This started this morning. If I use SMS/MMS from Messages on Mac, the Mac claims the message was no delivered. But if I check on my iPhone the message WAS delivered. Replies to the message only come in on my iPhone.
I have rebooted the Mac and the iPhone. Didn't help.
Mac mini, macOS 13.2
Even if you had it configured right before, some setting might have gotten unset.
Try going through these steps, each one must be followed:
iPhone and Mac both logged in to same Apple ID. Try logging off and logging on if necessary.
iPhone Settings => Messages shows iMessage as "on" (sometimes toggling this off and then on fixes some things)
iPhone Settings => Messages shows Send & Receive showing both phone number and email (Apple ID)
iPhone Settings => Messages shows Text Message Forwarding and your Mac is listed and shown as "on" there.
iPhone Settings => Messages shows Send as SMS "on" and MMS Messaging and Group Messaging both "on"
On the Mac: Messages => Preferences => iMessage tab shows same and correct Apple ID and "You can be reached for messages at" indicates both phone number and Apple ID (email), and "start new conversations from" indicates the phone number.
* Don't see the Text Message Forwarding setting on your iPhone? Go to Settings > Messages, turn off iMessage, turn it back on, tap Send & Receive, tap Use Your Apple ID for iMessage, then sign in with the same Apple ID used on your other devices.
Forward SMS/MMS text messages from your iPhone to your Mac or iPad - Apple Support
The problem cleared itself up. All of the sudden, I started to get SMS messages on my Mac.
I am unable to send SMS/MMS messages from my Mac. iMessages work just fine.
