How to sync messages from my iPhone 13 to my iPad and Mac?
what do I need to do to my Mac and iPad to get my text messages from my new iphone13?
[Re-Titled by Moderator]
To start with, they all have to be signed into iCloud using the same Apple ID.
Check to see if Messages in iCloud is enabled on your Mac: Messages > Preferences > iMessage tab. A tick should be in the box labelled Enable Messages in iCloud.
On an iOS device go to Settings > Messages > Text Message Forwarding - and select the devices to which you want the messages forwarded.