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Payment Parameters

Method GET

URL

https://xxx.finexusgroup.com/upp/faces/reversal0400.xhtml?

The Payment Reversal Request Message can be used in the following scenarios:

  • Reverse an Earlier Timeout Transaction: To undo a transaction that did not complete due to a timeout.
  • Reverse a Charge Due to Non-Delivery: To reverse the charge if the merchant failed to deliver the goods or services.

Other conditions:

  • Reversal Amount Limitations: The merchant's server cannot reverse an amount greater than the initially approved amount.
  • Partial Amount Reversal: Partial reversals are not supported and will be rejected.
  • Acquirer System Support: The ability to process online reversals depends on whether the acquirer system supports such messages.
  • Settlement Cut-Off Time: The reversal request may be rejected if the previously approved transaction has already been settled, in accordance with the acquirer’s settlement cut-off time.

Mandatory Fields

Field NameTypeLengthDescriptionExample
PaymentIDString3Payment method / function."C15"
MerchRefNoString40Unique merchant reference number."2021061414062020000"
CurrCodeString3ISO 4217 currency numeric code."458"
TxnAmtString (Numeric)12Transaction amount with two decimals and thousand symbols.

Note: Maximum value is 12 digits; which includes the digit(s) after the decimal place.
"1280.99"
ExpTxnAmtString1Exponent of transaction amount."2"

Example Message

CC Payment Reversal Request
curl -X GET 
"https://xxx.finexusgroup.com/upp/faces/reversal0400.xhtml?h001_MTI=0400&h002_VNO=06&h003_TDT=20230526&h004_TTM=150505000&f001_MID=D1022012123f003_ProcCode=220000&f004_PAN=&f006_TxnDtTm=20230526112551&f007_TxnAmt=000000000100&f008_POSCond=59&f010_CurrCode=458&f011_AuthIDResp=&f019_ExpTxnAmt=2&f023_RRN=&f257_PGRN=&f260_ServID=FNX&f261_HostID=&f262_SessID=&f263_MRN=2021061414062021072&f264_Locale=en&f270_ORN=&f272_RURL_CCR=http%3A%2F%2Flocalhost%2Fclient%2F&t001_SHT=SH2&t002_SHV=E73CEDA9D9A8D1AAF59BDB919EF7C82D52671A4B457CE816BCE91AFF31485259" \