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The Odoo modules list includes integrated business applications for CRM, sales, purchase, inventory, accounting, manufacturing, HR, payroll-related workflows, POS, projects, helpdesk, field service, website, eCommerce, marketing, documents, dashboards, approvals, and business automation.
In 2026, Indian businesses are looking for ERP systems that can start small and expand as the company grows.
A trading company may begin with CRM, Sales, Purchase, Inventory, and Accounting.
A manufacturer may need Purchase, Inventory, Manufacturing, Quality, Maintenance, Accounting, and Production reports.
A retail chain may use POS, Inventory, Purchase, Sales, Accounting, Loyalty, and branch dashboards.
A service company may require CRM, Sales, Projects, Timesheets, Helpdesk, Field Service, Invoicing, and customer portals.
This modular structure is one of Odoo’s main advantages.
Businesses do not need to implement every Odoo application at the same time. They can select the modules that solve their most important operational problems and add more applications in later phases.
However, module selection must be planned carefully.
Installing unnecessary modules can increase configuration work, training needs, subscription scope, customization effort, and support complexity. Some Odoo applications also depend on other modules, which means installing one application may activate additional technical components.
The right question is not:
How many Odoo modules are available?
The better question is:
Which Odoo modules does our business need, how should they connect, and in what order should we implement them?
This guide explains the major Odoo modules available in 2026, what each module does, who needs it, how modules work together, which modules are suitable for different industries, and how Tech4LYF Corporation helps businesses plan and implement the right Odoo ERP structure.
Odoo modules are individual applications or functional components that manage specific business activities.
Each module focuses on one area of the business.
Examples include:
The real value of Odoo comes from how these modules work together.
For example:
CRM can convert an opportunity into a quotation.
Sales can convert the quotation into a sales order.
Inventory can reserve and deliver the product.
Accounting can generate the customer invoice.
Purchase can replenish stock when required.
Management can view the full process through dashboards and reports.
Instead of moving data manually between separate software systems, Odoo modules share connected business records.
This helps create one source of business information.
The terms Odoo apps and Odoo modules are often used interchangeably, but there is a practical difference.
An Odoo app is usually a major user-facing business application.
Examples:
A module can be a major app or a smaller technical component that extends another application.
For example, installing an advanced feature may also install dependency modules required for that feature to work.
Businesses normally interact with major applications through the Apps dashboard, while developers and administrators may work with additional technical modules.
In this guide, the term Odoo modules refers mainly to the business applications companies can select for ERP implementation.
Odoo modules can be grouped into major business categories.
| Business Area | Main Odoo Modules |
|---|---|
| Finance | Accounting, Invoicing, Expenses, Payments |
| Sales | CRM, Sales, POS, Subscriptions, Rental |
| Purchase | Purchase, Vendor Management, Replenishment |
| Inventory and Supply Chain | Inventory, Barcode, Purchase, Repairs |
| Manufacturing | Manufacturing, Quality, Maintenance, PLM |
| Human Resources | Employees, Recruitment, Attendance, Time Off, Appraisals, Expenses, Payroll workflows |
| Services | Project, Timesheets, Planning, Field Service, Helpdesk |
| Website | Website, eCommerce, Blog, eLearning, Forum, Live Chat |
| Marketing | Email Marketing, SMS Marketing, Marketing Automation, Social Marketing, Events, Surveys |
| Productivity | Documents, Sign, Knowledge, Spreadsheet, Dashboards, Calendar, Appointments, Discuss |
| Customization | Studio, Automated Actions, Custom Models, Approval Rules |
| Operations | Approvals, IoT, Barcode, Mobile workflows, Integrations |
Businesses should choose modules based on process requirements rather than installing the complete list immediately.
Odoo CRM helps businesses manage leads, opportunities, sales activities, pipelines, forecasts, and follow-ups.
It is useful for:
Important CRM features may include:
A typical Odoo CRM flow is:
Lead received → Lead assigned → Follow-up scheduled → Opportunity qualified → Quotation created → Order confirmed
CRM becomes more powerful when connected with Sales, Email Marketing, Website forms, WhatsApp workflows, Projects, and Helpdesk.
A company needs CRM when:
Odoo CRM helps bring the sales process into one structured workflow.
Odoo Sales manages quotations, sales orders, products, pricing, customer agreements, delivery flow, and invoicing triggers.
Important Sales features may include:
A typical Sales flow is:
Quotation → Customer confirmation → Sales order → Delivery → Invoice → Payment
Odoo Sales works closely with:
Odoo Sales is useful when a company needs:
Odoo Purchase manages supplier quotations, purchase agreements, purchase orders, vendor pricing, replenishment, goods receipt, and vendor bills.
