Payment Gateway Integration in Refund

Refund Flow (Request and Response)

Refund API ??

Refunds are reversal transactions in which money is returned to the customer's source account.
A refund can only be issued in the case of a successful or settled transaction.

Check Order Refund Request , Order Refund Response Object and samples

Order Refund Request , Order Refund Request Sample, Order Refund Response , Order Refund Response Sample

REST Post Urls:

Use the below url to create refund for order in your (backend) server.

UAT URL: uatapiv2.payg.in/payment/api/order/Refund
Production URL: apiv2.payg.in/payment/api/order/Refund

Required headers:

Header Name	Header Value
Authorization required	basic PayGAuthentication PayGAuthentication = base64encoded(MerchantAuthenticationKey:MerchantAuthenticationToken:M:MerchantKeyId) OR generate Authorization Header value in PayG Dashboard.
Content-Type required	application/json

Order Refund Request: ??

OrderKeyId required	string	Id generated based on the create order request from PayG and should be stored in your system for status, verification or any communication with PayG.
MID required	string	Please get this MID from PayG Dashboard
PaymentType required	string	Identifies the type of the payment., eg: CreditCard/DebitCard/upi,etc
PaymentTransactionId required	string	PaymentTransactionId generated for specific transaction provided by PayG system and it should not be repeated.
RefundAmount required	decimal(18,2)	Refund Amount - This amount will be shown to user for refund payment.
RefundFlagParam optional	string(1)	Notation of C and R RefundFlag.
RefundUniqueRequestId optional	alphanumeric(30)	Pass Unique Id to identify Refunds

Refund Response: ??

OrderKeyId	string	Id generated based on the create order request from PayG and should be stored in your system for status, verification or any communication with PayG.
MerchantKeyId	integer	Id which is obtained on MerchantRegistration
UniqueRequestId	string	Echo from request
OrderType	string	Echo from request
OrderAmount	decimal(18,2)	Transaction Amount
PaymentTransactionId	string	Id generated for that transaction
PaymentResponseCode	integer	Payment Status of the order. Please refer for Payment Response Codes
PaymentTransactionRefNo	string	Refunded amount Transaction reference number.
PaymentResponseText	string	eg: created, completed-approved transaction,cancelled payment by user
PaymentMethod	string Specified Values	Transaction processed with eg: CreditCard, DebitCard, UPI etc
PaymentAccount	string	Payment processed account detail. Data depending on PaymentMethod. if processed as UPI - then VPA/UPI ID, Credit/DebitCard - then Card number first 6 and last 4 digits of card, Netbanking - then BankName, Wallet - then Wallet Name like PayTM, Freecharge etc.
OrderRefundTransactionId	integer	Transaction ID generated for refund.
RefundPaymentResponseCode	integer	Refund Payment Response Code eg: 1,2,4 ..
RefundPaymentResponseText	string	Refund payment response text eg: Transaction Successful, Declined/Failed, Pending etc.
RefundFlag	string	When amount is Partially refunded then RefundFlag is showing "C" and When amount is Fully refunded then RefundFlag is showing "R"
RefundDateTime	string	Date & Time for refund transaction.
PaymentDateTime	datetime	Time & Date of the payment
UpdatedDateTime	datetime	Updated time & date of the payment

Sample

                         
 Authorization: basic YTVhZWNlNT4466tbfb47zM0MWVmNGE6ZTJkYTI2MTYxYjRiNDhmYzk1YjU5ZGFmMjE5MWZiMzM6TTo3Nzcx 
 Content-Type: application/json

                        
                        {
                            "OrderKeyId": "18258220120M8792Uf3f5b5a14p",
                            "MID": "Your MID - Provided by PayG",
                            "PaymentType": "CreditCard",
                            "PaymentTransactionId":"723333",
                            "RefundAmount":"100",
                            "RefundFlagParam":"C",
                            "RefundUniqueRequestId":"gvfdcssrd4567776"
                        }

                        
        {
    "OrderKeyId": "1176022656723M10404U3d73c9044feb4985621eab",
    "MerchantKeyId": 13804,
    "UniqueRequestId": "1234tuyuntty",
    "OrderType": "PAYMENT",
    "OrderAmount": 20.00,
    "PaymentTransactionId": "786232",
    "PaymentResponseCode": 1,
    "PaymentTransactionRefNo": "995984648728",
    "PaymentResponseText": "Approved",
    "PaymentMethod": "CreditCard",
    "PaymentAccount": "411111XXXX1111",
    "OrderRefundTransactionId": 786233,
    "RefundPaymentResponseCode": 1,
    "RefundPaymentResponseText": "ACCEPTED",
    "RefundFlag": "R",
    "RefundDateTime": "2026-08-05T17:31:29.2893791+05:30",
    "PaymentDateTime": "8/5/2026 5:30:41 PM",
    "UpdatedDateTime": "8/5/2026 5:29:24 PM",
    }

Refund Status Flow (Request and Response)

Refund Status API ??

