Reversal - emvreverse

This section describes the message parameters for EMV Card Reversal transaction processing, which you can submit using the XML API integration method. Refer to the Integration Methods section for more information.

The emvreverse transaction reverses an approved authorization from an emvchipsale transaction after a decline by card  is received from the Chip card. The Chip card may decline the transaction data even after an Issuer approval, in this case a reversal must be sent to restore the funds back to the card. This action can be performed within 5 minutes after an emvchipsale transaction.

In this section:

For the entire list of API endpoints, refer to API Endpoints.


Field nameDescriptionRequiredLengthData type
ssl_merchant_idMerchant ID
Elavon-assigned Converge Account ID (AID).
Required6 or 7numeric
ssl_user_idConverge User ID
The user ID with Hosted Payment API User status that can send transaction requests through the terminal.
ssl_pinTerminal ID
Unique identifier of the terminal that will process the transaction request and submit to the Converge gateway.
The ssl_user_id sending the transaction request must be associated with the terminal that will process the request.
ssl_transaction_typeTransaction Type
Valid value:  emvreverse
ssl_txn_idTransaction ID
Unique identifier of the previously approved Sale (emvchipsale) transaction.


Field nameDescription
ssl_resultTransaction Outcome
An ssl_result = 0 indicates a successful reversal.
ssl_result_messageTransaction Result Message
A result of SUCCESS indicates that transaction was reversed.
ssl_txn_idTransaction ID
Unique identifier of the transaction.
[Error]Returned only if an error occurs. Refer to the Error Codes section for more information.
errorCodeError Code
Typically, when the transaction failed validation or the request is incorrect. This will prevent the transaction from going to authorization. This is a numeric field.
errorMessageError Message
Detailed explanation of the error. This field may be changed based on merchant configuration in the user interface.
errorNameError Name
Error name or reason for the error.



  • In this example, you will have to change the data values, such as my_merchant_id, my_user_id, my_pin, and transaction data to match your Converge account and meet the needs of your website.
  • Code samples provided are for demonstration only and should not be used for live transactions. All sensitive merchant data, including transaction amounts and your Converge credentials, should be placed in server side code.