diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
index ba4e732..75e0665 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/Access.java
@@ -107,7 +107,7 @@ public class Access {
 		} catch (ERNotFoundException e) {
 			return Response.status(Status.NOT_FOUND).build();
 		} catch (ERAvailableInAnotherContextException e) {
-			return Response.status(Status.CONFLICT).build();
+			return Response.status(Status.FORBIDDEN).build();
 		} catch (ResourceRegistryException e) {
 			throw e;
 		}
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ContextManager.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ContextManager.java
index 9cf0005..c4bacc2 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ContextManager.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ContextManager.java
@@ -12,6 +12,8 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
 
 import org.gcube.informationsystem.resourceregistry.ResourceInitializer;
 import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
@@ -50,12 +52,13 @@ public class ContextManager {
 	 */
 	@PUT
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String create(
+	public Response create(
 			@QueryParam(ContextPath.PARENT_CONTEXT_ID_PARAM) String parentUUID,
 			@QueryParam(ContextPath.NAME_PARAM) String name)
 			throws ContextCreationException, ResourceRegistryException {
 		logger.trace("requested to create context with name : {} ", name);
-		return contextManager.create(UUID.fromString(parentUUID), name);
+		String ret = contextManager.create(UUID.fromString(parentUUID), name);
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
 
 	/**
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ERManager.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ERManager.java
index 225a48b..6c42e25 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ERManager.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ERManager.java
@@ -10,6 +10,8 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
 
 import org.gcube.informationsystem.model.entity.Facet;
 import org.gcube.informationsystem.model.entity.Resource;
@@ -61,14 +63,15 @@ public class ERManager {
 	@Path(ERPath.FACET_PATH_PART + "/{" + TYPE_PATH_PARAM + "}")
 	@Consumes({ MediaType.TEXT_PLAIN, ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8 })
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String createFacet(@PathParam(TYPE_PATH_PARAM) String type,
+	public Response createFacet(@PathParam(TYPE_PATH_PARAM) String type,
 			String json) throws FacetAlreadyPresentException, ResourceRegistryException {
 		logger.info("requested facet creation for type {} defined by {} ",
 				type, json);
 		FacetManagement facetManagement = new FacetManagement();
 		facetManagement.setElementType(type);
 		facetManagement.setJSON(json);
-		return facetManagement.create();
+		String ret = facetManagement.create();
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
 
 	/**
@@ -132,14 +135,15 @@ public class ERManager {
 	@Path(ERPath.RESOURCE_PATH_PART + "/{" + TYPE_PATH_PARAM + "}")
 	@Consumes({ MediaType.TEXT_PLAIN, ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8 })
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String createResource(@PathParam(TYPE_PATH_PARAM) String type,
+	public Response createResource(@PathParam(TYPE_PATH_PARAM) String type,
 			String json) throws ResourceAlreadyPresentException, ResourceRegistryException {
 		logger.info("requested resource creation for type {} with json {}",
 				type, json);
 		ResourceManagement resourceManagement = new ResourceManagement();
 		resourceManagement.setElementType(type);
 		resourceManagement.setJSON(json);
-		return resourceManagement.create();
+		String ret = resourceManagement.create();
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
 
 	/**
@@ -208,7 +212,7 @@ public class ERManager {
 			+ "/{" + TARGET_ID_PATH_PARAM + "}/{" + TYPE_PATH_PARAM + "}")
 	@Consumes({ MediaType.TEXT_PLAIN, ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8 })
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String attachFacet(
+	public Response attachFacet(
 			@PathParam(SOURCE_ID_PATH_PARAM) String resourceUUID,
 			@PathParam(TARGET_ID_PATH_PARAM) String facetUUID,
 			@PathParam(TYPE_PATH_PARAM) String type, String json)
@@ -221,8 +225,9 @@ public class ERManager {
 		ConsistsOfManagement consistsOfManagement = new ConsistsOfManagement();
 		consistsOfManagement.setElementType(type);
 		consistsOfManagement.setJSON(json);
-		return consistsOfManagement.create(UUID.fromString(resourceUUID),
+		String ret = consistsOfManagement.create(UUID.fromString(resourceUUID),
 				UUID.fromString(facetUUID));
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
 
 	/**
@@ -265,7 +270,7 @@ public class ERManager {
 			+ TYPE_PATH_PARAM + "}")
 	@Consumes({ MediaType.TEXT_PLAIN, ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8 })
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String attachResource(
+	public Response attachResource(
 			@PathParam(SOURCE_ID_PATH_PARAM) String sourceResourceUUID,
 			@PathParam(TARGET_ID_PATH_PARAM) String targetResourceUUID,
 			@PathParam(TYPE_PATH_PARAM) String type, String json)
@@ -280,9 +285,10 @@ public class ERManager {
 		isRelatedToManagement.setElementType(type);
 		isRelatedToManagement.setJSON(json);
 		
-		return isRelatedToManagement.create(
+		String ret = isRelatedToManagement.create(
 				UUID.fromString(sourceResourceUUID),
 				UUID.fromString(targetResourceUUID));
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
 
