**Description：** - Refund a Transaction **Request URL：** - https://sandbox.payfabric.com/payment/api/transaction/process **Method：** - POST **Parameters：** |Name|Require|Type|Description| |:---- |:---|:----- |----- | |Type |Yes |String |Refund | |ReferenceKey |Yes |String |Transaction Key | **Request：** ``` {"Type":"Refund","Amount":"1.00","ReferenceKey":"21051700697014"} ``` **Response:** ``` { "AVSAddressResponse": "N", "AVSZipResponse": "N", "AuthCode": "010101", "CVV2Response": null, "CardType": "Credit", "ExpectedSettledTime": "2021-05-19T03:00:00.0000000Z", "FinalAmount": "1.00", "IAVSAddressResponse": "N", "Message": "Approved", "OrigTrxAmount": "1.00", "OriginationID": "A70EAF008422", "PayFabricErrorCode": null, "RespTrxTag": null, "ResultCode": "0", "SettledTime": null, "Status": "Approved", "SurchargeAmount": "0.00", "SurchargePercentage": "0", "TAXml": "TSYS(Vital\/VisaNet)<\/Processor>Credit<\/PaymentType><\/Connection>6<\/Type>Approved<\/Status>NeededData<\/Category><\/Transaction><\/NeededData>6<\/Type>Approved<\/Status>FailureData<\/Category><\/Transaction><\/FailureData>6<\/Type>Approved<\/Status>ResponseData<\/Category>ResultCode<\/Name>0<\/Desc>0<\/Value><\/Field>ResponseMsg<\/Name>Approved<\/Desc>Approved<\/Value><\/Field>AuthCode<\/Name>010101<\/Desc>010101<\/Value><\/Field>OriginationID<\/Name>A70EAF008422<\/Desc>A70EAF008422<\/Value><\/Field>Token<\/Name>A70EAF008422<\/Desc>A70EAF008422<\/Value><\/Field>AVSAddResponse<\/Name>N<\/Desc>N<\/Value><\/Field>AVSZipResponse<\/Name>N<\/Desc>N<\/Value><\/Field>IAVSAddressResponse<\/Name>N<\/Desc>N<\/Value><\/Field><\/Fields><\/Transaction><\/ResponseData>6<\/Type>1<\/Status>RequestData<\/Category>ACCT<\/Name>Credit Card Number<\/Desc>0<\/Required>0<\/Encrypted>1<\/Type>XXXXXXXXXXXX1111<\/Value><\/Field>EXPDATE<\/Name>Expiration Date MMYY<\/Desc>0<\/Required>0<\/Encrypted>1<\/Type>1222<\/Value><\/Field>BillToFirstName<\/Name>First Name<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>test<\/Value><\/Field>BillToLastName<\/Name>Last Name<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>zdd<\/Value><\/Field>BillToCity<\/Name>City<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>San Francisco<\/Value><\/Field>BillToState<\/Name>State<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>IN<\/Value><\/Field>BillToZip<\/Name>Zip<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>94109<\/Value><\/Field>Amt<\/Name>Transaction Amount<\/Desc>0<\/Required>0<\/Encrypted>3<\/Type>1.00<\/Value><\/Field>ORIGID<\/Name>Origination ID<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>A40E0DCF1AD5<\/Value><\/Field>InvNum<\/Name>Invoice Number<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>118<\/Value><\/Field>ShipToZip<\/Name>Ship to Zip<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>10001<\/Value><\/Field>BillToCountry<\/Name>Country Code<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>USA<\/Value><\/Field>CustCode<\/Name>Customer Code<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>1<\/Value><\/Field>BillToStreet<\/Name>Account Holder Street<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>600 Ellis Street <\/Value><\/Field>CurrencyCode<\/Name>Currency Code<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>USD<\/Value><\/Field>ShipToCity<\/Name>Shipping City<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>New York<\/Value><\/Field>ShipToState<\/Name>Shipping State<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>NY<\/Value><\/Field>ShipToStreet<\/Name>Shipping Street<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>600 Ellis Street <\/Value><\/Field>ShipToCountry<\/Name>Shipping Country<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>US<\/Value><\/Field>ShipToPhone<\/Name>Shipping Phone<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>134134134<\/Value><\/Field>ShipToEmail<\/Name>Shipping email.<\/Desc>0<\/Required>0<\/Encrypted>2<\/Type>Jack.Zhang@nodus.com<\/Value><\/Field>PaymentType<\/Name>1<\/Value><\/Field>ItemProdCode<\/Name>11<\/Value><\/Field>ItemDesc<\/Name>Product Name<\/Value><\/Field>ItemCost<\/Name>10<\/Value><\/Field>ItemQuantity<\/Name>1<\/Value><\/Field>ItemDiscount<\/Name>0.5<\/Value><\/Field>ItemProdCode<\/Name>107<\/Value><\/Field>ItemDesc<\/Name>product1<\/Value><\/Field>ItemCost<\/Name>20<\/Value><\/Field>ItemQuantity<\/Name>1<\/Value><\/Field>ItemDiscount<\/Name>0.5<\/Value><\/Field>AuthCode<\/Name>010101<\/Value><\/Field>TRXFIELD_D2<\/Name>XXXXXXXXXXXX1111<\/Value><\/Field>CCType<\/Name>Visa<\/Value><\/Field>AccountName<\/Name>test zdd <\/Value><\/Field>Address1<\/Name>600 Ellis Street<\/Value><\/Field>SaveCreditCard<\/Name>0<\/Value><\/Field>MSO_PFTrxKey<\/Name>21051700697047<\/Value><\/Field>PF_TransactionKey<\/Name>21051700697047<\/Value><\/Field>MSO_WalletID<\/Name>00000000-0000-0000-0000-000000000000<\/Value><\/Field>MSO_EngineGUID<\/Name>8bd91556-6e0b-42e3-a86e-a427f7bb877f<\/Value><\/Field>TransactionInitiation<\/Name>Customer<\/Value><\/Field>TransactionSchedule<\/Name>Unscheduled<\/Value><\/Field>AuthorizationType<\/Name>NotSet<\/Value><\/Field>CCEntryIndicator<\/Name>Entered<\/Value><\/Field>POSEntryMode<\/Name>01<\/Value><\/Field>MSO_Last_Xmit_Date<\/Name>2021-05-17 00:00:00<\/Value><\/Field>MSO_Last_Xmit_Time<\/Name>1900-01-01 11:55:12 PM<\/Value><\/Field>MSO_Last_Settled_Date<\/Name>1900-01-01<\/Value><\/Field>MSO_Last_Settled_Time<\/Name>1900-01-01 00:00:00<\/Value><\/Field><\/Fields><\/Transaction><\/RequestData><\/Transaction><\/TransactionData>", "TerminalID": null, "TerminalResultCode": null, "TrxAmount": "1.00", "TrxDate": "5\/17\/2021 11:55:12 PM", "TrxKey": "21051700697047", "WalletID": "00000000-0000-0000-0000-000000000000" } ``` For more information and descriptions please see our [PayFabric](https://github.com/PayFabric/APIs/blob/master/PayFabric/README.md "PayFabric").