diff --git a/src/main/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurer.java b/src/main/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurer.java
new file mode 100644
index 0000000000000000000000000000000000000000..97507d2e32b0f4c835e2d408c94e24967f0c0569
--- /dev/null
+++ b/src/main/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurer.java
@@ -0,0 +1,16 @@
+package de.ozgcloud.admin;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
+import org.springframework.data.rest.webmvc.config.RepositoryRestConfigurer;
+import org.springframework.hateoas.server.core.DefaultLinkRelationProvider;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+
+@Configuration
+public class AdministrationRepositoryRestConfigurer implements RepositoryRestConfigurer {
+
+	@Override
+	public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config, CorsRegistry cors) {
+		config.setLinkRelationProvider(new DefaultLinkRelationProvider());
+	}
+}
diff --git a/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheit.java b/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheit.java
index 57ce3de7c54bf7de359ffa789b51ddc573b1811d..65da662c0a8c2fe60685a1ccec6c7b669f4362c1 100644
--- a/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheit.java
+++ b/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheit.java
@@ -5,13 +5,13 @@ import java.util.List;
 import org.springframework.data.annotation.Id;
 import org.springframework.data.annotation.TypeAlias;
 import org.springframework.data.mongodb.core.mapping.Document;
-import org.springframework.hateoas.server.core.Relation;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
 
 import lombok.Builder;
 import lombok.Getter;
 import lombok.extern.jackson.Jacksonized;
 
-@Relation(collectionRelation = "organisationsEinheitList")
 @Getter
 @Builder(toBuilder = true)
 @Jacksonized
@@ -21,13 +21,16 @@ public class OrganisationsEinheit {
 
 	static final String COLLECTION_NAME = "organisationsEinheit";
 
+	@JsonIgnore
 	@Id
 	private String id;
 	private String name;
 	private String anschrift;
 	private String organisationsEinheitId;
 	private String uebergeordneteOrganisationseinheitId;
-	private List<String> untergeordneteOrganisationseinheitId;
-	private String zufiId;
+	private List<String> untergeordneteOrganisationseinheitIds;
 	private SyncResult syncResult;
+
+	@JsonIgnore
+	private String zufiId;
 }
\ No newline at end of file
diff --git a/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitController.java b/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitController.java
index c1d8df5c9f5e370e50a3b29b6b5b746705a01fb8..54def34014fecc896e7881cdf1132394251ad885 100644
--- a/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitController.java
+++ b/src/main/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitController.java
@@ -28,6 +28,6 @@ public class OrganisationsEinheitController {
 
 	@GetMapping("/{id}")
 	public EntityModel<OrganisationsEinheit> getById(@PathVariable String id) {
-		throw new UnsupportedOperationException("Not implemented yet");
+		return assembler.toModel(organisationsEinheitService.getOrganisationsEinheitById(id));
 	}
 }
diff --git a/src/test/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurerTest.java b/src/test/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurerTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..c07cece24c0f6f57e39c49a0e5b3273f123b4ebb
--- /dev/null
+++ b/src/test/java/de/ozgcloud/admin/AdministrationRepositoryRestConfigurerTest.java
@@ -0,0 +1,37 @@
+package de.ozgcloud.admin;
+
+import static org.assertj.core.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.InjectMocks;
+import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
+import org.springframework.hateoas.server.LinkRelationProvider;
+import org.springframework.hateoas.server.core.DefaultLinkRelationProvider;
+
+class AdministrationRepositoryRestConfigurerTest {
+
+	@InjectMocks
+	private AdministrationRepositoryRestConfigurer configurer;
+
+	@Nested
+	class TestConfigureRepositoryRestConfiguration {
+
+		@Captor
+		private ArgumentCaptor<LinkRelationProvider> linkRelationProviderArgumentCaptor;
+
+		@Test
+		void shouldUseDefaultLinkRelationProvider() {
+			var configuration = mock(RepositoryRestConfiguration.class);
+
+			configurer.configureRepositoryRestConfiguration(configuration, null);
+
+			verify(configuration).setLinkRelationProvider(linkRelationProviderArgumentCaptor.capture());
+			assertThat(linkRelationProviderArgumentCaptor.getValue()).isInstanceOf(DefaultLinkRelationProvider.class);
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitControllerTest.java b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitControllerTest.java
index 0d21366aa7d9b424af8033d3ab7484f1c13a5ad2..2b05e09d7525683c5bc57b4cf5addace35a2eec9 100644
--- a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitControllerTest.java
+++ b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitControllerTest.java
@@ -84,4 +84,40 @@ class OrganisationsEinheitControllerTest {
 			return mockMvc.perform(get(OrganisationsEinheitController.PATH));
 		}
 	}
+
+	@Nested
+	class TestGetById {
+
+		private final OrganisationsEinheit organisationsEinheit = OrganisationsEinheitTestFactory.create();
+
+		@BeforeEach
+		void setUp() {
+			when(organisationsEinheitService.getOrganisationsEinheitById(OrganisationsEinheitTestFactory.ID)).thenReturn(organisationsEinheit);
+		}
+
+		@Test
+		void shouldCallService() {
+			doRequest();
+
+			verify(organisationsEinheitService).getOrganisationsEinheitById(OrganisationsEinheitTestFactory.ID);
+		}
+
+		@Test
+		void shouldCallAssembler() {
+			doRequest();
+
+			verify(assembler).toModel(organisationsEinheit);
+		}
+
+		@SneakyThrows
+		@Test
+		void shouldReturnHttpOk() {
+			doRequest().andExpect(status().isOk());
+		}
+
+		@SneakyThrows
+		private ResultActions doRequest() {
+			return mockMvc.perform(get(OrganisationsEinheitController.PATH + "/" + OrganisationsEinheitTestFactory.ID));
+		}
+	}
 }
\ No newline at end of file
diff --git a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitITCase.java b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitITCase.java
index 3939fe14168aa3811bf6497654e8cc7e4f0333e2..d0bbbf8732bc8cd88923f66a34369d28948f5c67 100644
--- a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitITCase.java
+++ b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitITCase.java
@@ -39,7 +39,7 @@ class OrganisationsEinheitITCase {
 	@MockBean
 	private OrganisationsEinheitService service;
 	@MockBean
-	private JwtDecoder decoer;
+	private JwtDecoder decoder;
 
