A price override is a feature of a retail management system which allows an authorised person to change the automated price of a product or service, in order to apply a discount.
Other reasons include coupon redemption and items on sale.
Alternatively, an employee can make the sale at the full price, then, after serving the customer, void the sale and enter it again, but this time with a discount which the employee pockets.
For these reasons the ability to override prices is often limited to senior employees only, or alternatively, junior employees have a limit placed on the amount they can override, typically 10%.
[4] This can be further refined by the retail management system distinguishing between the various types of transactions and setting appropriate limits and controls for each individually.