** @var Dlc $dlc */
         $dlc = $I->grabEntityFromRepository(Dlc::class, ['appId' => 1681170]);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $dlc->getId()->toString());
         $I->assertSame(1681170, $dlc->getAppId());
         $I->assertSame('ws', $dlc->getDirectory());
         $I->assertSame('Arma 3 Creator DLC: Western Sahara', $dlc->getName()); // From Steam Workshop
diff --git a/tests/functional/Web/Mod/CreateDirectoryModCest.php b/tests/functional/Web/Mod/CreateDirectoryModCest.php
index e7ba4b05..858854de 100644
--- a/tests/functional/Web/Mod/CreateDirectoryModCest.php
+++ b/tests/functional/Web/Mod/CreateDirectoryModCest.php
@@ -9,8 +9,10 @@
 use App\Entity\Mod\DirectoryMod;
 use App\Entity\Mod\Enum\ModStatusEnum;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateDirectoryModCest
 {
@@ -18,6 +20,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createDirectoryModAsUnauthenticatedUser(FunctionalTester $I): void
@@ -64,6 +72,7 @@ public function createDirectoryModAsAuthorizedUser(FunctionalTester $I): void
 
         /** @var DirectoryMod $mod */
         $mod = $I->grabEntityFromRepository(DirectoryMod::class, ['directory' => '@OCAP']);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $mod->getId()->toString());
         $I->assertSame(null, $mod->getStatus());
         $I->assertSame('OCAP', $mod->getName());
         $I->assertSame('OCAP - AAR', $mod->getDescription());
diff --git a/tests/functional/Web/Mod/CreateSteamWorkshopModCest.php b/tests/functional/Web/Mod/CreateSteamWorkshopModCest.php
index 5555ccf1..9d336a77 100644
--- a/tests/functional/Web/Mod/CreateSteamWorkshopModCest.php
+++ b/tests/functional/Web/Mod/CreateSteamWorkshopModCest.php
@@ -10,9 +10,11 @@
 use App\Entity\Mod\Enum\ModTypeEnum;
 use App\Entity\Mod\SteamWorkshopMod;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Service\SteamApiClient\Helper\SteamHelper;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateSteamWorkshopModCest
 {
@@ -20,6 +22,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createSteamWorkshopModAsUnauthenticatedUser(FunctionalTester $I): void
@@ -68,6 +76,7 @@ public function createSteamWorkshopModAsAuthorizedUser(FunctionalTester $I): voi
 
         /** @var SteamWorkshopMod $mod */
         $mod = $I->grabEntityFromRepository(SteamWorkshopMod::class, ['itemId' => 1934142795]);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $mod->getId()->toString());
         $I->assertSame(ModTypeEnum::OPTIONAL, $mod->getType());
         $I->assertSame(null, $mod->getStatus());
         $I->assertSame('AF Mods', $mod->getName());
diff --git a/tests/functional/Web/ModGroup/CreateModGroupCest.php b/tests/functional/Web/ModGroup/CreateModGroupCest.php
index a8af72a1..8c4a45b0 100644
--- a/tests/functional/Web/ModGroup/CreateModGroupCest.php
+++ b/tests/functional/Web/ModGroup/CreateModGroupCest.php
@@ -10,8 +10,10 @@
 use App\Entity\Mod\AbstractMod;
 use App\Entity\ModGroup\ModGroup;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateModGroupCest
 {
@@ -19,6 +21,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createModGroupAsUnauthenticatedUser(FunctionalTester $I): void
@@ -63,6 +71,7 @@ public function createModGroupAsAuthorizedUser(FunctionalTester $I): void
 
         /** @var ModGroup $modGroup */
         $modGroup = $I->grabEntityFromRepository(ModGroup::class, ['name' => 'CUP Terrains']);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $modGroup->getId()->toString());
         $I->assertSame('CUP Terrains', $modGroup->getName());
         $I->assertSame('Terrains for CUP', $modGroup->getDescription());
         $I->assertSame([
diff --git a/tests/functional/Web/ModList/CopyModListCest.php b/tests/functional/Web/ModList/CopyModListCest.php
index 8652540f..66a97bb6 100644
--- a/tests/functional/Web/ModList/CopyModListCest.php
+++ b/tests/functional/Web/ModList/CopyModListCest.php
@@ -24,8 +24,10 @@
 use App\Entity\ModGroup\ModGroup;
 use App\Entity\ModList\ModList;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CopyModListCest
 {
@@ -33,6 +35,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function copyModListAsUnauthenticatedUser(FunctionalTester $I): void
@@ -100,6 +108,7 @@ public function copyModListAsAuthorizedUser(FunctionalTester $I): void
 
