Managing personal Outlook.com account settings, security, and privacy
I'M WRITING THIS IN CAPITAL LETTERS BECASUE THIS TOOK ME AGES TO WORK OUT:
IF YOU ARE GETTING THE: "WE CANNOT SEND A TEXT MESSAGE TO THIS NUMBER" TRY GOING THROUGH THE WHOLE PROCESS ON YOUR PHONES INTERNET AND DOING THE EXACT SAME THING.
I TRIED USING MY LAPTOP TO SEND THE NUMBER TO MY PHONE WHICH NEVER WORKED, AS SOON AS I WENT THROUGH THE SAME PROCESS ON MY PHONES INTERNET BROWSER, IT DID.
HOPE THIS AT LEAST HELPS ONE PERSON OUT THERE!!