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Incremental Authorization {#semi-integrated-pax-pymnt-svcs-increm-auth-api-intro}
=================================================================================

Use this information to process an incremental authorization in Local mode. This type of request can be made on a pre-authorization transaction to increase the authorized amount before it is captured.

Endpoints
---------

The endpoint is the same for the test and production environments.  
**Test:** ` wss://{terminal IP address:port number}/`  
**Production:** ` wss://{terminal IP address:port number}/`

Required Fields for an Incremental Authorization {#semi-integrated-pax-pymnt-svcs-increm-auth-api-reqfields}
============================================================================================================

type
:
Set the value to `IncrementalAuthorizationRequest`.

transactionId
:
Set the value to the `id` field value from the original transaction.

amountDetails.amount
:
Set the value to the transaction amount.

amountDetails.currency
:
Set the value to the currency code.

REST Example: Incremental Authorization {#semi-integrated-pax-pymnt-svcs-increm-auth-api-ex-rest}
=================================================================================================

Request

```
{
      "type": "IncrementalAuthorizationRequest",
      "transactionId": "e43069fbf85543659e478edd8d50f244",
      "amountDetails": {
        "amount": "2.00",
        "currency": "GBP"
      }
}
```

Mid-Transaction Status Updates  
During the transaction, you might receive one or more update responses indicating the current status of the transaction. You can choose to display these updates on your point-of-sale (POS) system.

```
{
      "type": "TransactionStatusResponse",
      "message": "Status update to display.",
      "canBeAborted": true/false
}
```

