
Official Odoo Silver Partner · United Kingdom
Odoo Migration Services in the UK
OzonLayer moves UK businesses to the latest Odoo version, or onto Odoo for the first time, without losing data or disrupting daily work. We upgrade older Odoo databases, switch Community to Enterprise and migrate from Sage, Xero, QuickBooks and spreadsheets.
As an official Odoo Silver Partner and specialist Odoo migration company, we treat every move as a finance project as much as a technical one: data is cleaned and reconciled, custom modules are upgraded and tested, and cut-over is timed around your VAT periods. We work remotely with businesses across England, Scotland, Wales and Northern Ireland.
Trial run
before every cut-over
VAT-safe
balances reconciled at cut-over
Silver
Official Odoo partner
UK
What we migrate
- Older Odoo versions to the latest release
- Odoo Community to Odoo Enterprise
- Sage, Xero and QuickBooks data
- Spreadsheets and legacy ERPs
- Custom modules and integrations
- Databases between hosting platforms
Your old system is backed up, with a rollback plan for cut-over.
Migration types
Types of Odoo Migration We Handle in the UK
Our Odoo migration services in the United Kingdom cover the four most common scenarios, each with its own risks and checks.
Upgrade
Odoo version upgrades
Moving from an older release, such as Odoo 14, 15 or 16, to a current version. The database structure changes between versions, so data and custom modules are upgraded together rather than simply copied across.
Edition
Community to Enterprise
Switching editions to gain full Accounting, Studio, Helpdesk, mobile apps and Making Tax Digital VAT submission to HMRC. We install the Enterprise modules and check that existing data and customisations still work.
Switch
Legacy software to Odoo
Replacing Sage, Xero, QuickBooks, spreadsheets or an older ERP. Here the work focuses on data extraction, mapping and reconciliation rather than code.
Hosting
Hosting moves
Moving an Odoo database between Odoo Online, Odoo.sh and your own servers, for example when you need custom modules that Odoo Online does not allow.
How we work
Our Odoo Migration Process
Every migration follows the same six steps, so nothing reaches your live system until your team has checked it on real data.
Smaller migrations can be completed in about a week; larger or heavily customised systems take longer. We confirm the timeline after reviewing your database.
Odoo support in the UK →01
Strategy and planning
We review your current system, identify dependencies and assess custom modules, then produce a migration roadmap, timeline and approach.
02
Data mapping and extraction
Finance, CRM, inventory, sales and HR records are mapped, extracted and transformed under strict security controls, so every record arrives complete.
03
Data clean-up
Duplicates, formatting errors and obsolete records are removed, so you start on the new system with clean, reliable data.
04
Configuration and custom modules
We configure Odoo, upgrade the customisations you still need and reconnect your integrations, so everything works after the move.
05
Testing and validation
Functional, performance and user acceptance testing on a full trial migration, including checks on custom workflows in every department.
06
Go-live and support
After cut-over we monitor the system, fine-tune performance, train your staff and provide ongoing Odoo support.
UK checklist
Our UK Migration Checklist: Protecting Your Data and VAT Records
A migration is only successful if the numbers match afterwards. For UK companies we pay particular attention to finance and compliance data.
Every check is signed off by your finance team before the old system is switched off.
Cut-over timing
Go-live is usually planned for the start of a VAT quarter or financial year, so reports and VAT returns are not split across two systems.
Trial balance and VAT reconciliation
Balances, VAT control accounts, aged debtors and aged creditors are checked in both systems before sign-off.
Stock valuation
Quantities and values per warehouse are compared before and after migration.
Historical records
Closed invoices, attachments and audit trails remain accessible for HMRC enquiries and statutory record-keeping.
Trial migration first
A full test migration runs on a copy of your database, so your team can check real data before the final cut-over.
Rollback plan
A backup of your old system is kept, with a clear plan for reverting if a critical issue appears during cut-over.
Before you start
How to Prepare for an Odoo Migration
A little preparation makes the migration faster and smoother, and less data to move means less to check.
Our team guides you through each of these steps, from the first review to go-live. Moving to Odoo for the first time? See our Odoo implementation services in the UK.