 	/**
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ResourceRegistryExceptionMapper.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ResourceRegistryExceptionMapper.java
index 0e886a2..aed7258 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ResourceRegistryExceptionMapper.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/ResourceRegistryExceptionMapper.java
@@ -27,7 +27,7 @@ public class ResourceRegistryExceptionMapper implements ExceptionMapper<Resource
 		} else if(ERAlreadyPresentException.class.isAssignableFrom(exception.getClass())){
 			status = Status.CONFLICT;
 		} else if(ERAvailableInAnotherContextException.class.isAssignableFrom(exception.getClass())){
-			status = Status.CONFLICT;
+			status = Status.FORBIDDEN;
 		} else if(exception.getClass() == ResourceRegistryException.class){
 			status = Status.INTERNAL_SERVER_ERROR;
 		} 
diff --git a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/SchemaManager.java b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/SchemaManager.java
index d7550ae..592e80d 100644
--- a/src/main/java/org/gcube/informationsystem/resourceregistry/rest/SchemaManager.java
+++ b/src/main/java/org/gcube/informationsystem/resourceregistry/rest/SchemaManager.java
@@ -7,6 +7,8 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
 
 import org.gcube.informationsystem.model.AccessType;
 import org.gcube.informationsystem.resourceregistry.ResourceInitializer;
@@ -41,7 +43,7 @@ public class SchemaManager {
 	@Path("{" + TYPE_PATH_PARAM + "}")
 	@Consumes({ MediaType.TEXT_PLAIN, ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8 })
 	@Produces(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8)
-	public String create(
+	public Response create(
 			@PathParam(TYPE_PATH_PARAM) String type,
 			String json)
 			throws SchemaException, ResourceRegistryException {
@@ -76,112 +78,8 @@ public class SchemaManager {
 		}
 		
 		SchemaManagement schemaManagement = new SchemaManagementImpl();
-		return schemaManagement.create(json, accessType);
+		String ret = schemaManagement.create(json, accessType);
+		return Response.status(Status.CREATED).entity(ret).type(ResourceInitializer.APPLICATION_JSON_CHARSET_UTF_8).build();
 	}
-	
-	
-//	/**
-//	 * e.g. PUT /resource-registry/schema/embedded
-//	 * 
-//	 * BODY: {...}
-//	 * 
-//	 * @param json
-//	 * @return
-//	 * @throws SchemaException
-//	 */
-//	@PUT
-//	@Path(SchemaPath.EMBEDDED_PATH_PART)
-//	@Consumes({ MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON })
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public String registerEmbeddedTypeSchema(String json)
-//			throws SchemaException {
-//		logger.trace("Requested {} registration with schema {}", Embedded.NAME,
-//				json);
-//		SchemaManagement schemaManagement = new SchemaManagementImpl();
-//		return schemaManagement.create(json, AccessType.EMBEDDED);
-//	}
-//
-//	/**
-//	 * e.g. PUT /resource-registry/schema/facet
-//	 * 
-//	 * BODY: {...}
-//	 * 
-//	 * @param json
-//	 * @return
-//	 * @throws SchemaException
-//	 */
-//	@PUT
-//	@Path(SchemaPath.FACET_PATH_PART)
-//	@Consumes({ MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON })
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public String registerFacetSchema(String json) throws SchemaException {
-//		logger.trace("Requested {} registration with schema {}", Facet.NAME,
-//				json);
-//		SchemaManagement schemaManagement = new SchemaManagementImpl();
-//		return schemaManagement.create(json, AccessType.FACET);
-//	}
-//
-//	/**
-//	 * e.g. PUT /resource-registry/schema/resource
-//	 * 
-//	 * BODY: {...}
-//	 * 
-//	 * @param jsonSchema
-//	 * @return
-//	 * @throws SchemaException
-//	 */
-//	@PUT
-//	@Path(SchemaPath.RESOURCE_PATH_PART)
-//	@Consumes({ MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON })
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public String registerResourceSchema(String json)
-//			throws SchemaException {
-//		logger.trace("Requested {} registration with schema {}", Resource.NAME,
-//				json);
-//		SchemaManagement schemaManagement = new SchemaManagementImpl();
-//		return schemaManagement.create(json, AccessType.RESOURCE);
-//	}
-//
-//	/**
-//	 * e.g. PUT /resource-registry/schema/consistsOf
-//	 * 
-//	 * BODY: {...}
-//	 * 
-//	 * @param jsonSchema
-//	 * @return
-//	 * @throws SchemaException
-//	 */
-//	@PUT
-//	@Path(SchemaPath.CONSISTS_OF_PATH_PART)
-//	@Consumes({ MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON })
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public String registerConsistsOfSchema(String json)
-//			throws SchemaException {
-//		logger.trace("Requested {} registration with schema {} ",
-//				ConsistsOf.NAME, json);
-//		SchemaManagement schemaManagement = new SchemaManagementImpl();
-//		return schemaManagement.create(json, AccessType.CONSISTS_OF);
-//	}
-//
-//	/**
-//	 * e.g. PUT /resource-registry/schema/isRelatedTo
-//	 * 
-//	 * BODY: {...}
-//	 * 
-//	 * @param jsonSchema
-//	 * @return
-//	 * @throws SchemaException
-//	 */
-//	@PUT
-//	@Path(SchemaPath.IS_RELATED_TO_PATH_PART)
-//	@Consumes({ MediaType.TEXT_PLAIN, MediaType.APPLICATION_JSON })
-//	@Produces(MediaType.APPLICATION_JSON)
-//	public String registerIsRelatedToSchema(String json)
-//			throws SchemaException {
-//		logger.trace("Requested {} registration with schema {} ",
-//				IsRelatedTo.NAME, json);
-//		SchemaManagement schemaManagement = new SchemaManagementImpl();
-//		return schemaManagement.create(json, AccessType.IS_RELATED_TO);
-//	}
 
 }