Find the place to enter coupon code.If the discount is not automatically applied, shoppers will need to find the right place to enter coupon code. Merchants locate this enter coupon code box for coupon code, promo code, discount code or whatever the merchant decides to call it in different places in their check out process.Sometimes merchants locate the enter coupon code in a logical place such as the shopping cart where you can easily check if the discount is applied, but at other times it is hard to find, such as the order review page prior to confirming your purchase. Shoppers should always carefully confirm that the discount shoppers expect is properly applied.Why coupons sometimes dont work?Coupon codes may not work because the code could be expired or entered incorrectly. At other times, the Merchant may exclude certain products or may require minimum purchases. Some coupon codes are case sensitive.Sometimes the coupon website is unaware that the coupon has expired, sometimes they make human errors, and sometimes the merchants change or expire coupon codes without telling the coupon websites. In any case, remember that coupon websites are providing their services to shoppers for free, so help them out by nicely emailing them and telling them that a certain coupon code doesnt work. Sometimes the coupon website can help you find a working coupon code, but at other times, the merchant may not be offering any coupon codes on the product you are interested in purchasing.When you find a coupon code for a merchant, think of it as a bonus to save a few bucks or to splurge and spend a bit more on something else for yourself.