Interchangeable Manufacturer Parts in MRP
Use
This function enables you to exchange manufacturer parts in material requirements planning (MRP). In MRP, the system takes account of the interchangeability of inventory-managed manufacturer parts . This ensures that part “A” is not ordered, if part “B”, which is interchangeable with “A”, is in stock.
Interchangeable parts, which can and should be jointly planned, are grouped in plant-specific MPN-MRP sets . MPN-MRP sets contain all the parts in a Form-Fit-Function (FFF) class or at least some of the interchangeable parts in an FFF class. While the common FFF class expresses the technical and functional interchangeability from the manufacturer’s point of view, the grouping into MPN-MRP sets expresses the customer’s business point of view.
Prerequisites
You have maintained the MPN-MRP sets for the interchangeable parts in an FFF class. For more information, see Creating and Changing MPN-MRP Sets .
Features
Parts Planning
The manufacturer parts in an MPN-MRP set are planned together. This means that the system takes account of the pegged requirements and the replenishment elements for all parts. The determined requirement is covered by a procurement proposal for the leading part in the MPN-MRP set. The following planning features are available:
Master Production Scheduling (MPS) and Long Term Planning
MPS and long-term production planning take account of MPN-MRP sets. For more information, see Long Term Planning and Master Production Scheduling .
Planned Independent Requirements from Forecasting
The system interprets all the planned independent requirements that result from forecasting of the different parts in an MPN-MRP set as a planned independent requirement for the leading part. Consequently, a planned independent requirement for a part can be satisfied by another part in the same MPN-MRP set.
Pegging/Order Report
The joint MRP of the interchangeable parts in an MPN-MRP set means that the different requirements for the different parts can be satisfied by the replenishment element of the leading part. The system takes this into account with both Pegged Requirements and Pegging .