Building a Bill of Materials (BOM)

Building a Bill of Materials (BOM)

A BOM is the recipe for a finished product — the materials and quantities required to make one unit.

Creating a BOM

1. Go to Karya → BOM → + New BOM
2. Select the finished product
3. Add components: raw material, quantity per unit, and unit of measure
4. Optionally add operations (steps) and their work centers

Example

For one wooden chair:

• Kayu jati — 1.5 m
• Sekrup — 12 pcs
• Cat finishing — 0.2 L

Multi-Level BOMs

A component can itself be a sub-assembly with its own BOM (e.g. a chair frame). Karya supports nested BOMs so you can plan complex products.

Scrap & Yield

Account for waste by adding a scrap percentage per material, so material planning reflects real consumption.

Costing

Karya rolls up component costs to calculate the estimated production cost (HPP) per finished unit — useful for pricing.

Versioning

Keep multiple BOM versions when a product design changes, and mark one as active for new work orders.