Bill of Materials (BOM)

A Bill of Materials (BOM) is a comprehensive list of the components, quantities, and costs required to manufacture a finished product or assembly. It serves as the master blueprint that defines a product's structure, ensuring accurate cost calculation, seamless inventory management, and efficient production planning.

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 : The internal tracking name or code for this specific BOM.
Item *: The final assembled product that this BOM will build.
Revision: The current version number to ensure the team is building with the latest specs.
Effective Start/End Date : Optional dates to set a timeframe for when this BOM is valid to use.

Component Lines when adding BOM (per row)

Item : The specific parts, raw materials, or sub-assemblies needed
Description : A short, helpful note explaining what the part is (optional).
Quantity : The precise amount of this part needed to build just one single unit of the final product.
UOM (Unit of Measure) : How the item is counted or measured (e.g., pieces, ounces, boxes).
Unit Cost : The individual price of one unit of this component.
Total Cost : Automatically calculated by multiplying the Quantity × Unit Cost.

BOM Rules (optional)

Condition : An "if/then" rule that decides when a part should be automatically added (e.g., if color = red).
Item : The specific component that gets selected automatically when the condition is met.
Description : An optional explanatory note about the rule.
Quantity : The amount needed, which can change dynamically using math formulas (e.g., 4+{count}).
UOM / Unit Cost : Same meaning as the standard components 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.).

See It in Action: Exploring a BOM

Watch a walkthrough of an existing Bill of Materials — its header details, component lines, BOM Rules, Overheads, and Notes & Files — all in context.

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.