Changing UPNs / Primary SMTP address and ODB site

Hey Raj,

This is a tricky question.

From my experience; i would still wait for expert advice from MS on this.

1.If you are just changing the primary email address; NOT actualyl deleting and recreating an account then there are the following consequences:

 i.The url after /personal/... should change to reflect the new UPN;this takes time though.

 ii.Files and folders do remain the same.

iii.I have seen issues with files not appearing on the shared with me tab; apprently this happens because the feature is dependant on search and the new UPN needs to be re-crawled. You would have to contact support if the files do not appear.

2.Coming to the point where the user account is actually deleted and recreated with the same name... at this time the ODB site would be marked for deletion, and when the user signs in with the new account and clicks on onedrive there would be a fresh site provisioned.

The site could restored using powershell but i guess to relink it to the new account which would have a new unique identifier you would have to contact support.

Hope this helps!