I'm trying to setup user synchronization in aem 6.3. I have one author and 2 publish instances.
I followed this below document and set up the user synchronization between publishers. I have a self registration component. User submits the form data and I create the user and add to the group(which was already created using useradmin console) which has necessary permissions. I also activated the tunnel service to get to author(verified in author communities console).
The problem is Users are syncing with the profile. But the user group doesn't gets updated. So in the other publisher user is not part of that group. Please let me know if I'm missing anything to configure, appreciate your help.