The compliance message–which is a requirement imposed by the telephone carriers–helps you stay on the right side of the law. As a result, this may not be removed or edited.
The good news is that this free best practice compliance message is a separate standalone text.
We are currently the only SMS marketing company that offers this. Other companies either don’t send out an automatic compliance message at all, or they include it within your welcome text, which means you get a lot less than 160 characters to welcome new subscribers.