Promo code or coupons are promotional codes which are used to generate revenue and increase in the number of customers for a company. They are often a mix of numerical letters and alphabets, a unique array of characters. Current label promo codes are used to woo in new customers and to hold on to the old ones. They are beneficial for both, customers and the company. Customers get to save some cash and buy their favorite products at minimum prices, while the company generates revenue. Keep a look at the promo codes being offered and save big. It is a very simple method to follow. Some codes can also be used more than one time. Use them to get amazing discounts. There are several different types of promo codes. Get familiar with these terms to get the most advantage. Three types of promo codes include public codes, private codes and restricted codes. The public codes are known and unmistakable. These can be discovered and used by anyone. You can simply search or look them up on the internet. These help in bringing new customers to the company. Private and restricted promo codes are often targeted towards returning and constant customers.