Group Membership Synchronization

Hi All 

I have successfully configured a single sign-in solution that is working perfectly for our clients. I am also configured Attribute Mapping like Create New Users Upon Sign-In and Update User Attributes Upon Sign-In it works fine, but when it comes to Group Membership Synchronization I add one group(AD Test) in Azure Ad in which one user will be added and the same group added(AD Test) in appian under the group type (A Brand) when i try to access the appian With that user credential, I am successfully get the acess the appian  but no user will be added to the appian group(AD Test). Could you help with what I did wrong here?