Refunds are reversal transactions in which money is returned to the customer's source account.
A refund can only be issued in the case of a successful or settled transaction.
Once refund initiated, you can check the status if refund transaction.

Check Refund status Request ,Refund status Response Object and samples

Refund status Request , Refund status Request Sample, Refund status Response , Refund status Response Sample

REST Post Urls:

Use the below url to create refund status for order in your (backend) server.

UAT URL: uatapiv2.payg.in/payment/api/order/RefundStatus
Production URL: apiv2.payg.in/payment/api/order/RefundStatus

Required headers:

Header Name	Header Value
Authorization required	basic PayGAuthentication PayGAuthentication = base64encoded(MerchantAuthenticationKey:MerchantAuthenticationToken:M:MerchantKeyId) OR generate Authorization Header value in PayG Dashboard.
Content-Type required	application/json

Refund Status Request: ??

OrderKeyId required	integer	Id generated based on the create order request from PayG and should be stored in your system for status, verification or any communication with PayG.
UniqueRequestId optional	string	Unique Id generated for that particular Request and you can also check refund status API using UniqueRequestId.
MID required	string	Please get this MID from PayG Dashboard.
TransactionId optional	integer	original PayG TransactionID
RefundUniqueRequestId optional	alphanumeric(30)	Refund status can be checked using this parameter also

Refund Status Response: ??

OrderKeyId	string(30)	Id generated based on the create order request from PayG and should be stored in your system for status, verification or any communication with PayG.
MerchantKeyId	integer	Id which is obtained on MerchantRegistration
UniqueRequestId	string(20)	Echo from request
OrderType	string(20)	Echo from request
OrderAmount	decimal(18,2)	Transaction Amount
OrderId	string(20)	Echo from request
OrderStatus	string(10)	Status of the order. Please refer for Order Status Codes
OrderPaymentStatus	integer	Status of the order., eg: 0,1,2,3,4,5,6,7
OrderPaymentStatusText	string	Status of the order., eg: Paid
PaymentStatus	integer	Status Code of the payment.,
PaymentTransactionId	string(50)	Id generated for that transaction
PaymentResponseCode	integer	Payment Status of the order. Please refer for Payment Response Codes
PaymentApprovalCode	string(20)	Unique number identifying the Approved transaction
PaymentReasonCode	integer	Code for transaction failure/approval.
PaymentTransactionRefNo	string	Refunded amount Transaction reference number.
PaymentResponseText	string(50)	eg: created, completed-approved transaction,cancelled payment by user
PaymentMethod	string Specified Values	Transaction processed as
PaymentAccount	string(50)	Payment processed account detail. Data depending on PaymentMethod. if processed as UPI - then VPA /UPI ID, Credit/DebitCard - then Card number first 6 and last 4 of card , Netbanking - then BankName, Wallet - then Wallet Name like PayTM, PhonePe etc
CardType	string	Type of card eg: rupay, visa, mastercard etc.
CardLevel	string	Level of card eg: Domestic, platinum etc.
OrderNotes	string(100)	Risk and Security Notes - if you see detail in this, make sure to address with business team as soon as possible
PaymentDateTime	datetime	Time & Date of the payment
UpdatedDateTime	datetime	Updated time & date of the payment
PaymentProcessUrl*	url	PayG payment url for customer to pay, you need to redirect to this url for payment processing.
CustomerData	object of CustomerData	Customer data passed in oreder creation will be provided in this.
ProductData	object of ProductData	Product data passed in oreder creation will be provided in this.
OrderPaymentCustomerData	object of CustomerData	if user have changed their customer data on payG payment page while transaction processing, updated data will be provided in this.
OrderPaymentTransactionDetail	object	Transaction Details for Order for specific OrderKeyId.
OrderKeyId	string(30)	Id generated based on the create order request from PayG and should be stored in your system for status, verification or any communication with PayG.
MerchantKeyId	integer	Id which is obtained on MerchantRegistration
TransactionId	integer	Id generated for that transaction
ResponseCode	integer	Payment Status of the order. Please refer for Payment Response Codes
ResponseText	string(50)	eg: created, completed-approved transaction,cancelled payment by user
TransactionAmount	decimal(18,2)	Transaction Amount
TransactionType	String	Charge/Refund
TransactionReferenceNo	String	Transaction reference number for Charge/Refund.
RefundFlag	string	When amount is Partially refunded then RefundFlag is showing "C" and When amount is Fully refunded then RefundFlag is showing "R"
RefundUniqueRequestId	alphanumeric(30)	Refund status can be checked using this parameter also
UserDefinedData	object of UserDefinedData	User Defined Data passed in oreder creation will be provided in this. eg: "UserDefined1": "null", "UserDefined2": null etc.
Id	integer	Id generated for specific orderkeyid.

