diff --git a/application/symfony/src/Domain/RequestManagement/User/RequestedUser.php b/application/symfony/src/Domain/RequestManagement/User/RequestedUser.php
index c14ed12..c7b0247 100644
--- a/application/symfony/src/Domain/RequestManagement/User/RequestedUser.php
+++ b/application/symfony/src/Domain/RequestManagement/User/RequestedUser.php
@@ -28,13 +28,15 @@ class RequestedUser extends AbstractRequestedRightFacade implements RequestedUse
     }
 
     /**
-     * {@inheritdoc}
+     * You MUST NO use this method! Use UserSourceDirector instead!
      *
+     * @see UserSourceDirectorInterface
+     * {@inheritdoc}
      * @see \App\Attribut\RecieverAttributInterface::setReciever()
      */
     public function setReciever(SourceInterface $reciever): void
     {
-        throw new SetNotPossibleException('It\'s not possible to set the reciever!');
+        throw new SetNotPossibleException('It\'s not possible to set the reciever! Set it via '.UserSourceDirectorInterface::class.'!');
     }
 
     /**