Manufacturing

    Bill of Materials (BoM)

    A structured list of all raw materials, components, and assemblies required to manufacture a product.

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    Key Takeaways

    • BoMs are the foundation of manufacturing ERP: they drive MRP calculations, cost estimation, and production planning.
    • Odoo supports multi-level, phantom, and configurable BoMs, handling simple assemblies to complex product variants.
    • Accurate BoMs reduce material waste by 10-25% and improve production scheduling reliability.

    Types of Bills of Materials in Odoo

    BoM TypePurposeUse Case
    Standard BoMDefines components for manufacturingMost manufactured products
    Phantom BoM (Kit)Explodes into components without manufacturing orderProduct bundles, kits sold as one SKU
    Multi-level BoMSub-assemblies with their own BoMsComplex products with intermediate steps
    Configurable BoMDifferent components per product variantProducts with size, color, or material options

    Phantom BoMs are particularly useful for e-commerce: sell a 'starter kit' as one product, but when the order is confirmed, inventory for each individual component is reserved and picked separately.

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