transform a cloud user to a onpremise synced user

Question

I have a Microsoft 365 tenant with 70% of the users synced from my onpremise AD through entra ID connect and the rest of users are created from cloud.

I would like to tranform a user that I had created from de entre id portal to a synced user from my local AD without losing his existing access.

How can I proceed ?

Thanks in advance

Answer 1

Hello Bah Mamadou Aliou,

Thanks for your question.

You need to do a soft match. But is recommended you back up the user’s data (e.g., mailbox, OneDrive) as a precaution.

See: https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/how-to-connect-install-existing-tenant

In summary:

• If the user doesn’t exist in your on-premises AD, create a new user account.

UserPrincipalName (UPN): Must match exactly.

ProxyAddresses: Ensure the primary SMTP address matches the cloud user’s email address.

• ObjectGUID or ImmutableID: These are used to match the on-premises user with the cloud user during synchronization.

See: https://support.microsoft.com/en-us/topic/how-to-use-smtp-matching-to-match-on-premises-user-accounts-to-office-365-user-accounts-for-directory-synchronization-75673b94-e1b8-8a9e-c413-ee5a2a1a6a78

You can mark it 'Accept Answer' and 'Upvote' if this helped you

Regards,

Abiola