Hello, My problem is as follows : I have an agreement with a supplier to buy, say, 20 units this year for a fixed price. During the year, I will emit some Purchase Orders until the 20 units are all actually purchased. My question is then if it is possible to have kind of master Purchase order (with the 20 units that will be purchased during the year), and then children purchase orders that will account for the different P.Os sent to the supplier until the quantity is consumed. Thanks for help