diff --git a/src/main/java/de/ozgcloud/admin/keycloak/GroupMapper.java b/src/main/java/de/ozgcloud/admin/keycloak/GroupMapper.java
index c71151ecd630bde09ea3ca835430031be361d34b..a18a572526e3e4da1ca1bbc66433fe17266acedc 100644
--- a/src/main/java/de/ozgcloud/admin/keycloak/GroupMapper.java
+++ b/src/main/java/de/ozgcloud/admin/keycloak/GroupMapper.java
@@ -23,15 +23,6 @@ abstract class GroupMapper {
 
 	public abstract List<Group> fromGroupRepresentations(List<GroupRepresentation> groupRepresentations);
 
-	@AfterMapping
-	protected void deleteGroupsWithoutOrganisationsEinheitId(@MappingTarget List<Group> groups) {
-		groups.removeIf(this::isMissingOrganisationsEinheitId);
-	}
-
-	protected boolean isMissingOrganisationsEinheitId(Group group) {
-		return StringUtils.isBlank(group.getOrganisationsEinheitId());
-	}
-
 	@Mapping(target = "organisationsEinheitId", source = "attributes")
 	public abstract Group fromGroupRepresentation(GroupRepresentation groupRepresentation);
 
@@ -49,6 +40,15 @@ abstract class GroupMapper {
 		return values.getFirst();
 	}
 
+	@AfterMapping
+	protected void deleteGroupsWithoutOrganisationsEinheitId(@MappingTarget List<Group> groups) {
+		groups.removeIf(this::isMissingOrganisationsEinheitId);
+	}
+
+	protected boolean isMissingOrganisationsEinheitId(Group group) {
+		return StringUtils.isBlank(group.getOrganisationsEinheitId());
+	}
+
 	@Mapping(target = "attributes", expression = "java(buildGroupAttributes(groupToAdd))")
 	public abstract GroupRepresentation toGroupRepresentation(AddGroupData groupToAdd);
 
diff --git a/src/test/java/de/ozgcloud/admin/keycloak/GroupMapperTest.java b/src/test/java/de/ozgcloud/admin/keycloak/GroupMapperTest.java
index cbe73bd7b0186d895a6ff8140940ad478bc8f851..82b47bca310517e47c6ac5b812c4abc9aef66db9 100644
--- a/src/test/java/de/ozgcloud/admin/keycloak/GroupMapperTest.java
+++ b/src/test/java/de/ozgcloud/admin/keycloak/GroupMapperTest.java
@@ -93,65 +93,6 @@ class GroupMapperTest {
 		}
 	}
 
-	@Nested
-	class TestDeleteGroupsWithoutOrganisationsEinheitId {
-
-		private final Group group = GroupTestFactory.create();
-		private final List<Group> groups = new ArrayList<>();
-
-		@BeforeEach
-		void init() {
-			groups.add(group);
-		}
-
-		@Test
-		void shouldCheckIfGroupHasOrganisationsEinheitId() {
-			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
-
-			verify(mapper).isMissingOrganisationsEinheitId(group);
-		}
-
-		@Test
-		void shouldKeepGroupsWithOrganisationsEinheitId() {
-			doReturn(false).when(mapper).isMissingOrganisationsEinheitId(group);
-
-			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
-
-			assertThat(groups).containsExactly(group);
-		}
-
-		@Test
-		void shouldRemoveGroupsWithoutOrganisationsEinheitId() {
-			doReturn(true).when(mapper).isMissingOrganisationsEinheitId(group);
-
-			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
-
-			assertThat(groups).isEmpty();
-		}
-	}
-
-	@Nested
-	class TestIsMissingOrganisationsEinheitId {
-
-		@ParameterizedTest
-		@ValueSource(strings = " ")
-		@NullAndEmptySource
-		void shouldReturnTrueIfIdIsBlank(String organisationsEinheitId) {
-			var group = GroupTestFactory.createBuilder().organisationsEinheitId(organisationsEinheitId).build();
-
-			var isMissing = mapper.isMissingOrganisationsEinheitId(group);
-
-			assertThat(isMissing).isTrue();
-		}
-
-		@Test
-		void shouldReturnFalseIfIdIsSet() {
-			var isMissing = mapper.isMissingOrganisationsEinheitId(GroupTestFactory.create());
-
-			assertThat(isMissing).isFalse();
-		}
-	}
-
 	@Nested
 	class TestFromGroupRepresentation {
 
@@ -246,6 +187,65 @@ class GroupMapperTest {
 		}
 	}
 
+	@Nested
+	class TestDeleteGroupsWithoutOrganisationsEinheitId {
+
+		private final Group group = GroupTestFactory.create();
+		private final List<Group> groups = new ArrayList<>();
+
+		@BeforeEach
+		void init() {
+			groups.add(group);
+		}
+
+		@Test
+		void shouldCheckIfGroupHasOrganisationsEinheitId() {
+			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
+
+			verify(mapper).isMissingOrganisationsEinheitId(group);
+		}
+
+		@Test
+		void shouldKeepGroupsWithOrganisationsEinheitId() {
+			doReturn(false).when(mapper).isMissingOrganisationsEinheitId(group);
+
+			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
+
+			assertThat(groups).containsExactly(group);
+		}
+
+		@Test
+		void shouldRemoveGroupsWithoutOrganisationsEinheitId() {
+			doReturn(true).when(mapper).isMissingOrganisationsEinheitId(group);
+
+			mapper.deleteGroupsWithoutOrganisationsEinheitId(groups);
+
+			assertThat(groups).isEmpty();
+		}
+	}
+
+	@Nested
+	class TestIsMissingOrganisationsEinheitId {
+
+		@ParameterizedTest
+		@ValueSource(strings = " ")
+		@NullAndEmptySource
+		void shouldReturnTrueIfIdIsBlank(String organisationsEinheitId) {
+			var group = GroupTestFactory.createBuilder().organisationsEinheitId(organisationsEinheitId).build();
+
+			var isMissing = mapper.isMissingOrganisationsEinheitId(group);
+
+			assertThat(isMissing).isTrue();
+		}
+
+		@Test
+		void shouldReturnFalseIfIdIsSet() {
+			var isMissing = mapper.isMissingOrganisationsEinheitId(GroupTestFactory.create());
+
+			assertThat(isMissing).isFalse();
+		}
+	}
+
 	@Nested
 	class TestToGroupRepresentation {