An account or service may have several discounts applied. In this case you need to establish the order in which the discounts are applied.
Discount Processing Order may be set initially via the New Discount Window when you add the discount to the Product Catalog. The Discount Processing Order window lets you set the processing order (when the discount should be processed, in relation to all other discounts) on-the-fly, rather than having to modify a discount through the catalog.
Discounts with the highest rank (with 1 being the highest) are processed before discounts with lower ranks. For Grant discounts, other criteria for determining processing order may also be considered. See Discount Sorting Rule
To open the Discount Processing Order window:
Click Discount Processing Order on the menu above the Product Catalog window.
Note
The Product Catalog window must be open, in order for this button to be displayed.
To edit an item from the list, right-click a row and select Edit. This displays the Edit window for that particular discount.
Modify the processing sequence and click Save to save the change.