Table of Contents
Chapter 1: Understanding Odoo's Module Architecture
Odoo's modular architecture lets you install only the apps you need. Each module adds specific functionality, and modules can depend on each other. Understanding these dependencies is key to smart selection.
Core modules (Accounting, CRM, Sales, Purchase, Inventory) form the foundation for most businesses. These handle the fundamental business processes that nearly every company shares.
Specialized modules (Manufacturing, Field Service, Subscriptions, PLM) address industry-specific needs. Install these only when your business requires their specific functionality.
Chapter 2: Assessment Framework
Evaluate each module across four criteria: business need (is this a core process?), standard fit (does the module handle your requirements without heavy customization?), integration value (does adding this module improve data flow?), and user readiness (are users prepared for this change?).
Score each criterion from 1-5. Modules scoring 16+ across all criteria are strong candidates for Phase 1. Modules scoring 12-15 are Phase 2 candidates. Below 12, defer or reconsider.
Involve department leaders in the assessment. They understand the nuances of their processes better than IT. Their buy-in during selection improves adoption during implementation.
Chapter 3: Core Module Recommendations
Every business: Accounting, Contacts, and Discuss (internal communication). These three modules provide financial management, contact management, and team collaboration.
Product businesses add: Inventory, Sales, and Purchase. These handle the order-to-cash and procure-to-pay cycles that are central to product-based businesses.
Service businesses add: Project, Timesheets, and Helpdesk. These manage service delivery, time tracking, and customer support for professional services firms.
Chapter 4: Industry-Specific Module Selection
Manufacturing: add Manufacturing (MRP), Quality, Maintenance, and PLM. Barcode module for warehouse operations. Shop Floor for operator interfaces.
Retail: add Point of Sale, E-commerce, and Loyalty. Multi-location inventory management. Barcode for receiving and stocktaking.
Distribution: add Inventory (advanced), Purchase, Sales, and Barcode. B2B portal for customer self-service. Fleet management for delivery vehicles.
Chapter 5: Phased Deployment Strategy
Phase 1 (months 1-3): core financial and operational modules. Accounting, Sales, Purchase, and Inventory. This provides the operational backbone and generates early ROI.
Phase 2 (months 4-6): department-specific modules. Manufacturing, Project, HR, or Helpdesk based on organizational priorities. Phase 2 builds on the stable Phase 1 foundation.
Phase 3 (months 7-12): optimization modules. Marketing Automation, BI/Reporting, Advanced Inventory, and e-commerce. These modules optimize the processes established in earlier phases.
Chapter 6: Module Cost Analysis
Odoo Enterprise pricing is per-app per-user. Calculate total cost based on which users need which modules. Not every user needs every module; role-based access controls costs.
Hidden costs: custom development for gaps, data migration complexity increases with more modules, and training costs scale with module count. Factor these into your total cost of ownership.
ROI estimation: for each module, estimate time savings, error reduction, and revenue impact. Modules with clear, measurable ROI should be prioritized in phased deployment.
Chapter 7: Community vs Enterprise Module Decisions
Some modules are Community-only, some Enterprise-only, and some exist in both editions with different feature sets. Understanding these differences prevents costly edition switches.
Enterprise-exclusive modules include Studio, Quality, PLM, Field Service, Marketing Automation, and Barcode (advanced). If you need these, budget for Enterprise from the start.
Community alternatives: many community-developed modules replicate Enterprise features. Evaluate their quality, maintenance status, and upgrade compatibility before relying on them.