Can't send or receive SMS text messages on MacBook Pro?

I didn't think you could send SMS on a computer anyway because it isn't cellular capable.

About iMessage and SMS/MMS - Apple Support

Add or remove your phone number in Messages or FaceTime - Apple Support

You can send and receive SMS messages on your MBP if you have it connected to your iPhone. See this article for instructions:

Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch - Apple Support

Hi

what app would you be using to send SMS ? to a phone number.