What are Odoo Apps?
Odoo Apps are specialized modules, each covering a specific business area – from sales and finance to production. Each app works independently but reaches its full potential when combined with other modules through native integration.
The difference from traditional software suites: All apps use the same database, the same code stack and the same UI philosophy. No data silos, no complex interfaces, no media breaks.
The result: Real-time data across all business areas, consistent user experience and drastically reduced integration effort. You only pay for the modules you actually use – and can scale at any time.
The Odoo App Ecosystem: 80+ Core Apps, 40,000+ Extensions
Odoo Enterprise includes 80+ official Core Apps developed and maintained by Odoo SA – professionally supported, regularly updated and with quality guarantee. These cover all standard business processes: From CRM and Accounting to Manufacturing and E-Commerce.
In addition, the Odoo App Store offers over 40,000 Community and Partner-developed extensions for special use cases: Industry-specific adaptations, country localizations, third-party integrations (Payment Gateways, Shipping Carriers, POS Hardware) and niche features. Both Free and Premium Modules available.
3 Types of Odoo Apps
From official Enterprise modules to Community extensions – understand the Odoo ecosystem
Enterprise Apps: Professional & Fully Supported
Official Odoo SA Apps with Enterprise License – professional support, regular security updates and guaranteed compatibility across all releases. Ideal for Business-Critical Operations.
24/7 Odoo SA Support, SLA-backed Response Times, Bugfix Guarantee
Multi-Company, Studio Customizer, Advanced Reporting, Mobile Apps
CRM + Sales + Accounting + Inventory – expand as needed
Community Apps: Open Source & Free
Odoo Community Edition is fully Open Source (LGPL-licensed) and free to use. Includes Core Apps like CRM, Sales, Invoicing, Projects and Website-Builder – sufficient for small teams or initial testing.
Basic modules for CRM, Sales, Invoicing, Inventory, Projects, Website
Advanced Reporting, Studio, Barcode, Multi-Company, Premium Support, Mobile Apps
Recommendation: Community for Proof-of-Concept, Enterprise for Production. Upgrade possible at any time without data loss.
Marketplace Extensions: Specialized & Custom
The official Odoo App Store offers 40,000+ Third-Party Modules: Country Localizations (DATEV, GoBD, Swiss QR-Bills), Industry Solutions (Dental, Construction, Automotive), Payment Integrations (Stripe, PayPal, local Gateways) and Custom Features.
Quality-Check for App Selection:
- Verified Partners: Verified Apps with Support-SLAs and regular updates
- Community Modules: Free, but without guarantee – check Reviews & Update frequency
- Version Compatibility: Pay attention to Odoo-Version-Match (16.0, 17.0, etc.)
- Custom Development: Ruetech develops custom Apps when Marketplace is not sufficient
Native Integration: Why Odoo Apps work seamlessly together
The decisive difference to Best-of-Breed approaches: All Odoo Apps share a single PostgreSQL database, a common ORM (Object-Relational Mapping) and consistent APIs. No ETL pipelines, no middleware, no sync delays.
Start Small, Scale Smart: Begin with 2-3 Core Modules (typical: CRM + Sales + Accounting), activate additional Apps with a click when the business case is there. No reimplementation, no data migration – just activate and configure modules.
Real-World Integration Examples:
- Lead-to-Cash Flow: CRM Lead → Sales Quotation → E-Signature → Sales Order → Automated Invoicing → Payment Reconciliation → Accounting Entry – fully automated, zero manual handoff.
- Inventory Orchestration: Sales Order triggers Stock Reservation → Manufacturing Order for Make-to-Order → Purchase Order for missing material → Goods Receipt updated Stock → Delivery Order with Barcode Scanning – real-time inventory sync.
- Timesheet-to-Invoice: Project Task Timesheet → Calculate Billable Hours → automatic Invoice Line Generation → Customer Invoice with Time Log Details – transparent and tamper-proof.
- Support-to-Field-Service: Helpdesk Ticket escalates → Field Service Task Creation → Technician Assignment → Mobile App Completion → Automatic RMA Processing – closed-loop customer service.
The 7 Most Important Odoo Apps in Detail
Detailed feature overview of the most commonly used business modules for your digital backbone
Odoo CRM – Pipeline Management with Sales Intelligence
Central Lead-to-Opportunity Management Platform with Built-In Sales Automation. Manage complete Sales Funnels from Initial Contact to Deal Closure – with visibility over all Touch Points and automatic Follow-Up Workflows.
Multi-Channel Lead Capture: Website Forms, Email Gateway, Manual Import, Marketplace Integrations (LinkedIn, Google Ads) flow automatically into your pipeline. Configurable Lead Assignment Rules (Round-Robin, Territory, Lead Score) eliminate manual distribution.
