Once a Group Role is managed by a sync, members cannot be added to that role manually. You can still manually add people to the group, just not with that role. That's because if you're manually adding a person to a synced group, then it means the person doesn't meet the criteria of your data view. The sync would remove that person from the group the next time it runs, undoing your manual work. That's why each sync is specific to a role, so you can have some roles that are synced and others that are managed manually. For the same reason, you can't manually remove synced group members. If you did, they would just be put back in the group by the sync the next time it runs. If you need to remove a synced group member, consider updating the data view to account for that person's scenario. If you want to stop syncing a group, you can remove the sync from that group’s settings, and it will keep the members. At that point, members of the group would need to be managed manually. You’ll also notice ti ti-switch-3 icons in the group's member list, to notify you that the member is being automatically synced. The ti ti-switch-3 icon is also displayed in the upper-right corner of the list. If you hover your cursor over the icon, Rock will display the roles being used to sync the members of the group. From there, you can manually sync the group rather than waiting for the Group Sync job.