Odoo 20 Migration Guide: Steps, Checklist, Costs & Risks
                     Odoo Odoo 20
Odoo 20 Migration Guide
How to Migrate to Odoo 20?
A practical guide to planning, upgrading, testing

and going live.
Assess Prepare Migrate Test Go Live
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The Business Case
Why Migrate to Odoo 20?
A version upgrade can be an opportunity to modernize the ERP foundation, 
not just change the version number.
Maintainability Lower technical debt
01 Modernize legacy code, 03 Review old customizations 05
dependencies, and and remove unnecessary 
technical architecture. complexity.
New Capabilities Compatibility Future readiness
Access the latest Odoo 02 Align the ERP environment 04 Create a cleaner 
functionality and platform with current supported foundation for integrations 
improvements. technologies. and future development.
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Prepare First
Odoo 20 Pre-Migration Checklist
A version upgrade can be an opportunity to modernize the ERP foundation, 
not just change the version number.
Current Environment Data quality
Odoo version, hosting model, database, users Duplicates, obsolete records, data cleanup
Custom modules Third-party apps
Custom Python, XML, JavaScript, reports Compatibility and replacement requirements
Integrations Infrastructure
APIs, payment gateways, external systems Python, PostgreSQL, server & deployment requirements
Business workflows Recovery plan
Critical processes, reports, permissions Verified backup and rollback procedure
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Six Key Steps
Odoo 20 Migration Process
01 02 03 04 05 06
Assess Backup Prepare Migrate Test Go Live
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Custom Development
What Happens to Custom Odoo Modules?
Custom development can determine the complexity, effort, and timeline

of an Odoo 20 migration.
Keep Upgrade
Compatible and still required Useful, but code changes are needed
Replace Redevelop
Standard Odoo 20 can cover the requirement Major compatibility or architecture changes

are required
Also review: custom reports • automated actions • JavaScript

• third-party modules • APIs • external integrations
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Planning
Odoo 20 Migration Timeline & Cost
There is no universal timeline or fixed migration price. Complexity comes 
from the existing environment.
Business size Users Typical timeline Cost Drivers
Small business Up to 10 4–8 weeks Version gap being closed
Data volume & quality
Number of custom modules
Mid-size business 11–50 8–12 weeks
Third-party integrations
User training needs
Enterprise 50+ 3–6 months
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Risk Management
Odoo 20 Migration Risks & How to Manage Them
Data inconsistencies Custom module failure
Validate and clean data before Run a complete compatibility The Rule
migration audit
Integration errors Business disruption Don't treat testing

Test every critical integration Plan deployment and downtime  as the final step.
carefully
Test progressively throughout the 
Functional issues Unexpected errors migration so issues are found before 
Perform end-to-end UAT Maintain verified backups and production deployment.
rollback procedures
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Action Plan
Your Odoo 20 Migration Roadmap
01 02 03 04 05 06 07
Assess Plan Prepare Migrate Test Go Live Optimize
Planning an Odoo 20 upgrade?
Get your Odoo environment assessed before migration.
Techvoot Solutions Contact us
Odoo ERP Implementation • Customization • Migration • Support [email protected]