Important features may include:
A typical Purchase flow is:
Purchase requirement → RFQ → Vendor selection → Purchase order → Goods receipt → Vendor bill → Payment
Purchase works closely with:
Odoo Purchase is useful when:
Odoo Inventory is used for stock, warehouse, product movement, replenishment, traceability, and logistics operations.
It can support:
A typical Inventory flow is:
Purchase receipt → Quality check → Storage → Sales reservation → Picking → Delivery
Inventory integrates with:
Odoo Inventory is useful for:
It is especially valuable when the company manages multiple locations, product batches, serial numbers, or branch stock transfers.
Odoo Accounting manages financial records connected with business operations.
It may include:
Odoo Accounting can receive transactions from:
This reduces the need to re-enter operational data manually.
Odoo Accounting is useful when:
Accounting setup should be reviewed carefully with qualified finance and compliance professionals.
Odoo Invoicing focuses on customer invoices, vendor bills, payment tracking, and basic financial documents.
It may be suitable for businesses that need invoice management without implementing the complete accounting scope immediately.
Typical features include:
Invoicing works with Sales, Purchase, Projects, Timesheets, Subscriptions, and eCommerce.
Odoo Manufacturing, often referred to as Odoo MRP, manages production planning and manufacturing operations.
MRP means Material Requirements Planning.
Important Manufacturing features may include:
A typical Odoo Manufacturing flow is:
Demand received → Materials checked → Manufacturing order created → Work orders executed → Quality checked → Finished goods updated
Manufacturing connects with:
Odoo Manufacturing is useful for:
Manufacturing implementation requires careful process mapping because production workflows differ significantly between industries.
Odoo Quality helps businesses define and execute quality-control workflows.
It may include:
Quality can be triggered during:
The Quality module works closely with Inventory and Manufacturing.
It is useful for companies that need:
Odoo Maintenance helps manage equipment, preventive maintenance, corrective maintenance, and maintenance requests.
Important features may include:
Maintenance can be connected with Manufacturing so machine issues can be managed alongside production.
It is useful for:
Odoo Product Lifecycle Management helps businesses manage engineering changes and product revisions.
It may support:
PLM works with Manufacturing, Documents, Quality, and Maintenance.
It is useful for businesses where:
Odoo Barcode allows warehouse and inventory activities to be performed using barcode scanners or mobile devices.
It may support:
Barcode workflows can improve warehouse speed and reduce manual entry errors.
The module is useful for:
Odoo Employees provides a centralized employee directory and HR information base.
It may include:
The Employees module acts as a foundation for other HR applications.
Odoo Recruitment manages job openings and candidate hiring workflows.
It may include:
Recruitment can connect with Website, Email, Employees, and Documents.
Odoo Attendance helps track employee check-in and check-out.
It may support:
Attendance may be connected with biometric devices or custom mobile check-in workflows through integration.
Odoo Time Off manages leave requests, approvals, allocations, and leave balances.
It may include:
Payroll availability and functionality can depend on edition, country localization, configuration, and implementation approach.
Payroll workflows may include:
Indian payroll requirements should be validated carefully against current statutory and compliance needs.
Odoo Expenses allows employees to submit business expenses and managers to approve them.
It may include:
Expenses can connect with Employees, Projects, Accounting, and Approvals.
Odoo Point of Sale manages store, restaurant, or counter billing.
Important POS features may include:
POS connects with:
Odoo POS is useful for:
Odoo Project helps manage tasks, deadlines, teams, stages, and project progress.
It may include:
Projects can connect with Sales, Timesheets, Field Service, Helpdesk, Documents, and Invoicing.
Odoo Timesheets helps track time spent on projects, tasks, customers, and activities.
It may include:
Timesheets are useful for:
Odoo Planning helps schedule employees, shifts, projects, and resources.
It may support:
Planning is useful for businesses with shift workers, field teams, service teams, and project resources.
Odoo Field Service manages work performed at customer locations.
It may include:
Field Service can connect with:
It is useful for equipment service, appliance repair, industrial maintenance, installation, and on-site support.
Odoo Helpdesk manages customer tickets, service requests, support teams, and response workflows.
It may include:
Helpdesk is useful for:
Odoo Website allows businesses to build and manage websites connected with ERP data.
It may include:
The Website module can connect directly with CRM, Sales, eCommerce, Events, Appointments, and Helpdesk.
Odoo eCommerce helps businesses sell products and services online.
It may include:
eCommerce works with:
This connection allows website orders to update sales and inventory workflows.
Odoo Subscriptions helps manage recurring products and services.
It may include:
It is useful for:
Odoo Rental manages products or equipment rented for a defined period.
It may include:
It is useful for equipment rental, event rentals, vehicle rentals, tools, machinery, and furniture rental.
Odoo provides several marketing-related applications.
Used for email campaigns, mailing lists, templates, and campaign reports.
