Hi,
Looking for the best way to remove "Sync'ed with Active Directory" users from Office 365 tenant, and then re-sync.
Was sync'ed from Win 2012 R2 AD server using Azure AD Connect.
Problem is, i had existing users in the O365 tenant. All users were using @company.onmicrosoft.com username. Then after Azure AD Connect sync, it created the users with their proper @company.com username.
So my plan is to delete all the Sync'ed AD users, then change everyone's username from @company.onmicrosoft.com to @company.com (which will maintain all their existing user data, OneDrive, OneNote etc). Once everyone's using the @company.com username, i will then perform another AD sync, which will sync their existing O365 @company.com username with local AD password.