During an ongoing Office 365 deployment, we identified an issue with Office 365 customers not being able to change a user’s UPN if both UPN’s are in federated domains. We have identified and validated a work-around, please see the guidance below. Thanks...

With Office 365’s imminent release, I have moved out of services after 11 years to be part of the Office Product team’s Deployment Solution’s Group.  Our group focuses on ensuring that our partners and customers understand all the intricacies of...