The superior assembly must already have been saved as order or project-specific.
Select the BOM header whose material you want to exchange.
Open the BOM header context menu with the right mouse button and select Material Exchange .
The Setting Material Data dialog box appears.
Select which data you want the system to create in the material master.
Basic data for plant
Maximum transfer
Enter a material number and a description for the new material.
If you do not enter a material number, the system assigns a material number from an internal number range.
Click ( ) .
The system carries out the material exchange.
The system
Creates a new material master record with the new material number
Copies the BOM for the previous material and saves it as an order BOM, whose header is then assigned the new material number
Replaces the previous component in the superior order BOM item with a component that has the new material number
Writes a log , in which system activities during the material exchange are documented.