Changing registration popup

Hi there, hope y'all are well today. When enrolling in a course, would it be possible to change that popup that shows up when you hit the sign up button? After they put in name, email & password? Because they need to be directed to the Registration page so they can pay. Right now it just says "successfully enrolled, go to dashboard" but it should say "Almost done, put in payment info." or something like that.

Thanks!