We are using SP 2013 On-Premises and User Profile Service (UPS) is setup to sync with our AD for more than a year. Most of the users created/deleted on AD will be added/deleted in the SharePoint UPS as expected.
However, we found some users:
- Not existing in AD anymore (deleted) for half year but his profile still exist. We can search out this user in search center.
- Some new users added in AD for half year but his profile is not created in SharePoint UPS.
The problem is the situation is not occurring to all but only SOME of AD accounts.
May I have your advice what could be the possible reason? So that I can make some test to verify it.