Forum Discussion
Cross Tenant Migration licensing
Hello,
I'm planning a native cross-tenant migration for several shared mailboxes that have archives enabled. I’m looking to confirm if it is necessary to temporarily convert these to user mailboxes in the source to ensure the archive data migrates successfully. Also, what specific licenses should I assign to the target objects specifically, do I need to provide an Exchange Online Plan 2 plus the Cross-Tenant User Data Migration add-on for each shared mailbox? If anyone has handled archived shared mailboxes recently, I’d appreciate a quick confirmation on the cleanest licensing and conversion steps.
Thank you in advance ! :)
1 Reply
Hi IT_Bee, for shared mailboxes with archives, I would not assume they can move cleanly without temporary licensing. In many migrations the safe path is to temporarily convert the shared mailbox to a user mailbox, assign the needed Exchange license so the archive is active and eligible, complete the migration, then convert it back after validation. Test one mailbox first and confirm both primary and archive data before doing the full batch.
