Fixing iMessage
How do i add my number to be used for iMessage? It won’t let me select my number.
iPhone X, iOS 13
How do i add my number to be used for iMessage? It won’t let me select my number.
iPhone X, iOS 13
Have you added the number to your Apple ID? You need to change/add the number on your Apple ID. After the change, allow up to 24 hours for the change to sync. Before trying to make the change, sign out of Messages/FaceTime on all devices/computers.
Have you tried following the steps here: Add or remove your phone number in Messages or FaceTime - Apple Support
Fixing iMessage