Additional Features

This section covers the extra commands and functionalities that enhance the overall integration of the POS terminal. Here, you'll find detailed instructions on how to:

• Cancel the Last Payment: Learn how to reverse the most recent transaction when needed.
• Implement a Heartbeat Feature: Monitor the terminal's connectivity in real time to ensure continuous communication.
• Meet Acceptance Criteria: Ensure that all responses are valid XML, and every transaction is properly acknowledged.

These additional features help to maintain robust and reliable communication between your application and the POS terminal, ensuring that all transactions are executed smoothly and any issues are promptly detected.