Guillaume Goulet enhanced data validation in the AmadeusITGroup/otter repository by implementing a targeted JSON Schema update for the FC component. He introduced predefined choices for the primitiveProperty field within the FC JSON schema, enabling stricter validation and improving data consistency across related pipelines. This approach leveraged his expertise in JSON and data validation, ensuring that only permitted values are accepted and reducing the risk of downstream errors. Guillaume’s work laid the foundation for broader schema-driven validation strategies within FC integrations, demonstrating a focused and methodical approach to improving data reliability through schema design and validation best practices.