diff --git a/src/Core/src/Admin/src/Entity/Admin.php b/src/Core/src/Admin/src/Entity/Admin.php
index b9badb8..d24326a 100644
--- a/src/Core/src/Admin/src/Entity/Admin.php
+++ b/src/Core/src/Admin/src/Entity/Admin.php
@@ -226,7 +226,7 @@ public function getIdentifier(): string
      *      lastName: string|null,
      *      status: non-empty-string,
      *      roles: iterable<RoleType>,
-     *      created: DateTimeImmutable,
+     *      created: DateTimeImmutable|null,
      *      updated: DateTimeImmutable|null,
      * }
      */
diff --git a/src/Core/src/Admin/src/Entity/AdminLogin.php b/src/Core/src/Admin/src/Entity/AdminLogin.php
index 870ddcf..1ced9af 100644
--- a/src/Core/src/Admin/src/Entity/AdminLogin.php
+++ b/src/Core/src/Admin/src/Entity/AdminLogin.php
@@ -296,7 +296,7 @@ public function setLoginStatus(SuccessFailureEnum $loginStatus): self
      *     clientEngine: string|null,
      *     clientVersion: string|null,
      *     loginStatus: string,
-     *     created: DateTimeImmutable,
+     *     created: DateTimeImmutable|null,
      *     updated: DateTimeImmutable|null,
      * }
      */
diff --git a/src/Core/src/App/src/Entity/EntityInterface.php b/src/Core/src/App/src/Entity/EntityInterface.php
index 3b37b86..d4091b8 100644
--- a/src/Core/src/App/src/Entity/EntityInterface.php
+++ b/src/Core/src/App/src/Entity/EntityInterface.php
@@ -13,7 +13,7 @@ public function getId(): UuidInterface;
 
     public function getCreated(): ?DateTimeImmutable;
 
-    public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): string;
+    public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): ?string;
 
     public function getUpdated(): ?DateTimeImmutable;
 
diff --git a/src/Core/src/App/src/Entity/RoleInterface.php b/src/Core/src/App/src/Entity/RoleInterface.php
index 7c2c601..e554ade 100644
--- a/src/Core/src/App/src/Entity/RoleInterface.php
+++ b/src/Core/src/App/src/Entity/RoleInterface.php
@@ -11,7 +11,7 @@
  * @phpstan-type RoleType array{
  *     id: non-empty-string,
  *     name: non-empty-string,
- *     created: DateTimeImmutable,
+ *     created: DateTimeImmutable|null,
  *     updated: DateTimeImmutable|null
  * }
  */
diff --git a/src/Core/src/App/src/Entity/TimestampsTrait.php b/src/Core/src/App/src/Entity/TimestampsTrait.php
index 0b6fa12..4485bea 100644
--- a/src/Core/src/App/src/Entity/TimestampsTrait.php
+++ b/src/Core/src/App/src/Entity/TimestampsTrait.php
@@ -10,7 +10,7 @@
 trait TimestampsTrait
 {
     #[ORM\Column(name: 'created', type: 'datetime_immutable')]
-    protected DateTimeImmutable $created;
+    protected ?DateTimeImmutable $created = null;
 
     #[ORM\Column(name: 'updated', type: 'datetime_immutable', nullable: true)]
     protected ?DateTimeImmutable $updated = null;
@@ -20,9 +20,9 @@ public function getCreated(): ?DateTimeImmutable
         return $this->created;
     }
 
-    public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): string
+    public function getCreatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): ?string
     {
-        return $this->created->format($dateFormat);
+        return $this->created?->format($dateFormat);
     }
 
     public function getUpdated(): ?DateTimeImmutable
@@ -32,11 +32,7 @@ public function getUpdated(): ?DateTimeImmutable
 
     public function getUpdatedFormatted(string $dateFormat = 'Y-m-d H:i:s'): ?string
     {
-        if ($this->updated instanceof DateTimeImmutable) {
-            return $this->updated->format($dateFormat);
-        }
-
-        return null;
+        return $this->updated?->format($dateFormat);
     }
 
     #[ORM\PrePersist]
diff --git a/src/Core/src/User/src/Entity/User.php b/src/Core/src/User/src/Entity/User.php
index 0f3ba32..604748b 100644
--- a/src/Core/src/User/src/Entity/User.php
+++ b/src/Core/src/User/src/Entity/User.php
@@ -348,7 +348,7 @@ public function hasRoles(): bool
      *     identity: non-empty-string|null,
      *     status: non-empty-string,
      *     roles: RoleType[],
-     *     created: DateTimeImmutable,
+     *     created: DateTimeImmutable|null,
      *     updated: DateTimeImmutable|null,
      * }
      */
diff --git a/src/Core/src/User/src/Entity/UserAvatar.php b/src/Core/src/User/src/Entity/UserAvatar.php
index ad37e16..f294ed5 100644
--- a/src/Core/src/User/src/Entity/UserAvatar.php
+++ b/src/Core/src/User/src/Entity/UserAvatar.php
@@ -16,7 +16,7 @@
  * @phpstan-type UserAvatarType array{
  *      id: non-empty-string,
  *      url: non-empty-string|null,
- *      created: DateTimeImmutable,
+ *      created: DateTimeImmutable|null,
  *      updated: DateTimeImmutable|null
  *  }
  */
diff --git a/src/Core/src/User/src/Entity/UserDetail.php b/src/Core/src/User/src/Entity/UserDetail.php
index a7ecfd6..f5fbdc8 100644
--- a/src/Core/src/User/src/Entity/UserDetail.php
+++ b/src/Core/src/User/src/Entity/UserDetail.php
@@ -17,7 +17,7 @@
  *      firstName: non-empty-string|null,
  *      lastName: non-empty-string|null,
  *      email: non-empty-string|null,
- *      created: DateTimeImmutable,
+ *      created: DateTimeImmutable|null,
  *      updated: DateTimeImmutable|null,
  *  }
  */
diff --git a/src/Core/src/User/src/Entity/UserResetPassword.php b/src/Core/src/User/src/Entity/UserResetPassword.php
index 9ad4507..3e8cd31 100644
--- a/src/Core/src/User/src/Entity/UserResetPassword.php
+++ b/src/Core/src/User/src/Entity/UserResetPassword.php
@@ -129,7 +129,7 @@ public function markAsCompleted(): self
      *     expires: DateTimeImmutable,
      *     hash: non-empty-string,
      *     status: 'completed'|'requested',
-     *     created: DateTimeImmutable,
+     *     created: DateTimeImmutable|null,
      *     updated: DateTimeImmutable|null
      * }
      */