According to Microsoft, a promotional code, sometimes known as coupon code or discount code, is made up of a combination of numbers and letters. It’s used for specific purposes, such as a holiday marketing campaign. What are the different types of promotional codes? There are three different types of promotional codes store owners can choose from. Public codes – Anyone can see or use a public promo code. These are useful for enticing new customers and encouraging previous shoppers to come back for more. Private codes – Stores use private codes to target a specific group of people. Commonly provided …