Forum Discussion

Copper Contributor

Nov 18, 2019

2 Mailboxes

Hi, I'm new to O365 / EXO. Looks like assigning an O365 licensing to an AD user created a mailbox on Exchange Online automatically. We are in the middle of migrating to EXO and at the moment ma...

2010

exchange online

VasilMichev

MVP

Nov 18, 2019

There is no "merge" functionality, if you ended up with two mailboxes you need to remove one, which in most cases would be the cloud mailbox. Either use this: https://www.michev.info/Blog/Post/2388/permanently-disable-a-mailbox-in-office-365

Or this: https://techcommunity.microsoft.com/t5/Exchange-Team-Blog/Permanently-Clear-Previous-Mailbox-Info/ba-p/607619

NodorinaMing
Copper Contributor
Nov 20, 2019
VasilMichev Michael Obernberger
Thanks for this.

Now that emails items are merged into EXO mailbox - facing a new problem.
User not able to update/edit reoccuring meetings that were book previously from the Exchange onprem mailbox.
Any recommendation resolving this issue (besides than recreate everything?)?

Thank you again