Microsoft on-premises server product that runs Office Online.
Still not working.
The first step is working to specify an account and tenant name but the 'Add phone number for security' form is generating the following error.
We're unable to send the code to that number. Please provide a valid cell phone number and try again. MS-CorrelationId: 49875dca-8288-40c1-9c4a-399c54cce3d3
I've already got MFA setup on the outlook.com account with both SMS and Microsoft Authenticator. The phone number is post-paid as well. Not sure what more I can do. I'm about to lose access to multiple tenancies and vital test and demo data when by existing tenancies shift from expired to deleted.
Microsoft! Please fix this.