I have three coupons that provide a discount off the same product. So, for example, I have product A, and I have a google coupon, a twitter coupon and an email coupon. Each of those coupons does exactly the same thing -- i.e., they take the same dollar value off of product A.
How do I know which coupons have been used?
I'm using Shopsite 10 pro.
Thanks,
Greg