diff --git a/api/src/Repositories/UnsupportedModelException.php b/api/src/Repositories/RepositoryModelAlreadyExists.php
similarity index 52%
rename from api/src/Repositories/UnsupportedModelException.php
rename to api/src/Repositories/RepositoryModelAlreadyExists.php
index ad6f180..5bfe111 100644
--- a/api/src/Repositories/UnsupportedModelException.php
+++ b/api/src/Repositories/RepositoryModelAlreadyExists.php
@@ -4,7 +4,7 @@
 namespace TorstenHettstedt\TimekeepingApi\Repositories;
 
 
-class UnsupportedModelException extends RepositoryException
+class RepositoryModelAlreadyExists extends RepositoryException
 {
 
 }
\ No newline at end of file
diff --git a/api/src/Repositories/RepositoryWriterInterface.php b/api/src/Repositories/RepositoryWriterInterface.php
index ea37211..a895679 100644
--- a/api/src/Repositories/RepositoryWriterInterface.php
+++ b/api/src/Repositories/RepositoryWriterInterface.php
@@ -11,21 +11,21 @@ interface RepositoryWriterInterface
     /**
      * @param T $model
      *
-     * @throws UnsupportedModelException
+     * @throws RepositoryModelAlreadyExists
      */
     public function insert(mixed $model): void;
 
     /**
      * @param T $model
      *
-     * @throws UnsupportedModelException
+     * @throws RepositoryRecordNotFoundException
      */
     public function update(mixed $model): void;
 
     /**
      * @param T $model
      *
-     * @throws UnsupportedModelException
+     * @throws RepositoryRecordNotFoundException
      */
     public function delete(mixed $model): void;
 }
\ No newline at end of file