In the R/3 System, items in a material BOM tend to be material components. You use material numbers to identify these components.
See also:
Item Categories for Material ItemsThe following data is relevant to material items:
The system checks the material master in the plant in which you are maintaining the BOM. The system does not check plant data for a group BOM.
In certain situations, you do not need to enter a material number. For example, you can create a non-stock item without entering a material number.
Possible values for the component unit of measure are therefore:
In Customizing for Production, you can define which material types for BOM items can be combined with which material types for the BOM header and BOM usage in your company by choosing Bill of Material