JSON Request: POST https://localhost:9710/gwadmin-service/domains/testDom1/postoffices/testPO1/groups/testGroup1/members id=GROUP.testDom1.testPO1.testUser1 participation=PRIMARY XML Request: POST https://localhost:9710/gwadmin-service/domains/testDom1/postoffices/testPO1/groups/testGroup1/members <member> <id>GROUP.testDom1.testPO1.testUser1</id> <forceNullOnAttrs/> <participation>PRIMARY</participation> </member> Response Status: 201 - Created