mutation RefundPreviousPayment($refundPreviousPaymentInput: RefundPreviousPaymentInput!) {
  refundPreviousPayment(refundPreviousPaymentInput: $refundPreviousPaymentInput) {
    errors {
      ... on InternalServiceError {
        dateTimeUtc
        errorDateTime
        message
        processorResponseCode
        transactionId
      }
      ... on RuleInViolationError {
        advice
        dateTimeUtc
        errorDateTime
        explanationOfRule
        message
      }
      ... on SyntaxOnNetworkResponseError {
        attemptedNetwork
        dateTimeUtc
        errorDateTime
        message
        processorResponseCode
      }
      ... on TimeoutOnNetworkResponseError {
        attemptedNetwork
        dateTimeUtc
        errorDateTime
        message
        processorResponseCode
      }
      ... on ValidationFailureError {
        dateTimeUtc
        errorDateTime
        fieldName
        fieldPath
        message
      }
      ... on PriorPaymentNotFoundError {
        dateTimeUtc
        errorDateTime
        message
        processorResponseCode
        transactionId
      }
    }
    refundPreviousPaymentResponse {
      activityDate
      cardDetails {
        last4
        paymentBrand
      }
      duration
      isDuplicateRequest
      networkResponseDetails {
        networkResponseCode
        processorResponseCode
      }
      paymentId
      paymentMethodResponse {

      }
      sanitizedFields {
        fieldName
        fieldPath
        originalValue
        reason
        sanitizedValue
      }
      timestampUtc
      tokenDetails {
        token
        tokenizedPan
      }
      transactionId
    }

}
}

{
  "data": {
    "refundPreviousPayment": {
      "errors": [
        {
          "__typename": "InternalServiceError",
          "dateTimeUtc": "2026-01-15T14:30:00Z",
          "errorDateTime": "2026-01-15T14:30:00Z",
          "message": "example",
          "processorResponseCode": "A0000",
          "transactionId": "c9a1e2d3-4b5f-6789-0abc-def123456789"
        }
      ],
      "refundPreviousPaymentResponse": {
        "activityDate": "2026-01-15",
        "cardDetails": {
          "last4": "1234",
          "paymentBrand": "VISA"
        },
        "duration": 0,
        "isDuplicateRequest": true,
        "networkResponseDetails": {
          "networkResponseCode": "example",
          "processorResponseCode": "A0000"
        },
        "paymentId": "d8b2f3e4-5c6a-7890-1bcd-ef2345678901",
        "paymentMethodResponse": {
          "bankPaymentMethodDetails": "example",
          "cardPaymentMethodDetails": "example"
        },
        "sanitizedFields": [
          {
            "fieldName": "example",
            "fieldPath": "example",
            "originalValue": "example",
            "reason": "example",
            "sanitizedValue": "example"
          }
        ],
        "timestampUtc": "2026-01-15T14:30:00Z",
        "tokenDetails": {
          "token": "example",
          "tokenizedPan": "example"
        },
        "transactionId": "e7c3a4b5-6d7e-8901-2cde-f34567890123"
      }
    }
  }
}