The production supply area is an area on the shop floor where products are staged or withdrawn. To stage products for a production order, a warehouse must know where it has to take the products. For production orders in the SAP ERP system, the Production Supply Area (PSA) contains this information.

The PSA also contains the information about the storage location from where the material is taken during the production process. This is important for the delivery-based production integration, where this storage location can be a different storage location than the one supplying the material. It can even be connected to a different warehouse. In this way, the SAP ERP system knows what type of delivery is required.
