Attendance Management System is a software application designed to manage and automate employee/student attendance records within an organization or institution. It helps users record attendance,monitor attendance reports, and maintain accurate attendance data. The system improves efficiency, reduces manual work, and provides better transparency in attendance tracking. Performed manual testing and API testing for an Attendance Management System. Conducted functional testing, workflow validation, and exploratory testing to identify usability issues and ensure system reliability. Tested REST APIs by validating endpoints, request/response data, status codes, authentication, and error handling to verify backend functionality.