Using the MRP area, you can plan the provision of components for individual Subcontractors separately from the usual requirements.

• You have created an MRP area for the subcontractor X in Customizing and have entered the vendor number of the subcontractor there.
• You have assigned the components to be provided to the MRP area for the subcontractor X, by creating an MRP area segment in the material master record of the components to be provided.
• You have entered the special procurement key Stock Transfer from Plant to MRP Area or the special procurement key for external procurement in the MRP area segment, if you directly procure the components to be provided using Subcontracting/Third-Party Purchase Requisitions.
• You have entered the special procurement key for subcontracting in the material master record of the assembly that the subcontractor produces.
• You have made an entry in the source list for the assembly that the subcontractor produces, by entering the subcontractor as a fixed vendor and have set the indicator to 1 for relevant to MRP in the MRP field.

Depending on the requirements situation, the system creates either Stock Transfer Reservations from the Plant to the Stock of Material Provided to the Subcontractor or it creates planned orders/purchase requisitions within the subcontracting/third-party order processing. This depends on the setting that have been made.