Worked on enhancing financial tracking and reporting reliability within the frappe/erpnext and frappe/frappe repositories. Delivered cost center propagation in returns, ensuring that cost center data flows accurately between source and target documents during sales and purchase returns. Improved the robustness of print and letterhead selectors by restricting them to relevant document types and adding safeguards for missing defaults, reducing the risk of user errors. Enabled default inclusion of filters in report print and PDF settings to ensure comprehensive reporting. Utilized JavaScript and Python across both backend and frontend development, focusing on ERP systems to deliver targeted, minimally disruptive improvements.