I think you are referring to the SMS message that can be automatically sent when declining a phone call. If so, go into your dialer, open settings (the three three vertical ellipses) and choose "Quick Responses." You will be brought to a menu where you can edit your choices.
I hope this helps, but if you were looking for a different autoreply feel free to post again or sign up using the link in my signature.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.