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Odoo Bill of Materials Management: Complete Guide for Manufacturers

Discover how Odoo Bill of Materials Management helps manufacturers improve production planning, inventory accuracy, procurement efficiency and overall operational performance.
8 min read
June 25, 2026
Odoo Manufacturing

Introduction

Making things is not about finishing products. Companies need to take care of a lot of things like materials, parts, how things are made how many items are in stock and buying things. They have to do all this while making sure products get to customers on time and without spending much money. When manufacturing gets bigger using spreadsheets or separate systems to manage product details can cause delays run out of stock spend money and things do not work well.

One important thing in managing manufacturing is the Bill of Materials. A good Bill of Materials helps companies plan production by saying what parts raw materials and steps are needed to make a product. If companies do not manage the Bill of Materials well they have trouble keeping track of stock buying things at the time and making products efficiently.

This is where Odoo Bill of Materials Management helps. Odoo gives companies one place to create, manage and keep track of Bills of Materials. It also connects stock, buying, production and quality control. By putting all these business tasks in one system companies can see everything plan more effectively and work more efficiently.

In this guide we will look at how Odoo Bill of Materials Management works why it is important and how companies that make things can use it to make production better and help their business grow in the term. We will explore Odoo Bill of Materials Management to see how it can help companies, with their production operations and support long-term business growth of these companies using Odoo Bill of Materials Management.

What Is a Bill of Materials?

A Bill of Materials is a comprehensive list of all components, raw materials, assemblies, subassemblies and operations required to manufacture a finished product.

  • What materials are needed
  • How much of each material is required
  • The relationship between components
  • Production instructions
  • Manufacturing sequences

if a company manufactures office chairs the BoM may include:

  • Chair frame
  • Cushion
  • Armrests
  • Wheels
  • Screws
  • Packaging materials

The BoM ensures production teams know exactly what is needed before manufacturing begins.

Why Bill of Materials Management Is Critical for Manufacturers

Many manufacturing challenges originate from poor BoM management.

  • Missing components during production
  • Incorrect inventory levels
  • Excess inventory purchases
  • Production delays
  • Inaccurate cost calculations
  • Quality control issues
  • Procurement mistakes

Effective BoM management helps manufacturers

Improve Production Accuracy

Production teams receive clear instructions and component requirements reducing errors and rework

Optimize Inventory Planning

Manufacturers can forecast material demand more accurately and avoid stock shortages

Reduce Production Costs

Accurate material planning prevents over ordering and minimizes waste

Improve Procurement Efficiency

Purchasing teams know exactly what materials are required and when they are needed.

Support Business Growth

As product lines expand, structured BoMs simplify manufacturing operations and improve scalability.

Understanding Bill of Materials Management in Odoo

Odoo Manufacturing includes a powerful Bill of Materials management system designed to support manufacturers of all sizes.

  • Create BoMs for finished products
  • Manage component lists
  • Configure multi level product structures
  • Define manufacturing operations
  • Manage product variants
  • Plan material requirements
  • Automate manufacturing workflows
  • Track production costs

Because Odoo integrates manufacturing with inventory, purchasing, accounting and sales, changes made within a BoM automatically affect related business processes.

This integration creates a single source of truth for manufacturing operations.

Key Components of an Odoo Bill of Materials

A Bill of Materials in Odoo typically contains several important elements.

Finished Product

The item being manufactured.

  • Office Chair
  • Laptop
  • Bicycle
  • Electronic Device

Components

Raw materials or subassemblies required to create the finished product.

ComponentQuantity
Chair Frame1
Cushion1
Wheels5
Screws12

Quantity

Defines how much of each component is required.

Operations

Manufacturing steps necessary to complete production.

  • Assembly
  • Welding
  • Painting
  • Quality Inspection
  • Packaging

Work Centers

Specific production areas where operations are performed.

  • Assembly Line
  • Welding Station
  • Packaging Area

Types of Bills of Materials Supported in Odoo

BoM TypeBest ForExample
Single-Level BoMSimple productsDining Table
Multi-Level BoMComplex assembliesComputer
Kit BoMBundled productsProduct Bundle
Variant BoMProduct variationsT-Shirts by Size

Different manufacturing environments require different BoM structures.

Single Level BoM

A simple structure containing only components directly used in the finished product.

Product:

  • Dining Table

Components:

  • Wooden Top
  • Legs
  • Screws

Suitable for simple manufacturing operations.

Multi Level BoM

Complex products often contain subassemblies.

Finished Product:

  • Computer

Subassembly:

  • Motherboard

Motherboard Components:

  • Processor
  • Memory
  • Capacitors

Odoo supports unlimited levels of BoM hierarchy.

Benefits include

  • Better product organization
  • Easier maintenance
  • Improved production planning

Kit BoM

Used when products are assembled during delivery rather than manufacturing.

  • Promotional Kits
  • Service Packages
  • Product Bundles

Kit BoM help businesses manage bundled products efficiently.

Creating a Bill of Materials in Odoo

Creating a BoM in Odoo follows a structured process.

Step 1 : Create Products

  • Finished goods
  • Raw materials
  • Subassemblies

Step 2 : Access Manufacturing Module

Navigate to:

Manufacturing → Products → Bills of Materials

Step 3 : Define Product Information

  • Product Name
  • Quantity
  • Product Variant

Step 4 : Add Components

  • Component name
  • Required quantity
  • Unit of measure

Step 5 : Configure Operations

Define manufacturing steps and work centers.

Step 6 : Save and Validate

Once saved the BoM becomes available for production planning and manufacturing orders.

Managing Product Variants with Odoo BoM

Many manufacturers produce products with multiple variations.

  • Size variations
  • Color options
  • Material differences
  • Custom configurations

Odoo supports variant specific BoMs.

