I am trying to add/remove users to groups using Gluu's SCIM api. When I add an user to a particular group it works fine. Group shows added member in the UI and user panel shows correct **memberOf** property. But when I try to remove an user from a particular group, group ui shows member is removed, but in user panel it still shows the **memberOf** property, which is wrong. I have dig down the code a bit. It seems the problem is in _oxTrust-version_3.1.0\server\src\main\java\org\gluu\oxtrust\service\scim2\Scim2GroupService.java_ **updateGroup** method. It only handles members that was posted within the Group _json_. As the member is removed from group, it won't be present in _json_. But code fails to check removed group member, and I think that's the reason behind user not being updated properly. I think if the logic is changed to find out added group member as well as removed group member, this problem will be fixed.