Unified Customer View with complete Contact History, Email Threads, Meeting Notes and Deal Timeline
Automatic Lead Assignment by Territory, Industry, Deal Size or Custom Rules
Predictive Analytics: Expected Revenue × Win Probability for accurate Forecasts
Kanban, List, Graph, Pivot Views with Drag-and-Drop – customize according to your Sales Process
Scheduled Activities, Auto-Reminders, Follow-Up Sequences – never lose Opportunities again
Rules-based Lead Scoring, BANT Qualification, Automated Nurturing Workflows
Odoo Accounting – Automated Financial Management & Compliance
Full Double-Entry Accounting System with Native Integration to all Business Processes. Automatic Journal Entries from Sales, Purchase, Payroll, Expenses – eliminates manual data entry and reconciliation errors.
AI-Powered Bank Reconciliation: Auto-Match Transactions with ML-based Payment Recognition. Bulk Import of Bank Statements (CSV, CAMT, OFX) with Smart Suggestion Engine for Matching Rules.
Live P&L, Balance Sheet, Cash Flow – no more Month-End Delays
120+ Currencies, Auto Exchange Rates, Tax Calculation per Country Localization
Scan Vendor Invoices → AI extracts Data → Auto-Create Bills – 80% less Manual Entry
AI-Matching of Transactions, Bulk Processing, Custom Matching Rules, Payment Follow-Up Automation
Country Localizations (DATEV, GoBD, GAAP, IFRS), Audit Trail, Tax Reports (UStVA, EC Sales List)
Auto Invoice Generation, Payment Reminders, Aging Reports, Dunning Management
Odoo Sales – Quote-to-Cash Automation with Digital Signing
End-to-End Sales Order Management from Quotation to Invoice. Drag-and-Drop Quote Builder with Product Configurator, Dynamic Pricing Rules and PDF/Email Templates – professional Quotes in minutes instead of hours.
Digital Signature Integration: Customers sign Quotes online (via E-Signature Link), System automatically converts to confirmed Sales Order → triggers Delivery Order + Invoice. Zero Manual Handoff between Sales and Fulfillment.
Product Variants, Option Sets, Dynamic Pricing (Volume Discounts, Customer-Specific)
Online Signing (DocuSign, Adobe Sign), Integrated Payment (Stripe, PayPal) directly in Quote
Customers see Order Status, Invoices, Delivery Tracking – fewer Support requests
Pricelists, Discount Rules (Time-Based, Volume, Customer Segment), Promotional Campaigns, B2B/B2C Pricing
Confirmed Order → Auto Stock Reservation → Delivery Order → Customer Notification – Full Traceability
Optional Products, Product Bundles, Subscription Upgrades – maximize Customer Lifetime Value
Odoo Inventory – WMS with Real-Time Stock Tracking
Complete Warehouse Management System (WMS) with Multi-Location Support, Lot/Serial Tracking and Barcode Integration. Real-Time Stock Levels across all Warehouses, Transit Locations and Customer Sites – eliminates Stock-Outs and Overstocking.
Reordering Rules (Min/Max, EOQ), Auto-Purchase Proposals for Low Stock
Scan-to-Receive, Scan-to-Ship, Cycle Counting – paperless Warehouse Operations
Full Traceability from Supplier to End Customer – FDA/GMP compliant
Odoo Manufacturing – MRP/MES for Production Control
Full MRP (Material Requirements Planning) + MES (Manufacturing Execution System): BoM Management, Work Center Scheduling, Shop Floor Control and Quality Checks – all integrated. Make-to-Stock, Make-to-Order, Engineer-to-Order Support.
Tablet/Mobile Interface for Operators: Work Order Queue, Instructions, Quality Checks
Multi-Level BoMs, Version Control, Engineering Change Orders (ECO) with Approval Workflow
Overall Equipment Effectiveness, Downtime Tracking, Yield Analysis
Odoo HR – Complete Employee Lifecycle Management
End-to-End HR Management: Recruitment (ATS), Onboarding, Employee Database, Time Off, Performance Reviews, Payroll – modular structure for any Company Size. Employee Self-Service Portal reduces HR Admin Workload by 60%.
Job Posting, Application Tracking, Interview Scheduling, Candidate Scoring
Leave Requests, Approval Workflows, Accrual Rules, Attendance Tracking (Kiosk Mode)
Salary Structure, Payslips, Tax Calculation – available for 50+ Countries
Odoo Projects – Agile Project & Task Management
Flexible Project Management for Agile & Waterfall: Kanban Boards (Scrum), Gantt Charts (Project Planning), Calendar View – choose the View for your Workflow. Integrated Timesheet Tracking for Billable Hours and Cost Accounting.