Used for SMS campaigns and customer communication.
Used to create automated campaign workflows based on triggers and customer actions.
Used to manage social media activity and campaign visibility.
Used to manage registrations, attendees, tickets, schedules, and event communication.
Used to create feedback forms, assessments, questionnaires, and customer surveys.
These applications can connect with CRM, Website, Sales, Events, and customer records.
Odoo Documents helps organize, share, request, and process business files.
It can support:
Odoo Sign supports electronic document-signing workflows.
It may include:
Documents and Sign can reduce paper-based processes.
Odoo Knowledge provides a shared business knowledge base.
It may be used for:
Knowledge can help businesses centralize operational information instead of keeping it across documents, messages, and individual computers.
Odoo provides reporting, spreadsheet, and dashboard capabilities for analyzing business data.
Businesses can use them for:
Custom dashboard development may still be required when businesses need specialized visualizations, complex calculations, role-based reporting, or external data.
Odoo Approvals helps manage internal approval requests.
Examples include:
Odoo Studio allows supported users to customize fields, views, models, automation rules, reports, and approval rules without building every change from the beginning.
Studio is useful for controlled low-code customization.
Complex workflows and integrations may still require custom development.
Odoo modules create value when they share one connected process.
CRM → Sales → Inventory → Invoicing → Accounting
A lead enters CRM.
The salesperson creates a quotation.
The quotation becomes a sales order.
Inventory reserves and delivers the product.
The invoice is generated.
Accounting tracks payment.
Purchase → Inventory → Accounting
A purchase requirement is created.
The company sends a request for quotation.
A purchase order is confirmed.
Inventory receives the material.
Accounting records the vendor bill and payment.
Sales or Forecast → Manufacturing → Inventory → Quality → Maintenance → Accounting
Demand creates production requirements.
Manufacturing orders consume materials.
Quality checks validate output.
Finished goods enter inventory.
Maintenance supports equipment availability.
Accounting receives valuation and costing information.
CRM → Sales → Project or Helpdesk → Timesheets → Field Service → Invoicing
A customer requirement enters CRM.
A quotation is approved.
A project or service ticket is created.
Employees record time and work.
The customer signs completion.
The business generates an invoice.
POS → Inventory → Purchase → Accounting → CRM
A sale is completed through POS.
Inventory is updated.
Low stock triggers replenishment.
Accounting receives the transaction.
Customer information supports loyalty and marketing.
A small business should usually begin with a limited module set.
Recommended starting modules may include:
A service-based small business may start with:
A small retailer may start with:
The correct module list depends on the biggest operational problem.
Recommended manufacturing modules may include:
Optional integrations may include:
Manufacturers should implement modules in stages to control operational risk.
Recommended modules may include:
Additional needs may include:
Recommended retail modules may include:
Multi-branch retailers may also require:
Recommended modules may include:
The module combination depends on whether the company charges by service, project, hours, contract, or subscription.
Construction businesses may use:
Custom development may be required for:
Healthcare businesses may use:
Industry-specific clinical workflows may require custom modules and careful privacy controls.
Educational institutions may use:
Student information, examinations, fees, and academic workflows may require additional customization.
Odoo Community and Enterprise do not always provide the same feature set.
Community is the open-source edition.
Enterprise provides additional applications, services, and functionality under a commercial subscription.
Before selecting an edition, businesses should check:
A Community implementation may reduce direct licence costs but require more custom development and maintenance.
An Enterprise implementation may include more packaged capabilities but carries recurring subscription costs.
The right choice depends on the complete business requirement.
Use the following process to select modules.
Examples:
Document how work moves between departments.
Choose the applications directly connected to the main problem.
Check which modules must work together.
Determine what Odoo can handle through configuration and what requires customization.
Implement high-impact modules first.
Identify what data each module needs.
Decide who will use each module.
Test with one department, branch, or process when practical.
Add modules after the first phase becomes stable.
A practical implementation order for many businesses is:
This sequence should be adjusted based on the business.
More modules create more configuration, testing, and training.
The module should solve a real business process.
Connected workflows must be planned together.
User adoption, reports, integration, and support also matter.
Customization should be used only where it creates business value.
Each module needs accurate master and transaction data.
Every user should have appropriate access.
Finance workflows should be reviewed by qualified professionals.
Users need process-based training, not only software demonstrations.
Businesses should plan future phases before heavily customizing the first phase.
For readers who want to review Odoo’s current application categories, link to the official Odoo application documentation.
Suggested anchor text:
official Odoo applications list
For readers who want to understand Odoo CRM, link to the official CRM documentation.
Suggested anchor text:
Odoo CRM documentation
For readers who want to understand Odoo Inventory and warehouse features, link to the official Inventory documentation.
