Odoo Migration : Upgrade to Odoo 19
Reduce specific developments by up to 50% and save thousands of euros with Nalios

What is a migration ?
An Odoo migration consists of transferring your database, developments, and configurations to a newer version of the software. This process goes beyond a simple technical update : it’s a strategic step that allows your company to benefit from Odoo’s latest innovations, improve system performance, and strengthen data security.
Each new version of Odoo comes with a range of improvements: new features, enhanced automation, better usability, and increased compatibility with existing modules. Conversely, staying on an outdated version exposes your company to risks such as slower performance, incompatibilities, and loss of official support.
What does a migration involve?
Migrating to a new version requires thorough preparation. It involves analyzing the current version and existing custom developments, adapting modules and business workflows, as well as testing and validating the system in a pre-production environment before the final go-live.
It’s both a technical and strategic operation that demands solid expertise to avoid any data loss and to ensure a smooth and seamless transition.
If you are using an older version of Odoo,
upgrade to Odoo 19 is inevitable.
But too often, historical partners make this transition complex and costly
Customisation too onerous to maintain ?
Customisations that are too cumbersome to maintain... Each update breaks functions. You waste time, money and mobilise your developers just to get the system up and running.
Too dependent on external service providers ?
Your ERP is outdated, with no clear vision for the future. Your team lacks autonomy and depends on external developers for day-to-day operations.
Not using Odoo to its full potential ?
You're only using some of the features available. Your current configuration is holding you back.
Still having to use Excel to get ahead ?
Your team can't rely on Odoo 100% of the time. They're juggling Excel spreadsheets instead of taking advantage of automation.

Why collaborate with Nalios for your Odoo migration?
Why migrate with Nalios ?
For most of them, we help facilitate their migration to the new Odoo version effortlessly.
To achieve this, we recommend a streamlined and efficient approach :
Less code,
better performance
Build a simple system focused on business processes, rather than overdeveloping it.
Expert team, proven processes
It's better to migrate than to patch things up.
Zero loss,
Zero interruptions
We ensure the smooth running of your data and business operations.
An Odoo ready for tomorrow
No more bugs or patchwork for the future.
Don’t just upgrade your ERP,
Upgrade the way you work !
We understand that every migration is unique. It requires careful planning and the expertise of an Odoo partner to ensure a smooth and seamless transition. We start by analyzing your current system and identifying the best solutions for a successful migration with Odoo. Then, our team supports you at every step of the optimization process :
Allocate sufficient resources
Identify third-party applications and developments
Analysing the improvements in Odoo 19
Remove unnecessary developments
Test the migrated database and document the processes
Train users
The goal is to ensure that your business fully benefits from Odoo’s new capabilities while minimizing the risks of interruptions or data loss. The duration and type of migration depend on your Odoo environment (SAS or SH). If you don’t have specific developments or customizations, the migration can be completed quickly, without the need for extensive support. However, if you have developments or customizations, more significant support will be required.
We also provide training on the new features to ensure that your teams are ready to make the most of their new system. With Nalios, you can be confident that your migration will be a success, backed by experts who know Odoo inside and out.
Want to find out more?
Discover our book on successful migration.
FAQ Odoo migration
An update applies minor fixes or improvements within the same major version (e.g., 17.0.1 → 17.0.2). A migration transfers your database, configurations, and custom developments to a higher major version (e.g., Odoo 16 → Odoo 19). It's a technical and strategic operation that requires careful planning and expert guidance.
Yes, it is technically possible to migrate from any version, including older ones like v12 or v13, directly to Odoo 19. However, the larger the version gap, the more complex the migration. Nalios analyses your specific situation to determine the best strategy: direct migration or a phased approach.
We still recommend upgrading every two versions to get the most out of the improvements in each new version of Odoo.
No, as long as the migration is properly prepared. At Nalios, we always run a full migration in a pre-production environment before going live. Every piece of data is verified, and the production migration only happens once you have validated the result. Zero data loss, zero surprises.
This is often the most sensitive point. Every custom development must be analysed, retested, and adapted to the new version. It's also an opportunity to clean up your codebase: at Nalios, we typically reduce the number of custom developments by 50%, replacing bespoke code with standard Odoo features that have evolved between versions.
The duration depends on the complexity of your instance: number of modules in use, data volume, and the extent of custom developments. A straightforward migration (limited customisation) typically takes 4 to 8 weeks. A complex migration can take 3 to 6 months. Nalios conducts a preliminary audit to give you a precise estimate.
No. The migration is carried out in parallel with your existing system. Your current Odoo instance remains fully operational right up to go-live. The final switchover is scheduled during a minimal downtime window, often over a weekend, to avoid any impact on your operations.
Technically, you can stay on an older version. But each Odoo version has a limited support lifecycle: once a version is deprecated, you no longer receive security patches or updates. Staying on an obsolete version exposes your business to growing technical and security risks. Migration is not optional : it is inevitable.
Nalios is certified across all Odoo versions from v8 to v19. Our approach stands out through a deliberate reduction of custom developments: we don't migrate unnecessary code : we simplify your system. The result: lower maintenance costs, greater team autonomy, and an Odoo that's ready for the years ahead.
+350 Successful projects
As a certified Odoo Gold Partner, we hold the highest level of recognition and have the expertise to lead even the most complex projects to success.
Local experts
Our teams are located in Europe, Quebec, and the United States and include former Odoo employees.
Certified Gold Partner
Our Gold certification means we're equipped to tackle any implementation challenge, regardless of scope or industry.





