Office 365 Domain Move

[Gongalong]

Hi folks,

 

We're trying to move Office 365 tenancies, in conjunction with a consultant.

 

During the last few days all the mailboxes have been migrated, and we're now at the point where we want to remove the domain from the old tenancy to add to the new.

 

When we try and remove the domain it gives an error that users or groups are still using it, then prompts me to go to the active users list (the specific error is: One or more user accounts are using schooldomain.sch.uk. Go to users and groups to edit users to switch to another domain. Then try again to remove schooldomain.sch.uk. Learn how to edit user accounts). I cannot use the active users list to edit multiple accounts because it says the accounts are federated, but our consultant has used powershell to change both the primary SMTP address and account to onmicrosoft.com. I have also edited all groups so they use onmicrosoft.com. I still get the error when I try to remove the domain.

 

Any ideas?

 

This is time critical as we need to get this domain moved ASAP, as it's the final step in the migration.

 

TIA

[Edu-IT]

Unfederate the domain in the old tenancy? At a guess.

 

http://dilshansaminda.wordpress.com/2012/07/14/disable-single-sign-on-convert-the-federation-domain-to-a-standard-domain-with-the-pscmdlets-and-reverse-the-domain-federated-authentication-settings-for-the-office-365-accounts/

[Gongalong]

Turned out we had to change the domain on the O365 user accounts to the built-in onmicrosoft.com. We had one account which refused to switch so we deleted it, and then after some minutes it allowed the domain removal.