Forum Discussion
Curious_Kevin16
Mar 15, 2024Brass Contributor
How to deal with an existing mailbox in Exchange Online (due to Teams being used) before migrating
We have a scenario where Teams being used across the organization with a cloud identity. These accounts were recently consolidated with On-premises by soft matching via Entra ID Connect Sync.
The issue now is, due to Teams were used with the cloud identity before account consolidation, there's a Exchange Online Mailbox for every user. We now have to migrate on-premises mailboxes to EXO as we've deployed Exchange Hybrid.
My question is, how do we deal with this existing EXO mailbox ? what is the best practice to avoid potential issues to Teams and its data associated with the existing mailbox ?
I really appreciate your thoughts !
Thank you
- Emmanuel DreuxBrass Contributor
I don't know if it answers your question precisely, but this Exchange OnPremises to Exchange Online migration tool can migrate your on-premises mailbox to an existing mailbox in Microsoft 365.
Hope this helps.