Sales promotions that provide consumers an incentive to buy a product, such as a cents-off coupons or a discount, are widely used, especially for the type of products we buy in the grocery store. For the company offering the discounts and coupons, one of the risks with such a strategy is that .it is challenging to track usage of the couponsit will not provide a believable messageretailers are typically not interested in helping out with such campaignsconsumers who typically buy other brands will switch to the promoted brandit might only appeal to already loyal customers who stockpile the product when it is on sale for later consumption