# Discount structure

The Discount structure facility allows a highly configurable means of providing discount and price calculations for Items and customers based on a range of criteria. These calculations are used to generate the sell price of an item when the item is entered into a Sales quotation, Sales order or Sales invoice.

The Discount Structure system allows you to create an unlimited number of Discount Structure specifications that determine how a price should be calculated for an item based on who the item is being sold to and the categories into which that item belongs. A Discount Structure specification allows the entry of an expiry date, after which the Discount Structure calculation will not be used.