A Bill of Materials (BOM) is the structured, version-controlled “recipe” for a product, listing every component, subassembly, and quantity needed across its lifecycle. Cofactr’s guide explains how effective BOM management connects design, manufacturing, and service through aligned views such as Engineering BOMs (design intent), Manufacturing BOMs (production needs), and Service BOMs (maintenance). It stresses the importance of clear hierarchy, standardized part data, lifecycle status, compliance attributes, and controlled change processes (ECR/ECO/ECN) to prevent costly errors. The article highlights why spreadsheets fail at scale and why integrated PLM, ERP, and MES systems are critical for accuracy, traceability, and procurement efficiency, while also pointing to emerging trends like aut

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