Worked on the pimcore/pimcore repository to enhance developer experience by clarifying the Many-To-One relation semantics within the codebase. Focused on improving documentation, specifically detailing the behavior of the 'classes' attribute to reduce ambiguity and prevent misconfigurations. Used Markdown to deliver precise, auditable updates that explain how null and empty array values affect object class selection. This documentation-centric approach aimed to streamline onboarding for new developers and support more robust data modeling practices. The work emphasized maintainability and cross-team clarity, ensuring that future contributors can easily understand and apply the intended relation logic within Pimcore’s data structures.