Subcontracting diagram

The following diagram shows the movements of the subassemblies in case operations 20 and 30 are subcontracted.

WHWarehouse
1The subassembly produced in operation 10 is completed and received in the shop floor warehouse.
2The subassembly is transferred to a warehouse for subassemblies.
3The subassembly is delivered to the subcontractor without ownership change. In the manufacturer's system, the subassembly is registered as stored in an administrative warehouse.
4The subassembly produced by the subcontractor in operation 30 is received in the warehouse at the manufacturer's location.
5The subassembly is transferred to work center WC4.
6The subassembly is issued to production and consumed in operation 40.