I have been migrating my users from exchange 2007 to Office 365 using the staged migration process.
Most of my users have been migrating perfectly however a few are erroring out with the message "The source email address user@mydomain.com couldn't be found in the on-premises domain."I have done some research and found a similar issue, but the solution of un-hiding the user from the global address Book has not worked as the users were not hidden.I have however sorted a few by hiding them and then re enabling them ???The email in the csv is their primary email address.There are no other different configurations for the problematic users that I am aware of as I did inherent this Exchange 2007 site.↧