iMessages not showing up on my new iMac
Messages with phone number with ###-## are showing up on my iPhone 11, my Mac Book Pro (Catalina) but not my new iMac (Catalina). Any suggestions?
Check that iMessages in iCloud is turned on by going to your messages app, preferences and checking the box.
also, on your phone go to settings, messages, text message forwarding and check your Mac is turned on.
If that hasn’t worked, sign out of the iCloud account on your Mac and sign back in again.