In SAP S/4HANA, sub-items in a BOM (transaction CS01/CS02) are detailed breakdowns of a component (e.
g., for variable-size items or complex assemblies), accessed via the Sub-Item tab. The maintainable data includes:
* Quantity(A): The sub-item quantity (field: Sub-Item Quantity) specifies the amount of the sub- component required per unit of the parent item (e.g., 2 meters of a pipe). This ensures accurate material planning and consumption in production orders.
* Installation point(C): The installation point (field: Installation Point) indicates where the sub-item is installed within the assembly (e.g., a specific position in a machine). This is critical for technical documentation and assembly instructions.
Status(B) applies to the BOM header or main item (e.g., Active/Inactive), not sub-items, which inherit the parent's status.Scrap percentage(D) is maintained at the main item level (Item Data, Scrap field) or in the material master, not at the sub-item level, as sub-items detail usage, not waste. This is per SAP's BOM sub- item structure.