Outlook stopped working on my Android phone this morning - no errors, it just hung at login. On my PC I saw this Outlook email:
You have 10 phone partnerships out of the maximum allowed 10 partnerships. After you reach the maximum, you can't create additional partnerships until you delete existing ones from your account. To do so, sign in to Outlook Web App, click Options > Phone > Mobile Phones, and delete any unused partnerships.
I have NOT just set up a new device and have been using Outlook for Android on this phone for months.
When I eventually got into OWA (seems it only works fully on IE, not even Edge), I see most of the device slots seem to be taken up with the same device. Is my phone randomly re-adding itself as another slot for some reason?