SMS text not working on OS Catalina
I used Migration Assistant to move from OS High Sierra to my new MBA2020 Catalina and lost the ability to communicate with SMS contacts in Messages. I am still able to use my iOS devices, as well as the old MBP (2011), however, SMS contacts (green balloon) get a red exclamation error when attempting to send, and are also unable to receive SMS texts, although the iOS devices can.