         /** @var ModList $modList */
         $modList = $I->grabEntityFromRepository(ModList::class, ['name' => 'Custom']);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $modList->getId()->toString());
         $I->assertSame('Custom', $modList->getName());
         $I->assertSame('Custom modlist', $modList->getDescription());
         $I->assertSame(User1Fixture::ID, $modList->getOwner()->getId()->toString()); // Current user
diff --git a/tests/functional/Web/ModList/CreateModListCest.php b/tests/functional/Web/ModList/CreateModListCest.php
index 95bfe8f4..312d802f 100644
--- a/tests/functional/Web/ModList/CreateModListCest.php
+++ b/tests/functional/Web/ModList/CreateModListCest.php
@@ -15,8 +15,10 @@
 use App\Entity\ModGroup\ModGroup;
 use App\Entity\ModList\ModList;
 use App\Entity\User\User;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateModListCest
 {
@@ -24,6 +26,12 @@ public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+        ]);
     }
 
     public function createModListAsUnauthenticatedUser(FunctionalTester $I): void
@@ -75,6 +83,7 @@ public function createModListAsAuthorizedUser(FunctionalTester $I): void
 
         /** @var ModList $modList */
         $modList = $I->grabEntityFromRepository(ModList::class, ['name' => 'Custom']);
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $modList->getId()->toString());
         $I->assertSame('Custom', $modList->getName());
         $I->assertSame('Custom modlist', $modList->getDescription());
         $I->assertSame(User1Fixture::ID, $modList->getOwner()->getId()->toString()); // Current user
diff --git a/tests/functional/Web/UserGroup/CreateUserGroupCest.php b/tests/functional/Web/UserGroup/CreateUserGroupCest.php
index 304d17b8..9e7202cf 100644
--- a/tests/functional/Web/UserGroup/CreateUserGroupCest.php
+++ b/tests/functional/Web/UserGroup/CreateUserGroupCest.php
@@ -9,18 +9,28 @@
 use App\DataFixtures\User\User2Fixture;
 use App\DataFixtures\User\User3Fixture;
 use App\DataFixtures\UserGroup\UsersGroupFixture;
+use App\Entity\Permissions\UserGroupPermissions;
 use App\Entity\User\User;
 use App\Entity\UserGroup\UserGroup;
+use App\Service\IdentifierFactory\IdentifierFactoryStub;
 use App\Tests\FunctionalTester;
 use Codeception\Util\HttpCode;
+use Ramsey\Uuid\Uuid;
 
 class CreateUserGroupCest
 {
     public function _before(FunctionalTester $I): void
     {
         $I->stopFollowingRedirects();
-
         $I->freezeTime('2020-01-01T00:00:00+00:00');
+
+        /** @var IdentifierFactoryStub $identifierFactory */
+        $identifierFactory = $I->grabService(IdentifierFactoryStub::class);
+        $identifierFactory->setIdentifiers([
+            Uuid::fromString('ecfb293f-ca8c-4edc-9af3-15fee1bf21ac'), // Required to initialize UserGroupPermissions
+            Uuid::fromString('805c9fcd-d674-4a27-8f0c-78dbf2484bb2'),
+            Uuid::fromString('7cb77e2f-c26e-4098-b47b-60539bf5bb70'),
+        ]);
     }
 
     public function createUserGroupAsUnauthenticatedUser(FunctionalTester $I): void
@@ -101,6 +111,7 @@ public function createUserGroupAsAuthorizedUser(FunctionalTester $I): void
 
         /** @var UserGroup $userGroup */
         $userGroup = $I->grabEntityFromRepository(UserGroup::class, ['name' => 'All']);
+        $I->assertSame('7cb77e2f-c26e-4098-b47b-60539bf5bb70', $userGroup->getId()->toString());
         $I->assertSame('All', $userGroup->getName());
         $I->assertSame('All users', $userGroup->getDescription());
         $I->assertSame([
@@ -110,6 +121,8 @@ public function createUserGroupAsAuthorizedUser(FunctionalTester $I): void
             User3Fixture::ID,
         ], array_map(fn (User $user) => $user->getId()->toString(), $userGroup->getUsers()));
 
+        $I->assertSame('805c9fcd-d674-4a27-8f0c-78dbf2484bb2', $userGroup->getPermissions()->getId()->toString());
+
         $I->assertTrue($userGroup->getPermissions()->userList);
         $I->assertTrue($userGroup->getPermissions()->userUpdate);
         $I->assertTrue($userGroup->getPermissions()->userDelete);