Migration from odoo 15 to odoo 18 enterprise - Eastern Enterprise
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Future-Proofing a Carbon Removal Platform with Migration from Odoo 15 to Odoo 18 Enterprise

Client / NDA

  • Industry: Carbon Removal & Sustainability
  • Region: Global
  • Services Provided: Odoo Migration, Custom API Integration, Performance Optimization
  • Technology Stack: Odoo 15 → Odoo 18 Enterprise, PostgreSQL, Python, RESTful APIs

Client Overview

Our client is a globally recognized carbon removal marketplace that enables organizations to meet Net Zero goals through science-backed and verifiable carbon removal credits. With a growing demand for climate accountability, the client required a modern, scalable ERP platform to support key operations such as partner onboarding, credit transactions, and registry automation.

Project Objective

To seamlessly migrate the existing Odoo 15 instance to Odoo 18 Enterprise while preserving:

100% of business-critical data

Custom API integrations for the carbon credit registry

Granular access control for partners and stakeholders

Portal usability for external partners

Registry logic involving carbon credit issuance and transactions

Automated workflows and audit logs

The goal extended beyond a simple upgrade — it was to future-proof the platform for scalability, performance, and long-term growth.

Key Challenge

API Compatibility

The client’s external APIs required strict backward compatibility to ensure uninterrupted integration with third-party carbon accounting platforms.

Handling Large Volumes of Data:

Years of transactional and registry data had to be migrated and preserved without losing relationships between records.

Custom Access Controls:

The client had complex, partner-specific access rules that required precise migration of permissions and access scopes across the system.

Preserving Business Rules:

Core registry logic such as how credits are issued, revoked, or transferred had to be retained exactly, with no disruption to ongoing operations.

Performance Bottlenecks

The platform experienced slow response times in key areas due to inefficient data filtering and complex relational lookups, which negatively impacted the user experience.

Our Solution

Pre-Migration Planning

  • Conducted a thorough review of the existing system and identified potential issues before migration.
  • Set up a testing environment to simulate the migration process and ensure smooth execution.

Database Migration

  • Carefully migrated all data while preserving important relationships between records to maintain data integrity.

Custom API Compatibility

  • Updated the external API endpoints to work seamlessly with the new system while keeping all security measures intact.

Security Layer Enhancements

  • Improved access controls by implementing more precise, role-based permissions for different users.

Optimizations & Refactoring

  • Optimized important processes within the system to improve overall speed and efficiency, which helped reduce waiting times and provided a smoother experience for users.

Testing & Rollout

  • Conducted extensive testing to ensure stability and accuracy.
  • Rolled out the upgraded system in stages with no downtime and comprehensive logging for audit purposes.

Impact Delivered

40% Faster API Response Time

Zero Data Loss Across Models

Seamless Partner Experience – Existing API integrations kept intact

Built a scalable foundation for future modules like Carbon Credit Auctions

Enhanced Registry Logic with better performance and maintainability

Lessons Learned

  • Prioritize Backward Compatibility: Maintaining external APIs during major upgrades requires designing modular, decoupled systems from the start.
  • Scoped Access Needs Granular Testing: When using custom API key scopes, regression testing is crucial across edge cases.
  • Refactoring Brings Long-Term ROI: Addressing technical debt during the migration made the system easier to maintain in Odoo 18 and lowered future workload.

Technologies & Tools Used

Eastern Enterprise proposed the following technology to easily reach the requested functions

Odoo 18 Enterprise –
Core ERP
PostgreSQL 16 –
High-volume data processing
Python 3.10 –
for Business logic
Pydantic –
for API Endpoints & Responses
Docker Compose –
for managing isolated dev/staging environments
Pytest / Postman –
for Automated testing
Sentry + Structured Logging –
for error tracking Error tracking and monitoring

Outcomes

The migration not only ensured compatibility with future Odoo releases but also strengthened the backend to support:
  • Upcoming product launches
  • Robust, investor-grade audit logging
  • Deeper integrations with carbon accounting tools

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