Consider a scenario where your manufacturing process involves producing sub-assembly items before the final product. In this case, how should you manage the BOM?

First of all, you need to have BOMs for the sub-assemblies, then these BOMs should be linked to the BOM of the final finished product. In the following screenshot, you can see that the BOM for Brush Bristles (subassembly) is linked to the BOM of the Shaving Brush (final product). This is seen in the Materials table in the Bill of Materials master.