Odoo implementation in the UK →01
List what you use
Note the Odoo apps, custom modules and integrations you use today, and any you no longer need.
02
Archive old records
Archive obsolete products, contacts and draft documents, so less data needs to be moved.
03
Agree a cut-over date
Choose a date with your finance team, away from month-end and VAT deadlines.
04
Nominate key users
Pick testers from each department to check the migrated system with real scenarios.
05
Freeze non-essential changes
Pause new customisations and settings changes on the old system while the migration is under way.
Timeline and cost
What Affects the Timeline and Cost of an Odoo Migration?
No two migrations are the same, so we scope each one after reviewing your current system, and you get a scoped proposal before any work starts.
The main factors
- the gap between your current and target Odoo versions;
- the number and complexity of custom or third-party modules;
- the size of the database and the quality of existing data;
- integrations that must be reconnected and retested;
- the user testing, training and post-migration support you need.
Custom modules that need rebuilding are handled by our Odoo development team. For a wider Odoo project, our Odoo price guide explains what drives the budget.
Read the Odoo price guide →Questions to ask any Odoo migration company
If you are comparing providers, these answers say a lot about the risk of the project:
- How do you test upgraded custom modules?
- How do you reconcile balances, VAT and stock after migration?
- Will we see a full trial migration before cut-over?
- What is the rollback plan if something goes wrong?
- Who supports us after go-live, and how?
Our answers to each of these are set out on this page, and we will walk you through them in your free consultation.
Why OzonLayer
Why OzonLayer for Odoo Migration?
Every migration is planned around your business objectives, with flexible engagement options that keep costs under control. These are facts you can check before you speak to us.
01
Official Odoo Silver Partner
OzonLayer IT Services is listed as a Silver Partner in the Odoo partner directory, with customer references published on our partner page.
02
Certified Odoo experts
Certified functional consultants and developers who handle both the data and the code side of a migration.
03
Support after go-live
Monitoring, performance tuning, user training and ongoing Odoo support once the new version is live.
04
Easy to reach in the UK
Remote-first delivery across England, Scotland, Wales and Northern Ireland, a UK phone number and WhatsApp for quick answers.
Working outside the UK? See Odoo migration in Saudi Arabia, the UAE or our Odoo migration services worldwide.
Related services
Related Odoo Services in the UK
FAQs
Odoo Migration in the UK: Your Questions Answered
Can’t find what you need? Our team replies to every enquiry with a straight answer on scope, timeline and budget.
Ask a migration expert
What do your Odoo migration services in the United Kingdom include?
We provide data migration, module migration, testing, customisation, cloud migration and integration, followed by full post-migration support.
How long does an Odoo migration take?
The duration depends on the size of your data, the number of custom modules and the complexity of your system. Smaller migrations can be completed in about a week, while larger or heavily customised systems take longer. We confirm the timeline after reviewing your database.
How much do Odoo migration services in the UK cost?
Costs depend on the modules in use, the volume of data and the amount of custom development to upgrade. We provide transparent, fair pricing in a scoped proposal before any work starts.
Do you provide support after migration?
Yes. We provide long-term maintenance, updates, troubleshooting and user training.
Can you migrate from Sage, Xero or QuickBooks to Odoo?
Yes. We migrate customers, suppliers, products, open invoices and bills, and opening balances from Sage, Xero, QuickBooks and similar packages, and we reconcile the figures before you go live on Odoo.
Will our custom modules work after an Odoo version upgrade?
Custom modules have to be updated for each new Odoo version. We review every custom module, upgrade the code that is still needed and replace customisations with standard features where the new version already covers them.
How do we start an Odoo migration with OzonLayer?
Book a free consultation and share details of your current system, Odoo version and modules. We assess the migration effort and send you a scoped proposal with a recommended timeline.
Odoo Silver Partner · United Kingdom
Plan your Odoo migration with confidence
Share details of your current system, Odoo version and modules. We will assess the migration effort and send you a scoped proposal with a recommended timeline.
Call +44 7477 204638 · Email info@ozonlayer.com

Odoo Certified
Certified Odoo Consultants
Functional certification · United Kingdom