Suggested anchor text:
Odoo Inventory documentation
For readers who want to understand Odoo Manufacturing, link to the official Manufacturing documentation.
Suggested anchor text:
Odoo Manufacturing documentation
For readers who want to understand app installation and dependencies, link to the official Apps and Modules documentation.
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Odoo apps and module dependencies
Tech4LYF Corporation helps businesses in Chennai and across India select, implement, customize, integrate, and support the right Odoo modules.
Tech4LYF studies the company’s departments, workflows, pain points, users, reports, branches, and growth plans.
The team maps business requirements against standard Odoo applications.
This identifies:
Tech4LYF creates a phased roadmap so businesses can implement priority modules first.
Modules can be configured for:
Tech4LYF can build custom fields, reports, workflows, dashboards, print formats, and industry-specific modules.
Odoo modules can be integrated with:
Tech4LYF helps migrate customer, vendor, product, stock, employee, accounting, BOM, sales, and purchase data from existing systems.
Users receive role-based training before go-live.
Tech4LYF provides support, improvements, new reports, new modules, integrations, and future upgrades.
The Odoo modules list covers almost every major business function, including CRM, Sales, Purchase, Inventory, Accounting, Manufacturing, HR, POS, Projects, Helpdesk, Website, eCommerce, Marketing, Documents, and productivity.
However, the value of Odoo does not come from installing the highest number of modules.
The value comes from selecting the right applications, connecting them correctly, configuring them around real workflows, migrating accurate data, training users, and expanding the system gradually.
A small business may need five core modules.
A manufacturer may need fifteen connected modules.
A retail chain may need POS, Inventory, Purchase, Accounting, CRM, and branch dashboards.
A service company may need CRM, Projects, Timesheets, Field Service, Helpdesk, and Invoicing.
There is no single module list that fits every company.
The right Odoo ERP structure should be designed around the business model, industry, departments, users, reports, integrations, and future growth plan.
Tech4LYF Corporation helps Indian businesses identify and implement the Odoo modules that create practical operational value.
Are you planning to implement Odoo ERP but unsure which modules your business needs?
Talk to Tech4LYF Corporation and get a practical Odoo module roadmap based on your workflow, departments, users, reports, integrations, and growth plan.
Whether you need Odoo CRM, Sales, Purchase, Inventory, Accounting, Manufacturing, HR, POS, Projects, Helpdesk, Website, eCommerce, dashboards, migration, or custom modules, Tech4LYF can help you select and implement the right Odoo applications.
Contact Tech4LYF Corporation today to discuss your Odoo ERP module requirements.
The main Odoo modules include CRM, Sales, Purchase, Inventory, Accounting, Invoicing, Manufacturing, Quality, Maintenance, HR, Attendance, Time Off, POS, Projects, Timesheets, Field Service, Helpdesk, Website, eCommerce, Marketing, Documents, Sign, Knowledge, and Dashboards.
A small business can often start with CRM, Sales, Purchase, Inventory, Invoicing, Expenses, Employees, and Website. The exact module selection depends on whether the business sells products, provides services, manages inventory, or operates retail stores.
Odoo CRM is used to manage leads, sales opportunities, follow-up activities, sales teams, expected revenue, pipeline stages, lost reasons, forecasts, and conversion reports.
Odoo Inventory manages warehouses, locations, receipts, deliveries, internal transfers, stock adjustments, replenishment, lot numbers, serial numbers, packages, expiry dates, inventory valuation, and stock reports.
Odoo Manufacturing or Odoo MRP manages bills of materials, manufacturing orders, work orders, work centers, routing, material consumption, finished goods, production planning, scrap, and manufacturing reports.
Yes. Odoo modules are designed to share connected business data. For example, CRM can create a quotation in Sales, Sales can reserve stock in Inventory, Inventory can trigger Purchase, and Accounting can generate invoices and financial entries.
No. Businesses should implement only the modules needed for their current processes. More modules can be added later as the company grows or new operational requirements appear.
Manufacturers commonly use Sales, Purchase, Inventory, Manufacturing, Quality, Maintenance, PLM, Barcode, Accounting, Employees, Planning, Documents, and management dashboards.
Retail businesses commonly use POS, Inventory, Purchase, Sales, Accounting, CRM, Loyalty, Barcode, Website, eCommerce, Employees, and branch dashboards.
An Odoo app is usually a major user-facing business application, such as CRM or Inventory. A module may be a major app or a smaller technical component that extends another application or enables a specific feature.
No. Community and Enterprise editions have different feature sets. Businesses should verify module availability, hosting requirements, customization needs, and total ownership cost before selecting an edition.
Tech4LYF helps businesses select the correct Odoo modules, map workflows, configure applications, customize reports, migrate data, integrate external systems, train users, and provide post-go-live support.
