Microsoft Security | Microsoft Entra | Microsoft Entra ID
A cloud-based identity and access management service for securing user authentication and resource access
account sync issue with on-prem to on clouod
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Mohammad Sarfaraz Ali
0
Reputation points
I have created account on prem and sync it with azure entra, now we have change the CN for the end user with UPN but the account is not syncing with on-prem, can anyone help me with the resolution on this at earliest please.
Microsoft Security | Microsoft Entra | Microsoft Entra ID
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VEMULA SRISAI 13,990 Reputation points Microsoft External Staff Moderator2025-10-31T01:26:42.5066667+00:00 Hello Mohammad Sarfaraz Ali ,
Thank you for reaching out.
When you change the CN or UPN for an on-premises account, Microsoft Entra Connect should still sync the user because it relies on the objectGUID as the source anchor. If the account is not syncing, it could be due to:
The OU containing the user is not in the sync scope.
The new UPN suffix is not verified in Microsoft Entra ID.
There are duplicate UPN or proxyAddresses causing conflicts.
The account was deleted and recreated, which changes the immutable ID.
Could you confirm:
Is the user still in an OU that is included in Entra Connect sync?
Is the new UPN suffix verified in Entra ID?
Did you rename or recreate the account?
Once we have these details, we can guide you through the exact steps to resolve the issue.
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