Messages
Why won't my messages on my phone connect to the messages on my laptop?
MacBook Pro 13″, macOS 12.1
The support article you came here from should provide you with the steps needed to try to resolve this issue. Have you tried them all yet? If so, and they didn't help, I suggest that you contact Apple Support directly. To do so, simply select the "Get Support" link in the upper right-hand side of this forum's web page.