is there a way to know what coupon codes are being used? for example.
I have 3 different codes for 10% and I gave them to different sites
so code one is 10disc1
code two is 10disc2
code three is 10disc3
the reason i want to know this information is which site's code was used so i know people that are coming from them are buying.
and if not it would be a nice addition and is it hard to implement/would you give me a quick where to start kind of deal?