Product : T-Shirt

Variants:

  • Small
  • Medium
  • Large

Each size may require different material quantities.

Benefits include:

  • Simplified product management
  • Reduced duplication
  • Improved manufacturing flexibility

Multi Level BoM Management in Odoo

Complex manufacturing environments often involve multiple production stages.

Finished Product

Electric Bicycle

Subassemblies

  • Battery Pack
  • Motor Assembly
  • Frame Assembly

Each subassembly may have its own BoM.

Odoo automatically manages these relationships and ensures proper material planning throughout the production process.

Benefits

  • Better production visibility
  • Reduced planning errors
  • Improved component tracking

How Odoo Integrates BoM with Inventory Management

Inventory management plays a critical role in manufacturing success.

  • Components are automatically reserved
  • Material availability is verified
  • Reordering rules can be triggered
  • Stock movements are tracked

This integration helps manufacturers avoid:

  • Stockouts
  • Excess inventory
  • Production interruptions

It also improves inventory optimization and warehouse efficiency.

BoM Integration with Purchasing

Manufacturing cannot function without reliable procurement processes.

Odoo connects Bills of Materials directly with purchasing operations.

Benefits

Accurate Material Planning

Purchasing teams know exactly what materials are needed.

Automated Procurement

Replenishment rules can automatically create purchase orders.

Reduced Manual Work

Less dependence on spreadsheets and manual calculations.

Better Supplier Coordination

Procurement decisions are based on actual production demand.

BoM Integration with Manufacturing Orders

Manufacturing Orders rely heavily on Bills of Materials.

When an MO is created:

  • Required components are identified
  • Material consumption is calculated
  • Operations are scheduled
  • Work centers are assigned

This automation reduces planning effort and improves production efficiency.

Real Manufacturing Example

Business Problem

A furniture manufacturer produces custom office desks with multiple configurations.

The company manages product structures using spreadsheets.

Operational Challenge

  • Incorrect component usage
  • Frequent stock shortages
  • Delayed production schedules
  • Purchasing inefficiencies

Odoo BoM Implementation

  • Multi level Bills of Materials
  • Product variant configurations
  • Automated procurement rules

Business Outcome

  • Improved production planning
  • Better inventory accuracy
  • Reduced purchasing errors
  • Faster order fulfillment
  • Increased manufacturing efficiency

Benefits of Odoo Bill of Materials Management

Centralized Product Information

All product structures are stored in a single system.

Improved Production Planning

Manufacturing teams can plan operations more effectively.

Enhanced Inventory Visibility

Real time inventory information supports better decisions.

Better Cost Control

Manufacturers gain greater visibility into material consumption and production costs.

Increased Efficiency

Automation reduces manual tasks and administrative effort.

Scalability

Businesses can support growth without significantly increasing operational complexity.

Common Challenges in BoM Management

Manufacturers often encounter challenges such as:

Frequent Product Changes

Engineering updates may require BoM revisions.

Data Accuracy Issues

Incorrect quantities can create production problems.

Version Control

Managing multiple BoM versions becomes difficult without proper systems.

Cross Department Coordination

Engineering procurement production and inventory teams must remain aligned.

How Odoo Supports Modern Manufacturing Operations

Modern manufacturers require visibility across inventory, purchasing, production, quality and finance.

This unified approach eliminates data silos and improves operational transparency

Manufacturers can track products from raw material procurement through production and final delivery helping management make faster and more informed business decisions

As production complexity increases Odoo provides the flexibility needed to manage evolving product structures optimize resource utilization and maintain operational efficiency

Frequently Asked Questions

What is a Bill of Materials in Odoo?

A Bill of Materials in Odoo is something that lists all the things you need to make a product like the parts how many of them you need and what you have to do to put them together.

Does Odoo support -level Bills of Materials?

Yes Odoo does support -level Bills of Materials. This means that manufacturers can use Odoo to manage complicated products that have lots of parts and subassemblies.

Can Odoo manage versions of a product within a Bill of Materials?

Yes Odoo can do that. Businesses can make a Bill of Materials for each version of a product depending on how it is configured.

How does Odoo connect Bills of Materials with inventory?

Odoo checks if you have all the materials you need sets aside the stock you need. Updates your inventory when you are making something.

Can Bills of Materials make the system buy things?

Yes Odoo can make a list of things you need to buy and even create a purchase order when you need materials.

Is Odoo good for making custom things?

Yes Odoo is good for that. It supports making custom products. It can handle complicated manufacturing jobs.

How does Odoo make production planning better?

Odoo helps you see what is going on with your materials what work needs to be done and what is happening with your manufacturing orders, all in time.

What kinds of businesses benefit from using Odoo for BOM management?

Businesses that make things, like furniture, electronics, cars, machines, food and other products can all benefit from using Odoo to manage their Bills of Materials.

Conclusion

Good manufacturing starts with product details and dependable production plans. A handled Bill of Materials is the base for controlling stock buying materials, scheduling production and managing costs. When manufacturing gets more complicated doing things manually often causes problems that slow down growth and profit.

Odoos Bill of Materials Management gives manufacturers a place to manage product structures, materials and production processes. By linking Bills of Materials to inventory, purchasing, production orders and business operations Odoo helps companies see whats happening make mistakes use resources better and produce more efficiently.

For manufacturers who want control over their operations, better planning and growth that can be scaled using a structured Bill of Materials plan in Odoo can be a key to long-term success, in operations.

Odoo Bill of Materials Management: Complete Guide for Manufacturers
Harshiv Joshi Odoo Full Stack Developer

About the Author

I am an Odoo ERP specialist passionate about helping businesses optimize operations through technology and automation. I regularly writes about ERP implementation, business process improvement, and digital transformation strategies.
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