Duplicate mailboxes created in Office 365

[supportman]

We are getting a weird problem when setting up new Office 365 email addresses. Exchange online seems to create a duplicate email box.

 

Has anyone else seen this or knows how to fix it?

 

I've tried deleting using the admin center and powershell but get an error about the duplicate.

 

[DaveJ2717uk]

Currently have an open case with microsoft regarding this same error. So far they have had no luck in either removing the duplicate or both...

[supportman]

Yep I also have an open case (#‎14670217‎), glad to hear its not just me! Edited June 5, 2019 by supportman

[DaveJ2717uk]

Literally just put the phone down after a call with microsoft (#14480657) They had managed through their backend to remove the duplicate instances. We then went through the process of adding the email in AD and syncing, Office 365 admin single user created - problem solved...... not so much! Checked exchange admin duplicate users are back..... After running many, many powershell scripts and emailing them the transcript files again I am no further...

[supportman]

Literally just put the phone down after a call with microsoft (#14480657) They had managed through their backend to remove the duplicate instances. We then went through the process of adding the email in AD and syncing, Office 365 admin single user created - problem solved...... not so much! Checked exchange admin duplicate users are back..... After running many, many powershell scripts and emailing them the transcript files again I am no further...

Yep same here, thanks for the case number I will let them know.

 

Are new users still creating duplicates for you? I've just setup a test user today and it seems to be only a single instance at the moment so hoping it stays that way. Which points to a blip on their backend on Monday/Tuesday sometime causing this issue.

 

It doesn't help remove the mailboxes with duplicates, but at least I could get some users up and running. Not a good position to be in!

[DaveJ2717uk]

As I said, it did today during the call, which was good because the guy from microsoft saw it happen first hand, as we were screen sharing at the time..

[1TF0rward]

2nd tech support session for me. Unable to remove then via powershell to Exchange admin center. They have to do it via the "back end". They will get back to me when this is done.

[supportman]

Anyone fixed this yet? Mines been escalated with no fix yet.

[1TF0rward]

Anyone fixed this yet? Mines been escalated with no fix yet.

 

Mine has been fixed but not had confirmation from them yet. Can see they have been deleted. New mailboxes seems to work but not added the duplicated one yet until i have confirmation.

[supportman]

Mine has been fixed but not had confirmation from them yet. Can see they have been deleted. New mailboxes seems to work but not added the duplicated one yet until i have confirmation.

 

Do you have a support ID at all? Just so I can let my engineer know.

[1TF0rward]

Do you have a support ID at all? Just so I can let my engineer know.

 

Yes, #14697117.

[1TF0rward]

I have now been contacted and they have confirmed the deletion of both mailboxes from the backend. I have created the user again and works fine now!

[DaveJ2717uk]

Mines been sorted - working as it should now.