Click on the Trigger button to initiate the sending of a payload containing UPI transaction details. This action simulates an actual UPI payment by triggering the transmission of relevant information, including details such as the transaction amount, virtual payment address (VPA), transaction ID (UTR), and any other pertinent transaction-specific data.

Click on the Response button to inspect the collect requests that have been received and logged by the client server. This step allows you to review and verify the details of the UPI payment requests received on the server side. Examining the logged data provides insights into the transaction flow, enabling you to confirm the correctness of the information and ensure that the payment requests are being appropriately processed and recorded.