Abstract: Apparatus, and a corresponding method, for creating a discount coupon in response to the purchase of a product other than the one to which the coupon applies. A record pertaining to each item purchased is examined to determine whether the item is intended to trigger the creation of a coupon. If it is, at least one associated coupon deal record is retrieved, and a coupon becomes a candidate for printing, subject to a maximum number of coupons per transaction. The apparatus also validates coupons presented for redemption, scanning a list of purchased products to determine whether any falls into the same product group specified on the coupon, and also determining whether the coupon date is valid.