Status Sample

                         
 Authorization: basic YTVhZWNlNTg3NWEwNDA0NGJmZjQ5MWRlNzM0MWVmNGE6ZTJkYTI2MTYxYjRiNDhmYzk1YjU5ZGFmMjE5MWZiMzM6TTo3Nzcx 
 Content-Type: application/json

                        
                                {
                                "OrderKeyId": "114075260327M13791U302fb7a9766trfed",
                                "MID": "Your MID - Provided by PayG",
                                "TransactionId": 783390,
                                "RefundUniqueRequestId": "TEST202601145" //optional
                                }

        
            {
                "OrderKeyId":"114075260327M13791U302fb7a9766trfed",
                "MerchantKeyId":21456,
                "UniqueRequestId":"SEAMU09644",
                "OrderType":"PAYMENT",
                "OrderAmount":110.00,
                "OrderId":null,
                "OrderStatus":"1",
                "OrderPaymentStatus":0,
                "OrderPaymentStatusText":"Paid",
                "PaymentStatus":0,
                "PaymentTransactionId":"783390",
                "PaymentResponseCode":1,
                "PaymentApprovalCode":"",
                "PaymentReasonCode":null,
                "PaymentTransactionRefNo":"559563036675",
                "PaymentResponseText":"Approved",
                "PaymentMethod":"Upi",
                "PaymentAccount":"upi.approve@paygdigitals",
                "CardType":null,
                "CardLevel":null,
                "OrderNotes":"6.0",
                "PaymentDateTime":"3/27/2026 5:48:24 PM",
                "UpdatedDateTime":"3/27/2026 5:50:29 PM",
                "PaymentProcessUrl":null,
                "CustomerData":{
                   "CustomerId":"152433",
                   "CustomerNotes":"Mens clothing",
                   "FirstName":"Avinash",
                   "LastName":"Kushwaha",
                   "MobileNo":"8787665319",
                   "Email":"paygmail@paymail.com",
                   "EmailReceipt":false,
                   "BillingAddress":"Thane",
                   "BillingCity":"Thane",
                   "BillingState":"Maharashtra",
                   "BillingCountry":"India",
                   "BillingZipCode":"400606",
                   "ShippingFirstName":"Avinash",
                   "ShippingLastName":"Kushwaha",
                   "ShippingAddress":"Lodha thane",
                   "ShippingCity":"Thane",
                   "ShippingState":null,
                   "ShippingCountry":"India",
                   "ShippingZipCode":"400606",
                   "ShippingMobileNo":"9996669698"
                },
                "ProductData":"{'PaymentReason':'OnlineOrder for OrderNo- 1234'}",
                "OrderPaymentCustomerData":null,
                "UpiLink":null,
                "OrderPaymentTransactionDetail":[
                   {
                      "OrderKeyId":"114075260327M13791U302fb7a9766trfed",
                      "MerchantKeyId":21456,
                      "TransactionId":783390,
                      "ResponseCode":1,
                      "ResponseText":"Approved",
                      "TransactionAmount":110.00,
                      "TransactionType":"Charge",
                      "TransactionReferenceNo":"559563036675"
                   },
                   {
                      "OrderKeyId":"114075260327M13791U302fb7a9766trfed",
                      "MerchantKeyId":21456,
                      "TransactionId":783391,
                      "ResponseCode":1,
                      "ResponseText":"Transaction Successful",
                      "TransactionAmount":20.00,
                      "RefundFlag":"R", //optional
                      "RefundUniqueRequestId":"TEST202601145", //optional
                      "TransactionType":"Refund",
                      "TransactionReferenceNo":"879765766645"
                   },
                   {
                      "OrderKeyId":"114075260327M13791U302fb7a9766trfed",
                      "MerchantKeyId":21456,
                      "TransactionId":783392,
                      "ResponseCode":1,
                      "ResponseText":"Transaction Successful",
                      "TransactionAmount":30.00,
                      "RefundFlag":"R", //optional
                      "RefundUniqueRequestId":"TEST202601146", //optional
                      "TransactionType":"Refund",
                      "TransactionReferenceNo":"409965337654"
                   }
                ],
                "UserDefinedData":{
                   "UserDefined1":null,
                   "UserDefined2":null,
                   "UserDefined3":null,
                   "UserDefined4":null,
                   "UserDefined5":null,
                   "UserDefined6":null,
                   "UserDefined7":null,
                   "UserDefined8":null,
                   "UserDefined9":null,
                   "UserDefined10":null,
                   "UserDefined11":null,
                   "UserDefined12":null,
                   "UserDefined13":null,
                   "UserDefined14":null,
                   "UserDefined15":null,
                   "UserDefined16":null,
                   "UserDefined17":null,
                   "UserDefined18":null,
                   "UserDefined19":null,
                   "UserDefined20":null
                },
                "SplitPaymentResponse":null,
                "Id":114075
             }