On Prem AD to Azure AD Sync

Tshwarelo Mashigo 20 Reputation points

Hi guys, i have recovered an On-Prem DC from backup that had AAD sync, however users who were created in the last 6 month are missing, but they do appear on the Azure AD. I have re-created the last 6 months users on the On-Prem AD, now i want to sync them to Azure without them losing their old mailboxes, how to i go about it?

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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Accepted answer
  1. Marcin Policht 13,020 Reputation points MVP

    Use soft-matching


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  1. Akhilesh 5,325 Reputation points Microsoft Vendor

    Hi @Tshwarelo MashigoThank you for posting your query on Q&A!

    To answer your question Yes, it is possible to sync on-premises AD Users with existing Azure AD Users without losing the old mailboxes.

    For more information, please follow the bellow articles


    How to Sync On-Prem AD With Existing Azure AD Users

    Hope this helps. Do let us know if you any further queries.



    If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

    1 person found this answer helpful.