Configuring Discounts for Parent Menu Items in a Menu Item Class
Select the Enterprise, property, or zone, click Configuration, and then click Menu Item Classes.
Double-click a menu item class record.
Click the Options tab.
To allow both parent and condiment items to receive the discount, select 55 - Discounts Apply to Priced Condiments (parent items only). Deselect option 55 to have only the parent item receive the discount.