# Coupon

## Definition

A **coupon** is a promotional tool businesses use to offer discounts or rebates on products or services. When a user applies a coupon to their purchase or subscription, it typically results in a reduced price or additional benefits unavailable under the standard package. This incentive mechanism rewards existing customers and can attract new ones by offering a tangible value proposition. Coupons can be applied in various forms, such as a percentage discount, a fixed amount off, or special access to premium features for a limited time.

## Examples

* **Percentage Discount**: `SUMMER20` - This coupon gives users a 20% discount on their purchase price during the summer sale.
* **Fixed Amount Off**: `SAVE10` - This code offers a $10 reduction on orders above $50.
* **Free Shipping**: `FREESHIP` - Users can enter this coupon at checkout to receive free standard shipping on their orders.
* **Buy One Get One Free (BOGO)**: `BOGODEAL` - With this promotion, customers who buy one item can get another for free, perfect for inventory clearance sales.
* **Limited Access to Premium Features**: `TRIALPREMIUM` - This unique code grants users temporary access to premium features, typically for a month, encouraging them to explore higher-tier benefits.