CATALINA IMESSAGE not Syncing across devices
messages on iPhone don't sync with messages on iMac Pro catalina. goes other way fine.
rebuilt OS from internet recovery
MacBook Pro 15″, macOS 10.15
messages on iPhone don't sync with messages on iMac Pro catalina. goes other way fine.
rebuilt OS from internet recovery
MacBook Pro 15″, macOS 10.15
Hello Sorcerer2006,
Thank you for reaching out to Apple Support Communities.
These steps may help:
"Set up iPhone to get SMS messages on Mac
You can set up your iPhone so that you can receive and send SMS messages (short text messages) and MMS messages (text messages with graphics, audio, video, and other media) on your Mac. After you set up your iPhone, when you receive an SMS message, it appears on both your iPhone and your Mac. When you send a message to someone who uses a phone other than an iPhone, your message is sent as an SMS message.

Important: To receive and send SMS and MMS messages on your Mac, your iPhone must have iOS 8.1 or later, and your iPhone and Mac must be signed in to iMessage using the same Apple ID. See the Apple Support article Use Continuity to connect your Mac, iPhone, iPad, and Apple Watch.
More details can be found here: Set up iPhone to get SMS messages on Mac
If you are still having issues, can you provide a few more details? Are you having issues with SMS, iMessage, or both? When did you first notice this? Also, which iOS version do you have on your iPhone?
Cheers!
appears that rebuilding the OS from scratch...online...fixed the issue. this was not just an SMS issue for everything Messages. So rebuilding the OS required alot of rebuild but it worked. Thank you
CATALINA IMESSAGE not Syncing across devices