 	@Autowired
 	private MockMvc mockMvc;
@@ -61,5 +61,51 @@ class OrganisationsEinheitITCase {
 
 			response.andDo(print()).andExpect(jsonPath("$._embedded.organisationsEinheitList").isNotEmpty());
 		}
+
+		@SneakyThrows
+		@Test
+		void shouldContainOrganisationsEinheit() {
+			mockMvc.perform(get(PATH))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].name").value(OrganisationsEinheitTestFactory.NAME))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].anschrift").value(OrganisationsEinheitTestFactory.ANSCHRIFT))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].organisationsEinheitId").value(
+							OrganisationsEinheitTestFactory.ORGANISATIONS_EINHEIT_ID))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].uebergeordneteOrganisationseinheitId").value(
+							OrganisationsEinheitTestFactory.UEBERGEORDNETE_ORGANISATIONSEINHEIT_ID))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].untergeordneteOrganisationseinheitIds[0]").value(
+							OrganisationsEinheitTestFactory.UNTERGEORDNETE_ORGANISATIONSEINHEIT_ID.getFirst()))
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].zufiId").doesNotExist())
+					.andExpect(jsonPath("$._embedded.organisationsEinheitList[0].id").doesNotExist());
+		}
+	}
+
+	@DisplayName("Get by id")
+	@WithMockUser
+	@Nested
+	class TestGetById {
+
+		@BeforeEach
+		void init() {
+			when(service.getOrganisationsEinheitById(OrganisationsEinheitTestFactory.ID)).thenReturn(OrganisationsEinheitTestFactory.create());
+		}
+
+		@SneakyThrows
+		@Test
+		void shouldReturnOrganisationsEinheit() {
+			var response = mockMvc.perform(get(PATH + "/" + OrganisationsEinheitTestFactory.ID)).andExpect(status().isOk());
+
+			response
+					.andExpect(jsonPath("$.name").value(OrganisationsEinheitTestFactory.NAME))
+					.andExpect(jsonPath("$.anschrift").value(OrganisationsEinheitTestFactory.ANSCHRIFT))
+					.andExpect(jsonPath("$.organisationsEinheitId").value(
+							OrganisationsEinheitTestFactory.ORGANISATIONS_EINHEIT_ID))
+					.andExpect(jsonPath("$.uebergeordneteOrganisationseinheitId").value(
+							OrganisationsEinheitTestFactory.UEBERGEORDNETE_ORGANISATIONSEINHEIT_ID))
+					.andExpect(jsonPath("$.untergeordneteOrganisationseinheitIds[0]").value(
+							OrganisationsEinheitTestFactory.UNTERGEORDNETE_ORGANISATIONSEINHEIT_ID.getFirst()))
+					.andExpect(jsonPath("$.zufiId").doesNotExist())
+					.andExpect(jsonPath("$.id").doesNotExist());
+		}
 	}
+
 }
\ No newline at end of file
diff --git a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitTestFactory.java b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitTestFactory.java
index a75e00d6c71d081e3b2a686d462ecbbacf416a9d..9f4f1363f8f8481746330496fb65f7d161414bb5 100644
--- a/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitTestFactory.java
+++ b/src/test/java/de/ozgcloud/admin/organisationseinheit/OrganisationsEinheitTestFactory.java
@@ -16,18 +16,18 @@ public class OrganisationsEinheitTestFactory {
 	public static final String ZUFI_ID = UUID.randomUUID().toString();
 	public static final SyncResult SYNC_RESULT = SyncResult.OK;
 
-	public static OrganisationsEinheit create(){
+	public static OrganisationsEinheit create() {
 		return createBuilder().build();
 	}
 
-	public static OrganisationsEinheit.OrganisationsEinheitBuilder createBuilder(){
+	public static OrganisationsEinheit.OrganisationsEinheitBuilder createBuilder() {
 		return OrganisationsEinheit.builder()
 				.id(ID)
 				.name(NAME)
 				.anschrift(ANSCHRIFT)
 				.organisationsEinheitId(ORGANISATIONS_EINHEIT_ID)
 				.uebergeordneteOrganisationseinheitId(UEBERGEORDNETE_ORGANISATIONSEINHEIT_ID)
-				.untergeordneteOrganisationseinheitId(UNTERGEORDNETE_ORGANISATIONSEINHEIT_ID)
+				.untergeordneteOrganisationseinheitIds(UNTERGEORDNETE_ORGANISATIONSEINHEIT_ID)
 				.zufiId(ZUFI_ID)
 				.syncResult(SYNC_RESULT);
 	}