Peter's idea would be great or adding a new Price List Line Type of “Price List”, allowing one price list to reference another (similar to how Production BOMs can reference other BOMs). Base logic would still work properly where the system finds the "best price".We maintain a base price list assigned to 'All Customers' as a catch-all, then apply multiple discount layers based on the volume of business with each customer. While the current combination of base price list, customer price group, and item discount group covers most scenarios, it falls short for some of our larger customers.