diff --git a/LibOneM2M/OneM2M_Functions.ttcn b/LibOneM2M/OneM2M_Functions.ttcn
index 2f687c791769fb1fa779d9a4f45119af8c938994..969827b32cb5d3bd8a4541b33862f1b54cef9648 100644
--- a/LibOneM2M/OneM2M_Functions.ttcn
+++ b/LibOneM2M/OneM2M_Functions.ttcn
@@ -2544,6 +2544,50 @@ module OneM2M_Functions {
 			}// end f_cse_retrieveResourceHandler
 			
 			/**
+			 * @desc Message exchange for the memberType validation of group members
+			 * @param p_resourceIndex Internal resource index which indicates the expected resource to be retrieved	 
+			 * @param p_requestPrimitive RETRIEVE request primitive to be used
+			 * @param p_responseStatusCode Response Status code to be returned
+			 * @verdict 
+			 */
+			function f_cse_memberTypeValidationHandler(integer p_resourceIndex, in ResponseStatusCode p_responseStatusCode := int2000) runs on CseSimu {
+		
+				var integer v_targetResourceIndex := -1;
+				var integer v_localResourceIndex := -1;
+				
+				//Activate defaults when running on a PTC
+				f_cse_activateDefaults_cse1();	
+		
+				tc_ac.start;
+				alt {
+					[] mccPortIn.receive(mw_request(mw_retrieve(?))) -> value vc_request {
+						tc_ac.stop;
+						v_targetResourceIndex := f_processRetrieveRequestPrimitive(vc_request.primitive.requestPrimitive, p_responseStatusCode);
+						if(v_targetResourceIndex == p_resourceIndex) {
+							setverdict(pass, __SCOPE__&":INFO: Resource retrieved successfuly");
+						} else {
+							setverdict(inconc, __SCOPE__&":INFO: Unexpected resource retrieval");
+						}
+						f_send(e_mcc_in_port, m_response(vc_response.primitive.responsePrimitive));
+				
+					}
+					[] mccPortIn.receive(mw_request(mw_create())) -> value vc_request {
+						tc_ac.stop;
+									
+						v_localResourceIndex := f_processCreateRequestPrimitive(vc_request.primitive.requestPrimitive, p_responseStatusCode);
+						
+						setverdict(pass, __SCOPE__&":INFO: Subgroup creation received");
+						
+						f_send(e_mcc_in_port, m_response(vc_response.primitive.responsePrimitive));
+					}
+					[] tc_ac.timeout {
+						setverdict(inconc, __SCOPE__&":INFO: No answer while retrieving resource");
+					}
+				}	
+		
+				f_checkCseSimuStatus();
+		
+			}// end f_cse_memberTypeValidationHandler
 			 * @desc Message exchange for the retrieval of a child resource refs
 			 * @param p_resourceType ResourceType of children of the resource to be retrieved
 			 * @param p_resourceIndex Resource index of the resource to be retrieved
diff --git a/LibOneM2M/OneM2M_Templates.ttcn b/LibOneM2M/OneM2M_Templates.ttcn
index e06b55280ad793f66f6d55a3af02ab0fb7f2b698..8048288b12860512cb5874f3a68ecb48bc6a108c 100644
--- a/LibOneM2M/OneM2M_Templates.ttcn
+++ b/LibOneM2M/OneM2M_Templates.ttcn
@@ -1096,7 +1096,15 @@ module OneM2M_Templates {
         		resourceType := int9,
         		primitiveContent := {group_ := m_contentCreateGroup (p_maxNrOfMembers, p_memberIds, p_accessControlPolicyIds, p_memberType, p_consistencyStrategy, p_membersAccessControlPolicyIDs, p_name)}	//TODO: p_resourceId
         	};
-        	
+     
+        	/**
+			 * @desc Reception template for CREATE Group
+			 */
+			template  RequestPrimitive mw_createGroup(template XSD.ID p_from := *, template XSD.ID p_to := ?) modifies mw_create := {
+				resourceType := int9,
+				primitiveContent := {group_ := mw_contentCreateGroupBase}
+			};  
+			  	
 			/**
 			 * @desc Reception template for CREATE GroupAnnc
 			 */
@@ -2007,6 +2015,42 @@ module OneM2M_Templates {
 			choice := omit//NP
     	};  
     	
+
+		/**
+		 * @desc Base primitiveContent for CREATE operation for Group resource
+		 * @param p_maxNrOfMembers Max number of members
+		 * @param p_memberIds Member IDs
+		 * @param p_accessControlPolicyIds ACP IDs for the Group
+		 * @param p_name Resource name
+		 */
+		template Group_optional mw_contentCreateGroupBase := {
+			resourceName := *,//O
+			resourceType := omit,//NP
+			resourceID := omit,//NP
+			parentID := omit,//NP
+			creationTime := omit,//NP
+			lastModifiedTime := omit,//NP
+			labels := *,//O
+			accessControlPolicyIDs := *,//O
+			expirationTime := *,//O
+			dynamicAuthorizationConsultationIDs := *, //O
+			announceTo := *,//O
+			announcedAttribute := *,//O
+			creator := *,//O
+			memberType := *,//O
+			currentNrOfMembers := omit,//NP
+			maxNrOfMembers := ?,//M
+			memberIDs := ?,//M
+			membersAccessControlPolicyIDs := *,//O
+			memberTypeValidated := omit,//NP
+			consistencyStrategy := *,//O
+			groupName := *,//O
+			semanticSupportIndicator := *,//O
+			notifyAggregation := *,//O
+			choice := omit//NP
+		};  
+    	
+    	
 		/**
 		 * @desc Base primitiveContent for CREATE operation for GroupAnnc resource
 		 * @param p_maxNrOfMembers Max number of members
diff --git a/OneM2M_Testcases_CSE_Release_1.ttcn b/OneM2M_Testcases_CSE_Release_1.ttcn
index 980d81d7da85137bc8a93d0764e6d6bca90d1ff7..228d70a9bfe8dc82be247d54e7efedb1ad6d5a1a 100644
--- a/OneM2M_Testcases_CSE_Release_1.ttcn
+++ b/OneM2M_Testcases_CSE_Release_1.ttcn
@@ -10599,7 +10599,7 @@ module OneM2M_Testcases_CSE_Release_1 {
                 		   
 					// Test Body
 					
-					vc_cse1.start(f_cse_retrieveResourceHandler(v_targetResourceIndex, -));
+					vc_cse1.start(f_cse_memberTypeValidationHandler(v_targetResourceIndex, int4103));
 
 					f_send(e_mca_port, m_request(v_request));
 					tc_ac.start;