A discount rule allows you to specify a fixed-amount or percentage-based credit to apply to a customer’s invoice and any combination of plans and/or services, and/or inventory items to which the credit applies. You can include one or more discount rules in a coupon. By default, the discount rules in a coupon will overlap. Refer to View a Discount Rule to learn how to view discount rules. To override a discount rule, see Assign a Coupon.