I have the same issue with using multiple coupons. I have a coupon for when customers purchase a 3-pack of wine they get a 10% discount on the wine and I have another coupon that when buying $100 in gift cards receive a $20 gift card free. The wine costs get’s applied to the gift card promotion when it is not supposed to and issues more free gift cards than what was intended. When I use the exclude category option, the other coupon will not be accepted. I want to use multiple coupon codes at once that each apply to different product categories.