I want to give free access to JV's to my paid membership site and is it better to do a lifetime coupon code of 100% discount or use price group? If price_group then what is that advantage of using that and do I have to setup a new product for that? I assume it won't showup on the regular signup page for everyone to see?
You can create a negative price group eg -189318. Use a big hard to guess number so people cant guess it- amember phishing. David