Complete Guide to Odoo Modules
Odoo modules are individual business applications within the Odoo ERP platform that each handle a specific business function such as CRM, Accounting, Inventory, or Manufacturing. With over 40 official modules and more than 40,000 community-contributed apps, Odoo offers one of the most comprehensive and modular ERP ecosystems available. Each module can be installed independently and integrates automatically with other installed modules through shared data models, enabling businesses to build a custom ERP suite tailored to their exact needs.
Why It Matters
Understanding the full scope of Odoo modules helps businesses make informed decisions about which apps to deploy, in what order, and how they work together. Many organizations underutilize their Odoo investment because they are unaware of modules that could solve existing pain points. This guide matters because it provides a comprehensive overview of the Odoo ecosystem, helping you create a deployment roadmap that maximizes value while managing implementation complexity.
Key Features
Core capabilities and components you should know about.
Sales & CRM Suite
Includes CRM for pipeline management, Sales for quotations and orders, Invoicing for billing, and Subscriptions for recurring revenue — covering the entire quote-to-cash cycle.
Finance & Accounting Suite
Full double-entry accounting with bank reconciliation, expense management, budgets, asset management, and analytical accounting for departmental and project-level cost tracking.
Inventory & Supply Chain Suite
Inventory management with multi-warehouse support, Purchase for procurement automation, and Barcode for warehouse operations, all connected to sales and manufacturing.
Manufacturing Suite
MRP for production planning, Manufacturing for work orders and BOMs, Quality for inspection management, Maintenance for equipment tracking, and PLM for product lifecycle management.
Human Resources Suite
Employees for records management, Recruitment for hiring, Payroll for salary processing, Time Off for leave management, Appraisals for performance reviews, and Fleet for vehicle management.
Website & eCommerce Suite
Website Builder for creating pages, eCommerce for online selling, Blog for content marketing, Forum for community building, and eLearning for course management — all natively integrated.
How It Works
Odoo modules work on a plug-and-play principle within the Odoo framework. You start by installing the modules you need from the Odoo Apps dashboard. When you install a module, it automatically recognizes and integrates with other installed modules — for example, installing the Purchase module adds procurement capabilities that link to Inventory and Accounting. Data flows seamlessly between modules through shared models, so a confirmed sales order in the Sales module automatically creates a delivery order in Inventory and a customer invoice in Accounting.
Key Benefits
Pay only for the modules you use, keeping costs aligned with actual business needs
Add new modules as your business grows without migrating to a different platform
All modules share a common database and user interface for a consistent experience
Community modules extend functionality for niche requirements without custom development
Integrated modules eliminate manual data transfer between separate business applications
Common Use Cases
Frequently Asked Questions
How many Odoo modules are there?
Odoo offers over 40 official modules maintained by Odoo SA, covering core business functions from accounting to manufacturing. Additionally, the Odoo Community Association (OCA) and third-party developers have created over 40,000 community modules available through the Odoo App Store for specialized and industry-specific requirements.
Can I install Odoo modules one at a time?
Yes. Odoo's modular architecture allows you to install modules individually as you need them. You can start with just CRM or just Accounting and add more modules over time. Each new module automatically integrates with your existing installed modules, so there is no need for a big-bang deployment.
What is the difference between Odoo Community and Enterprise modules?
Community edition includes core open-source modules like CRM, Sales, Inventory, and basic Accounting. Enterprise edition adds advanced features like full accounting with bank sync, Studio for no-code customization, Marketing Automation, IoT integration, mobile barcode, and professional support. Some modules are exclusive to Enterprise.
Which Odoo modules should I start with?
Start with modules that address your biggest pain points. Most businesses begin with Accounting and CRM or Sales. Add Inventory and Purchases if you manage physical products. Add Manufacturing if you produce goods. The key is to deploy a manageable set of modules first, stabilize, then expand.
Can ECOSIRE help me choose and implement Odoo modules?
Yes. ECOSIRE is an experienced Odoo implementation partner that can assess your business requirements, recommend the optimal module set, and handle the complete implementation including configuration, customization, data migration, training, and ongoing support.
Related Topics
What is Odoo? Everything You Need to Know
Odoo is an open-source enterprise resource planning platform that offers a fully integrated suite of business applications covering CRM, sales, accounting, inventory, manufacturing, HR, project management, and over 40 additional modules. Originally launched in 2005 as TinyERP, Odoo has grown into one of the most widely adopted ERP systems with over 12 million users globally. Its modular architecture allows businesses to start with a few apps and add more as needs evolve, making it both affordable and highly scalable.
What is ERP? Complete Guide
Enterprise Resource Planning (ERP) is a comprehensive software system that integrates and manages core business processes such as finance, human resources, manufacturing, supply chain, and customer relations within a single unified platform. ERP systems serve as a central hub for real-time data flow across departments, eliminating information silos and enabling better decision-making. Modern ERP solutions are available as cloud-based, on-premise, or hybrid deployments to suit organizations of every size.
ERP Implementation: Complete Step-by-Step Guide
ERP implementation is the process of selecting, configuring, deploying, and adopting an Enterprise Resource Planning system within an organization. It encompasses everything from initial needs assessment and vendor evaluation through system configuration, data migration, user training, and go-live support. ERP implementation is widely considered one of the most complex and impactful technology projects a business can undertake, requiring careful planning, cross-functional collaboration, and disciplined change management to succeed.
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