Example: Detached Order AssemblyThe material BOM for material A contains components B and C, which are themselves assemblies. The material BOM for material C contains components D and E and the material BOM for material C contains components F and G.
Multi-Level Material BOM
You create a sales order with the number 821 for customer "Jones". You enter material A in item 10 of sales order 821.
For the Jones Company sales order, component H is to be added to the product. You have never produced component H before, which means that you will have to design it first. Therefore you create an assembly with reference to the sales order with material H as the header material. You want to produce assembly H with materials I and J, which means that materials I and J become items in this order assembly.
Bill of Material with a Detached Order Assembly
The order assembly for material H now exists, however it is not yet integrated within the multi-level BOM for the sales order item. Material H is to be inserted as a component into the bill of material for material C. You insert material H as an item in assembly C and save this with reference to the sales order.
Bill of Material with an Integrated Order Assembly