The net requirements calculation for the components to be provided in subcontracting takes into consideration that the stock of material provided to the subcontractor can only be used to cover the appropriate requirements for material provided. Therefore, the component stock (stock provided) already provided to the vendor (subcontractor) can only be used to cover the requirements for material provided to this particular subcontractor.
The system only uses the stock that has not been assigned to a subcontractor as unrestricted-use stock to cover all requirements.

In an additional planning segment for subcontracting, the system displays the stock and requirements for material provided (MRP element LB-Bed) in the MRP list and in the stock/requirements list.
A separate planning segment is created for each vendor (subcontractor) for which stocks or requirements for material provided exist.

The system displays stock and requirements for material provided per vendor for information purposes only. Actual planning occurs in the net requirements segment.
The system displays requirements for material provided for a subcontractor without existing stock provided in the subcontracting segment and displays and plans the requirements in the net requirements segment.

The system also includes subcontracting third party orders and subcontracting third party requisitions in the subcontracting segment.

In the net requirements segment, the system calculates the difference between stock already provided and requirements for material provided.

The system does not include provided material requirements that are already covered by existing stocks at the subcontractor's plant in the net requirements calculation. The system also does not display the requirements in the net requirements segment.

The system displays and plans requirements for material provided to a subcontractor that are not covered by stocks already provided in the net requirements segment. You can display the total requirement quantity and the open quantity still to be provided by accessing the Additional data for MRP element screen.