Extending the Area of Validity of BOM

March 1, 2010 by mySAP
Filed under: Production Planning Module

The area of validity (plant or group) that was defined when a BOM was created, can be extended. To do this, you allocate the same bill of material to a material in different plants.

You can allocate a BOM created in a specific plant (such as 0001) to additional plants (such as 0002 and 0003) or to the entire group (blank).
You can allocate a group BOM to individual plants.

These related BOMs are identified by a common internal BOM number in the standard SAP system. This internal BOM number is displayed on all screens for plant allocations.

Before you can allocate the same BOM to a material in different plants, the following must apply:

The material whose BOM you want to allocate to an additional plant must have a material master record in the new plant. All material items in the BOM must have valid material master records in the new plant in SAP. If the BOM is only relevant to plant maintenance, you can allocate the BOM to plants where no plant data exists.
If the unit of issue is maintained in a BOM item, this unit must be the same in all plants.
If the BOM contains a non-stock item that has a cost element, the SAP system checks the account. If the cost element is for primary costs, the SAP system checks whether the G/L account exists for the company code. The SAP system uses the valuation area and the plant to which the BOM is allocated to determine the company code. Secondary costs are only maintained in cost accounting.

If you want to allocate the BOM for a material to a plant where the material already has a multiple BOM (identified by the same internal BOM number), you can only allocate one alternative from this BOM group to the material in this plant.