Promo code is a code on a particular product that one can redeem while checking out. There are many deals on online shopping websites that offer discounts on the products. These products have promo codes on them. To avail the discounted offers one should know the promo code of the product. Promo code is used differently on every online store.
Promo codes can get a deal offering more than 50% discount. Usually they are for one time use only. It means you can not use promo code twice on buying same