We are having trouble getting people to sign up for text/SMS because it requires them to login to their account online and then change their preferences. It would be nice if we could send them like a link via email that they could click on to approve signing up for texts. Or a simple entry on our website, much like when you sign up to receive a coupon code on a retail website that you just enter your phone number and it sends you a text that you have to reply "Yes" to. The way it is setup just doesn't get much feedback when we try to get customers to sign up and we've even ran contests to get people to respond.