Coupons first witnessed widespread use in the United States of America. The ideas of coupons were bought forward to help sell products. There are many different types of online coupons such as discounts, free shipping, first-time customer coupons, and free giveaways. Coupons can be used to research the price sensitivity of different groups of buyers. Coupons are issued by manufacturers of specific branded packed goods or by retailers, to be used in retail stores as a part of sales promotions programmes. A coupon will feature a specific savings amount or other special offer to persuade consumers to purchase specific goods or services or to purchase from specific retailers. Online retailers often refer to coupons as “coupon codes”, “promotional codes”, “promotion codes”, “discount codes”, “key codes”, “promo codes”, “surplus codes” “portable codes”, “shopping codes”, “voucher codes”, “reward codes” or “source codes”. Internet coupons typically provide for reduced cost or percentage discount, or some other offer to encourage consumers to purchase specific products. Coupons are often widely marketed through the internet, magazines, newspapers, mails, and mobile devices.