Worked on the City-of-Helsinki/yjdh repository to address a critical bug in application state management during the submission process. Focused on front end development using React, JavaScript, and TypeScript, the work involved implementing a mechanism to preserve and centralize application state before submission, ensuring that the correct state was consistently used when sending messages across multiple pages. Updated several components to store and manage state more effectively, reducing the risk of incorrect transitions and data inconsistencies. These enhancements improved the reliability of the submission flow and contributed to a smoother user experience by eliminating state-transition issues during form submission.