MRP should be used in HL/MRP. Furthermore, the production organization should be rebuilt into simple, product-oriented cells, and then the POLCA system. 6 Quantity discounts should be negotiated, as production materials are ordered in large quantities. By motivating transporters to implement QRM, this will result in smaller deliveries and lower costs, better quality and shorter lead times.7 Customers should be encouraged to purchase larger quantities of products through the implementation of quantity discounts and bonuses. Educate the customer in the field of QRM and negotiate times compatible with smaller deliveries at reasonable prices