An expense management system for a mobile app provides users with a comprehensive solution to approve or reject the voucher directly from their smartphones or tablets. This mobile app extends the functionality of traditional expense management systems to offer users the flexibility and convenience of managing their expenses on the go. Furthermore, the app often integrates with the organization's expense management system or accounting software, ensuring seamless synchronization of expense data between the mobile app and the central system. This integration enables finance teams to access and review expense data in real-time, streamlining the approval and reimbursement process.