Data migration is one of the most underestimated yet crucial stages in any ERP project. A poorly managed migration can compromise the entire implementation, while a well-executed one sets the foundation for long-term success.

In this talk, I will walk you through a proven methodology for executing large-scale, complex data migrations from legacy systems to Odoo. Based on real-world delivery experience, the session will explore each phase of the process—from initial data assessment and quality checks, through mapping and transformation logic, to orchestration and incremental loads into Odoo.

We will discuss how to:

- Design and manage staging environments for safer testing and rollback

- Handle messy or inconsistent legacy data through validation and enrichment

- Automate mapping rules and data transformations using Python and SQL

- Build scalable and traceable migration pipelines using PostgreSQL and Google Cloud Platform (GCP)

- Coordinate with business stakeholders to align data models with business logic in Odoo

This session is designed for Odoo partners, delivery teams, solution architects, and data engineers who deal with complex implementations and want to bring structure and confidence to their migration process. Whether you're facing a greenfield rollout or cleaning up after a legacy handover, you'll gain practical strategies, proven techniques, and real-life lessons to guide your next migration from chaos to clarity.