Coupons
Discount types
Create codes with percentage off, fixed amount off, free shipping, or buy-one-get-one (pick the paid sku and the free sku from your catalog).
Rules and scope
Set minimum purchase, for percentage deals an optional maximum discount cap, usage limit, and date validity when you use scheduling fields. Applies to either every product or a specific subset (picker grouped by digital / service / physical). Free shipping scopes to all physical or chosen physical lines only.
Where codes run
Customers enter the code on the payment page (one product or cart). Orders and CSV exports show which code applied and how much was discounted. The coupon list shows used / limit so you can retire campaigns when counts max out.