Chaïb Martinez developed a document sharing analytics feature for the suitenumerique/docs repository, focusing on enabling cross-channel attribution through UTM parameters. By integrating utm_source and utm_campaign into shared document links, including both email invitations and copied links, Chaïb enhanced the measurement of sharing effectiveness. The implementation involved backend and frontend development using JavaScript and Python, with careful attention to analytics design and URL parameterization. Although the work was limited to a single feature over one month, it provided a foundation for data-driven decision-making and improved ROI tracking. The changes were committed with traceability and maintained existing tracking logic without introducing bugs.