In-store coupons are promotional offers distributed directly to consumers inside the store, encouraging impulse purchases. These coupons can take various forms, such as those handed out at the entrance, those offered during purchases, or those available at the checkout. Their impact on sales is significant, encouraging customers to make quick purchasing decisions. In comparison, exit coupons are less frequently used because they generally imply a later return visit to the store. To maximize the effectiveness of in-store coupons, it is recommended to consult with sales promotion experts.