In the earlier planning steps, the R/3 System generates purchase requisitions (see Logistics Planning). These purchase requisitions are assigned to a specific vendor, who is determined in the source list according to the given material. The purchase requisitions are converted into orders.

For each material, you enter an order item, which contains the purchase order quantity, the price, plant and the storage location. When the goods are delivered, you enter the goods receipt with reference to the purchase order. The batch numbers are assigned by the system.