Promo codes exist because of various reasons. They can be given out as a means of promotion and marketing by businesses, they can be created by the marketing team of a business to be used for free by customers, or they can be created by businesses as an incentive to gain publicity.

The history of coupons is unclear, but it appears they are not a recent invention. Coupons are said to have originated in England, where shop owners would literally give out physical coupons for people to use. These coupons were cut out of paper and were redeemable for discounts or free items. Later, as time went on and the technology improved, coupons transitioned into the digital space and became redeemable online.


Now, businesses provide coupons as a means of attracting new clients and gaining publicity by creating excitement through competition. Carrefour Promo Codes are often a limited-time offer, so they encourage customers to take immediate action and “buy now” for fear of missing out on a good deal.

Promo codes are also given out by businesses as a way of rewarding their loyal customers. For instance, if a customer were to refer a friend to the business, they would receive a referral code. When their friend uses that code to purchase anything from the business’s website, the referrer and their friend will receive a discount on their purchase. This is often an ongoing promotion and the customers who provide the most referrals typically get the biggest discounts.

Different Types of Promo Codes

There are three types of codes available, and each serves a different purpose. For instance, online purchases use “discount codes,” which allow customers to take a flat-rate discount off of their order. When customers go through checkout and enter their promo code, the website automatically calculates the discount and adjusts the price accordingly.

This is different than “coupon codes,” which can be used both online and in-store but cannot be applied to sale items.  Coupons are usually limited to one per customer and cannot be combined with other offers.

Finally, there are “promo codes,” which are usually chosen by the customer at checkout. These can’t be shared with friends, and cannot be used for other services.