You exchange the material to a node of a multi-level WBS BOM if you want to carry out different changes to an assembly that is used on various levels in one of the multi-level BOMs to a WBS element.

The BOM whose header material you exchange, must be a material BOM.

The superior BOM, that means the BOM that contains the components to be exchanged, has to be a WBS BOM.

The system creates a new material master record and for the selected nodes a WBS BOM. Consequently, data is copied from the original material master record and items are copied from the original BOM.

You can select the scope of the data to be copied:

• If you only transfer the basic data for a plant, the system copies the basic data and the MRP data for the plant from the material master. You get a material master record that only contains the data that is required for a material exchange. You can enhance this material master record manually.
• If you select maximum transfer, the system also copies additional data that is available in the original material master record, such as sales and distribution and costing data. Consequently only the data for the plant or, if not available, the group data is copied.