Shubham K. developed billing currency support for the SupplierUpdateMaster module in the Gurukrupa-Export/gke_customization repository. By introducing a billing_currency field to the Python data model, Shubham enabled the specification of a default billing currency, addressing the need for multi-currency billing scenarios and reducing manual configuration errors. The work involved object-oriented backend development using Python and Git for version control. This feature improved financial data integrity and scalability for global customers, laying the groundwork for future currency localization. Over the course of the month, Shubham focused on robust data modeling, with no major bugs reported within the scope of this enhancement.