Kanban (Agile), Gantt (Timeline), List (Sprint Planning), Calendar (Deadlines)
Timesheet per Task, Budget vs. Actual, Profitability Analysis per Project
Customer Portal: Clients see Tasks, Progress, Timesheets – full transparency
5 Must-Have Odoo Apps for Modern Companies
Our Top-Picks: Apps with highest Business Impact across all industries
Point of Sale (PoS)
Omnichannel-POS system with Offline-Mode, Hardware Integration (Barcode Scanner, Receipt Printer, Payment Terminals) and Real-Time Inventory Sync. Multi-Store capable with central Backend.
Ideal for: Retail, Gastronomy, Multi-Location Chains
Timesheets & Time Tracking
Project-based time tracking with Mobile & Desktop Apps, offline-capable. Automatic Billable Hours Calculation, Capacity Planning with Forecast vs. Actual and direct Invoice Generation. Timer or Manual Entry.
Ideal for: Consulting, Agencies, Professional Services
Subscriptions (SaaS Billing)
Recurring Revenue Management with Automated Billing, Proration, Usage-Based Pricing, Self-Service Customer Portal for Upgrades/Downgrades. MRR/ARR Analytics, Churn Tracking and Dunning Management integrated.
Ideal for: SaaS, Subscription Business Models
Helpdesk & Support Tickets
Multi-Channel Ticket Management (Email, Web Form, Live Chat, Portal) with SLA Tracking, Automated Assignment Rules, Canned Responses and Knowledge Base Integration. Customer Portal for Ticket Status Visibility.
Ideal for: All B2B/B2C Companies with Customer Support
Field Service Management
Mobile-First Field Service App for Technicians: Task Assignment with GPS Routing, Digital Signature Capture, Photo Documentation, Offline Mode and Real-Time Status Updates. Automatic Timesheet & Material Tracking.
Ideal for: Service Organizations, Maintenance, Installation
All Odoo Apps by Business Area
80+ Modules organized by Functional Domain – find the Apps for your requirements
Sales & CRM
Lead-to-Cash Management
- • CRM • Sales • Subscriptions
- • Point of Sale • Helpdesk
Finance & Controlling
Accounting & Financial Management
- • Accounting • Invoicing
- • Expenses • Documents
- • Sign • Approvals
HR & Workforce
Human Resources Management
- • Employees • Payroll
- • Planning • Timesheets
- • Recruitment • Appraisals
- • Fleet Management
Projects & Collaboration
Project & Team Management
- • Projects • Knowledge Base
- • VoIP • Surveys
- • Dashboards • Discuss (Chat)
Supply Chain & Operations
Logistics & Manufacturing
- • Inventory • Purchase
- • Manufacturing (MRP)
- • Maintenance • Quality
- • Rental • PLM
Marketing & E-Commerce
Digital Marketing & Online Sales
- • Email Marketing • Website
- • E-Commerce • Events
- • Live Chat • SMS Marketing
- • Social Media • Automation
Where to Find and Install Odoo Apps
Apps can be installed directly in the Odoo backend. Simply open the Apps menu item, search for the desired module and click Install.
If you use Odoo.sh or a Self-Hosting variant, you can additionally upload your own modules.
The complete catalog can be found in the official Odoo App Store including reviews, screenshots and compatibility information.
How to Choose the Right Odoo Apps
Strategic Framework for Requirements Analysis and App Portfolio Planning
Pain Point Analysis: Where Does It Hurt Most?
Manual accounting, delayed invoicing, missing expense tracking → Start with Accounting + Invoicing
Lost Leads, no Pipeline Visibility, Excel-based Quote Management → Start with CRM + Sales
Stock-Outs, Overstock, no Real-Time Visibility → Start with Inventory + Purchase
Industry Fit: Industry-Specific Standard Stacks
CRM + Sales + Manufacturing + Inventory + Purchase + Quality
Website + E-Commerce + Sales + Inventory + Accounting + Marketing Automation
CRM + Sales + Projects + Timesheets + Accounting + Helpdesk
Point of Sale + Inventory + E-Commerce + CRM + Accounting
CRM + Sales + Subscriptions + Helpdesk + Projects + Accounting
CRM + Sales + Inventory + Purchase + WMS + Accounting
Growth Roadmap: Plan Scaling Over Time
Smart App Adoption follows your Business Maturity. Start with Core Stack (Phase 1), expand when concrete Business Case exists (Phase 2+). Avoid Overengineering: Only activate Apps you need now.
Typical Expansion Path:
- Year 1 (Foundation): CRM + Sales + Accounting + Inventory – digitize Core Operations
- Year 2 (Optimization): + Marketing Automation + Projects + Helpdesk – optimize Customer Journey
- Year 3 (Scale): + Manufacturing / E-Commerce + HR + Field Service – scale for Business Growth
- Year 4+ (Innovation): + IoT / Custom Apps / AI Integrations – expand Competitive Advantage
Not sure where to start?
Ruetech Consulting conducts free Requirements Workshops and creates a customized App Adoption Roadmap for your Business.
Book Free App Strategy Workshop