Prerequisites for Wireless



Once you are onboarded, Paytm will provide the test account credentials for testing the flow on its staging environment. It is mandatory to test the integration before moving into the live environment with production account details (received from the Paytm team)


Read about Checksum Utility and Logic


To read about Checksum Utility, refer to Checksum Generation and Validation document.




  1. Merchant can generate checksum with the following mandatory body parameters:-

    paytmMid, paytmTid, transactionDateTime, merchantTransactionId, transactionAmount

  2. Also, include below optional parameters also in checksum, if they are used in the request.  

    subWalletInfo, merchantReferenceNo, merchantExtendedInfo, splitMethod, splitInfo