BOM (Bill of Materials)

A Bill of Materials (BOM) is the complete list of every fabric, trim and component that goes into a style, often called the product's shopping list. It gives every team, from design to sourcing, one accurate source for what a garment is actually made of.

How it works

A complete BOM in PLM covers every detail behind a style: fabrics, trims, threads, zippers and buttons, along with size, colour, supplier and placement. Rather than living in a static spreadsheet, a BOM in PLM is dynamically linked to design and development data, so a change to a material or supplier updates everywhere it is used instead of being fixed by hand season after season. Much of the documentation this produces, including BOM generation itself, can be automated.

Why it matters for fashion and lifestyle brands

Fashion styles carry dozens of materials and trims across multiple suppliers, so BOM management quickly becomes a coordination problem, not just a data one. Because design, sourcing and production teams all work from the same BOM, creative intent and technical feasibility stay aligned rather than drifting apart between departments. Accurate BOM data also underpins costing and traceability, giving brands full visibility of every material and process across the supply chain and helping cut waste through better forecasting.

BOM and Delogue

In Delogue, the BOM is built directly into the product record rather than kept as a separate document. Materials, components and trims live in a central library and can be reused across styles, and bulk actions let a team update or replace a component across multiple styles at once. Supplier collaboration is built in too, so suppliers work from the same BOM data with every update, change and approval visible and traceable. See how BOM fits into Delogue's core features.

Key takeaways

• A BOM is the complete list of materials, trims and components that make up a style.
• Linking the BOM to design and development data keeps it updated automatically, not maintained by hand.
• In Delogue, BOM data lives in a central library, shared with suppliers and reused across styles.