Term used within MRP and DRP systems for system-generated planned order quantities. Planned orders only exist within the computer system and serve multiple functions. One function is to notify the materials/planner or buyer to produce or order materials, which is done by converting a planned order into an purchase order, shop order, or transfer order. Another function is used by the MRP or DRP system to show demand which is used by subsequent MRP and DRP programs to generate additional planned orders. (MRP/DRP systems sometimes run several programs in a specific sequence to generate all planned orders, one program may convert forecasts or customer orders into planned orders which creates the demand the next program uses this demand to create additional planned orders).