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# Discount

**Discount Branch**

The discount branch of the external sales posting option allows to map discounts from external sales to Maitre'D discounts.

![Button - Modify](https://documentation.payfacto.com/POS/MaitreD/Fulldoc/assets/images/MaitreDCommon/Buttons/MDButton-Modify.jpg)

Select this button to modify an existing external discount mapping.

![Button - Add](https://documentation.payfacto.com/POS/MaitreD/Fulldoc/assets/images/MaitreDCommon/Buttons/MDButton-Add.jpg)

Select this button to add a new external discount mapping.

![Button - Remove](https://documentation.payfacto.com/POS/MaitreD/Fulldoc/assets/images/MaitreDCommon/Buttons/MDButton-Remove.gif)

Select this button to remove an obsolete external discount mapping.

**External value**

Enter the code of the external discount.

**Internal value**

Enable the Maitre'D discount from the list.