Hi everyone
I too have this issue. For many years I've had a paid-for 365 personal account with all my content in (mail, OneDrive for files, etc). But my issue started coincidentally after I activated the 'sandbox' feature within some Azure online courses within Microsoft
Learn. To interact with a sandbox Azure environment, I think it took my personal account details which I'm using for Microsoft Learn and registered me in Azure AD as a work account.
Now, I can no longer sign in to an Outlook.com account on Apple devices [Settings > Accounts] - in order to use native iOS apps with my Microsoft account - like Contacts (meaning that the Contacts in my Microsoft account cannot be seen by the Phone app on
my iPhone). With Contacts, E-Mail, and Calendar now all inaccessible through native iOS apps, it's left me with the tough choice of switching eco-systems fully - either switching all content from Microsoft into Apple or other way round.
I'm not sure which vendor has the limitation - whether iOS apps need to cater for prompting multiple accounts associated with one Microsoft address, like in @DavidCuttler screenshot
above.
But what would be a massive improvement that is within Microsoft's control is to provide more information as to the source of the "Work or school account". Simply saying "Created by your IT department" is not helpful - particularly for those that are unaware
of who created a Microsoft business service using the personal address; or where it could have been multiple sources (e.g. work; as well as a 'night-school'; as well as something else). Instead of saying "Created by your IT department", perhaps the message
needs to provide an owner account name or e-mail address to identify with, such as "Created by *** Email address is removed for privacy ***" or similar. At least it would provide a point of contact to talk to, if having the two accounts associated with the
one address really is causing difficulty, like what I describe.
Unfortunately in my scenario, I'm not 100% certain that the Microsoft Learn 'sandbox' feature has been the cause (without the improvement I describe), and I can't find any option to 'unregister' myself from the 'sandbox' feature; so I'm stuck with this annoying
flaw.
Regards,