At a school, we're in the process of implementing Office 365 for education. We have set up an ADFS server so we can utilize Single Sign-On. For the most part, it's working great. I have one issue with Office 2013 however, and I need some help.By default Office 2013 signs in (for cloud services) using the domain user's account (eg. user@domain.com).
The issue I'm having is that we used a new, shorter domain name for O365. This involved changing the UPN for all users from "@olddomain.com" to "@newdomain.com".
If it is a user's first time logging into a machine, Office is signed in as "user@newdomain.com". Thanks to SSO, the password is passed along to Word and the user can click File and open/save from OneDrive immediately.
If the user has already logged into the computer however, Office stays logged in as "user@olddomain.com". As a result,...