Right now, the product doesn't allow for the use of the Ortto UTM tracking on the CTA link while also using the "Reply STOP" opt-out language. I would like to run a test where I test the same CTA in two different SMS while testing the URL opt-out vs the Reply STOP opt-out to see if there's a difference in click throughs to the CTA link when we don't have another link (the opt-out) competing against it.