I have a small work about woocommerce 1) User cannot complete the checkout unless a valid Coupon is entered 2) Once valid Coupon is entered, they complete the checkout as usual, the download link for the PDF is on the confirmation email to them (this is as it is now) 3) Coupons must only be used on E-Download category and any products within that category only, other products work as usual with no coupons required coupon is to be checked at checkout only, not when adding the product the client wants to sell subscriptions to the products offline of a particular category, giving them a coupon that can be used x number of times. these are the three modifications that need to be done budget 20-25$ only contact if you can work today, and finish it as well, dont' contact if you want to do it tomorrow or if you are busy, i dont' want both to waste time.