Forum Discussion
Cleaning up the #AzureAD and Microsoft account overlap
Good or bad, the process has started: https://blogs.technet.microsoft.com/enterprisemobility/2016/09/15/cleaning-up-the-azure-ad-and-microsoft-account-overlap/
Same boat here, unfortunately my company started issuing Microsoft IDs for a Windows Phone Testdrive before I joined. Now I have the mess to deal with our employees :)
I'll probably have to direct all our users to delete/close their Microsoft IDs with corporate email addresses.
I think we can all agree this needs to happen, I have had instances where I have been configuring Outlook with a work email and because the address was also an MSA it was auto discovering to MicrosoftAccount\email@org.com , took a while to figure out I had to change the username to org.com\email@org.com.