The Product Margin screen allows you to set a margin to be made according to the type of product. Be aware that this applies to all products, regardless of supplier.
This screen is setting a desired margin per product category. It is recommended that you can set more detail according to who your supplier is. For supplier specific discounts and margins see the Supplier Catalogues button.
Click the Product Catalogues arrow button > Product Margin, the window below will open:
Enter the margin you need to make against each product type. You can check your pricing in the Example column.
Click Update to save and close the window. Any newly saved margins will be applied to products you add on to a new quote.