If you’re using an iPad, complete these steps on your iPhone first, and then return to your iPad to enable your phone number.

Once you sign in, your phone number will automatically be added to this page.

Once you sign in, your phone number will automatically be added to this page.

Once you sign in, your phone number will automatically be added to this page.

You’ll need to make sure you’ve set up your phone number on your iPhone before you can add it to Messages on your Mac.

Check the Apple ID at the top of the window—if you’re signed in with a different Apple ID than what you use on your iPhone, click Sign Out and sign in with the correct Apple ID.