I have a website, which selling software. Our software is required activation, which based uniquest of new customer. I need to verify any new customers if they have unique:
First name & Last name & phone. Only if all 3 fileds are the same - should appearing error message. Generally, I know how to do it, but I can't find script in zen cart, which is responsible for it.
Help me if somebody already has the same problem. Thanks! .