Bill of Materials (BOM)

Overview

• BOMs define the structure and composition of assembled products.

• They specify the exact quantities of each component needed to produce one unit of the finished good.

• BOMs help in accurate cost calculation, inventory management, and production planning.

Where to Access

• Users can access Build of Material (BOM) via Manufacturing column (Manufacturing: BOM)

Key Attributes

Header

• Name : Internal name of this BOM.

• Item *: The finished/assembly item this BOM builds.

• Revision: revision required to stay up to date with the BOMs

• Effective Start/End Date : Optional validity window for using this BOM.

Component Lines when adding BOM (per row)

• Item : Component code or name.

• Description : Brief line description (optional).

• Quantity : Amount needed to produce one unit of the finished item.

• UOM (Unit of Measure) : Unit for the quantity.

• Unit Cost : Cost per unit of the component.

• Total Cost : Auto-calculated (Quantity × Unit Cost).

BOM Rules (optional)

• Condition : Rule to determine when a component applies.

• Item : Component chosen when the condition is met.

• Description : Optional note.

• Quantity : Supports expressions (e.g., 4+{count}).

• UOM / Unit Cost : Same meaning as above.

Use the separate BOM Rules section of the manual for rule syntax and advanced usage.

Overheads (optional)

• Overhead : Labor/fees recorded as separate lines.

• Description / Quantity / Unit Cost / Total Cost : Cost capture for non-material elements.

Notes & Files

• Internal Notes : Free-form instructions or clarifications.

• Attachments : Drag-and-drop supporting documents (specs, drawings, etc.).

Key Functions

• Create a BOM : Manufacturing → BOM → New → enter Name , choose Item , set Effective Dates (optional), toggle Default if desired. Add Component Lines (Item, Quantity, UOM, Unit Cost).

• Add Overheads : Capture labor/fees as Overheads lines for complete costing.

• Use BOM Rules (optional): Add Condition rows that include components only when rules apply; set Quantity (supports expressions).

• Maintain accuracy (recommended practice):

  • Ensure all components are correctly identified and quantities are accurate.

  • Review and update BOMs regularly when processes or component costs change.

  • Use base units of measure consistently across the BOM.

  • Include all relevant costs , including labor and overhead , for accurate product costing.

  • For complex products, consider multi-level BOMs with sub-assemblies.

Related Features

• Items

• Builds

• Routing