There are two kinds of promotion rules:
These determine whether the customer is eligible for or meets the requirements for a given promotion. For example, a customer must purchase a minimum quantity, money amount, or specific product.
These determine the benefit or outcome of an eligible purchase. Outcomes can apply to the whole order or to parts of the order only.
Note: Note: When considering running promotions for your products, keep in mind that promotions cannot be offered as an incentive for customer reviews, either explicitly or implicitly. Customer reviews for purchases made with promotions might not necessarily get the “Amazon Verified Purchase” badge. You can learn more about Amazon Verified Purchases here.