diff --git a/vorgang-manager-server/src/test/java/de/ozgcloud/vorgang/command/PersistPostfachNachrichtByCommandServiceTest.java b/vorgang-manager-server/src/test/java/de/ozgcloud/vorgang/command/PersistPostfachNachrichtByCommandServiceTest.java
index d4ab5e0f24965e7a9a78b49529f278c980a423eb..3f2d58eb5a78f847f3b2c5c57c084a442156d906 100644
--- a/vorgang-manager-server/src/test/java/de/ozgcloud/vorgang/command/PersistPostfachNachrichtByCommandServiceTest.java
+++ b/vorgang-manager-server/src/test/java/de/ozgcloud/vorgang/command/PersistPostfachNachrichtByCommandServiceTest.java
@@ -188,9 +188,10 @@ class PersistPostfachNachrichtByCommandServiceTest {
 
 		@Test
 		void shouldThrowException() {
-			assertThatThrownBy(() -> service.findAnswers(serviceKontoType, PostfachAddressTestFactory.STRING_BASED_IDENTIFIER_POSTFACH_ID_VALUE,
-					GrpcPostfachMailTestFactory.REFERENCED_NACHRICHT_ID))
-					.isInstanceOf(UnsupportedOperationException.class);
+			assertThatThrownBy(
+					() -> service.findAnswers(serviceKontoType, PostfachAddressTestFactory.IDENTIFIER.toString(),
+							GrpcPostfachMailTestFactory.REFERENCED_NACHRICHT_ID))
+									.isInstanceOf(UnsupportedOperationException.class);
 		}
 	}
 }