A bill of materials (BOM) is a tabular listing of the components of a
SOLIDWORKS PDM item or a SOLIDWORKS assembly, drawing, or
weldment part.
Item Explorer displays item BOMs and item named BOMs in the Bill of
Materials tab. To view other BOM types, use
SOLIDWORKS PDM
File Explorer.
When you generate items, it is possible to attach multiple configurations
of a part to the same item. This can cause the BOM structure in Item Explorer to display
differently from the BOM structure in
SOLIDWORKS PDM
File Explorer. To make the BOM structure in Item Explorer mirror the BOM
structure in SOLIDWORKS PDM
File Explorer, when you generate items, give each configuration of the part
a separate item ID.