Coupons can really be used in a wide range of promotional activities. You can give them away to new customers, or buyers of a specific product, or give them away as a prize in a contest, you are able to reward loyal customers, and more. The use of coupons depends solely on your creativity. You can have percentage off coupons (which reduce the end price the customer pays by a certain percentage) or fixed coupons (which reduce the bill for a fixed amount). Coupons are made by creating a coupon code. A coupon code is a combination of letters. It can be predefined how many times a certain coupon code may be used.