Response to a Successful Request

```
{
      "type" : "IncrementalAuthorizationResponse",
      "message" : "Payment approved",
      "transactionDetails" : {
        "id" : "6da4aff381e8483ebc65ebf4fbb27ec8",
        "merchantReferenceCode" : "47bd9ed54f3f4bfabb9d3ee94cfa3008",
        "submitTimeUtc" : "2023-12-01T20:39:43+0000",
        "captured" : false,
        "amountDetails" : {
          "currency" : "GBP",
          "amount" : "2.00",
          "capturedAmount" : "0.00",
          "refundableAmount" : "0.00"
        }
      },
      "processingDetails" : {
        "status" : "APPROVED",
        "verificationMethod" : "NONE",
        "entryMode" : "MANUAL",
        "card" : {
          "expirationMonth" : "00",
          "expirationYear" : "00",
          "type" : "VISA",
          "maskedPan" : "476173XXXXXX0119"
        }
      },
      "additionalInformation" : {
        "requestId" : "7014631843806649604009"
      },
      "linkedOperations" : [ ],
      "receipts" : {
        "merchantReceipt" : {
          "preformattedReceipt" : "Merchant Receipt\nCP Test\nSample Street\nUB3 2EA London\nUnited Kingdom\n1234567\n\nTop-up\n£2.00\n\n\nPlease retain receipt!\n\n\nCard: Payworks VISA\nAccount: **** **** **** 0119\nEntry Mode: Keyed\nVerification: None\n\nAuthorization: 938243\nMerchant ID: **37599\nTerminal ID: ****0063\n\n6da4aff381e8483ebc65ebf4fbb27ec8\n21:39:45: 01/12/2023\n\n\n",
          "receiptData" : {
            "lines" : {
              "MERCHANT_DETAILS_PUBLIC_NAME" : {
                "label" : "Name",
                "value" : "CP Test"
              },
              "MERCHANT_DETAILS_ADDRESS" : {
                "label" : "Address",
                "value" : "Sample Street"
              },
              "MERCHANT_DETAILS_ZIP" : {
                "label" : "Zip",
                "value" : "UB3 2EA"
              },
              "MERCHANT_DETAILS_CITY" : {
                "label" : "City",
                "value" : "London"
              },
              "MERCHANT_DETAILS_COUNTRY" : {
                "label" : "Country",
                "value" : "United Kingdom"
              },
              "MERCHANT_DETAILS_CONTACT" : {
                "label" : "Contact",
                "value" : "1234567"
              },
              "MERCHANT_DETAILS_ADDITIONAL_INFORMATION" : {
                "label" : "Additional Information",
                "value" : ""
              },
              "PAYMENT_DETAILS_SCHEME_OR_LABEL" : {
                "label" : "Card",
                "value" : "Payworks VISA"
              },
              "PAYMENT_DETAILS_MASKED_ACCOUNT" : {
                "label" : "Account",
                "value" : "**** **** **** 0119"
              },
              "PAYMENT_DETAILS_SOURCE" : {
                "label" : "Entry Mode",
                "value" : "Keyed"
              },
              "PAYMENT_DETAILS_CUSTOMER_VERIFICATION" : {
                "label" : "Verification",
                "value" : "None"
              },
              "CLEARING_DETAILS_AUTHORIZATION_CODE" : {
                "label" : "Authorization",
                "value" : "938243"
              },
              "CLEARING_DETAILS_MERCHANT_IDENTIFIER" : {
                "label" : "Merchant ID",
                "value" : "**37599"
              },
              "CLEARING_DETAILS_TERMINAL_ID" : {
                "label" : "Terminal ID",
                "value" : "****0063"
              },
              "RECEIPT_TYPE" : {
                "label" : "Receipt Type",
                "value" : "Merchant Receipt"
              },
              "TRANSACTION_TYPE" : {
                "label" : "Type",
                "value" : "Top-up"
              },
              "SUBJECT" : {
                "label" : "Description",
                "value" : ""
              },
              "IDENTIFIER" : {
                "label" : "PWID",
                "value" : "6da4aff381e8483ebc65ebf4fbb27ec8"
              },
              "AMOUNT_AND_CURRENCY" : {
                "label" : "Amount",
                "value" : "£2.00"
              },
              "DATE" : {
                "label" : "Date",
                "value" : "01/12/2023"
              },
              "TIME" : {
                "label" : "Time",
                "value" : "21:39:45"
              },
              "STATUS_TEXT" : {
                "label" : "Information",
                "value" : "Please retain receipt!"
              }
            },
            "signatureLineRequired" : false
          }
        },
        "customerReceipt" : {
          "preformattedReceipt" : "Cardholder Receipt\nCP Test\nSample Street\nUB3 2EA London\nUnited Kingdom\n1234567\n\nTop-up\n£2.00\n\n\nPlease retain receipt!\n\n\nCard: Payworks VISA\nAccount: **** **** **** 0119\nEntry Mode: Keyed\nVerification: None\n\nAuthorization: 938243\nMerchant ID: **37599\nTerminal ID: ****0063\n\n6da4aff381e8483ebc65ebf4fbb27ec8\n21:39:45: 01/12/2023\n\n\n",
          "receiptData" : {
            "lines" : {
              "MERCHANT_DETAILS_PUBLIC_NAME" : {
                "label" : "Name",
                "value" : "CP Test"
              },
              "MERCHANT_DETAILS_ADDRESS" : {
                "label" : "Address",
                "value" : "Sample Street"
              },
              "MERCHANT_DETAILS_ZIP" : {
                "label" : "Zip",
                "value" : "UB3 2EA"
              },
              "MERCHANT_DETAILS_CITY" : {
                "label" : "City",
                "value" : "London"
              },
              "MERCHANT_DETAILS_COUNTRY" : {
                "label" : "Country",
                "value" : "United Kingdom"
              },
              "MERCHANT_DETAILS_CONTACT" : {
                "label" : "Contact",
                "value" : "1234567"
              },
              "MERCHANT_DETAILS_ADDITIONAL_INFORMATION" : {
                "label" : "Additional Information",
                "value" : ""
              },
              "PAYMENT_DETAILS_SCHEME_OR_LABEL" : {
                "label" : "Card",
                "value" : "Payworks VISA"
              },
              "PAYMENT_DETAILS_MASKED_ACCOUNT" : {
                "label" : "Account",
                "value" : "**** **** **** 0119"
              },
              "PAYMENT_DETAILS_SOURCE" : {
                "label" : "Entry Mode",
                "value" : "Keyed"
              },
              "PAYMENT_DETAILS_CUSTOMER_VERIFICATION" : {
                "label" : "Verification",
                "value" : "None"
              },
              "CLEARING_DETAILS_AUTHORIZATION_CODE" : {
                "label" : "Authorization",
                "value" : "938243"
              },
              "CLEARING_DETAILS_MERCHANT_IDENTIFIER" : {
                "label" : "Merchant ID",
                "value" : "**37599"
              },
              "CLEARING_DETAILS_TERMINAL_ID" : {
                "label" : "Terminal ID",
                "value" : "****0063"
              },
              "RECEIPT_TYPE" : {
                "label" : "Receipt Type",
                "value" : "Cardholder Receipt"
              },
              "TRANSACTION_TYPE" : {
                "label" : "Type",
                "value" : "Top-up"
              },
              "SUBJECT" : {
                "label" : "Description",
                "value" : ""
              },
              "IDENTIFIER" : {
                "label" : "PWID",
                "value" : "6da4aff381e8483ebc65ebf4fbb27ec8"
              },
              "AMOUNT_AND_CURRENCY" : {
                "label" : "Amount",
                "value" : "£2.00"
              },
              "DATE" : {
                "label" : "Date",
                "value" : "01/12/2023"
              },
              "TIME" : {
                "label" : "Time",
                "value" : "21:39:45"
              },
              "STATUS_TEXT" : {
                "label" : "Information",
                "value" : "Please retain receipt!"
              }
            },
            "signatureLineRequired" : false
          }
        }
      }
}
```

Response to an Unsuccessful Request  
When the request is unsuccessful, you receive an error response with details.

```
{
      "type": "ErrorResponse",
      "message": "Error message to display.",
      "developerDescription": "Detailed description of error."
}
```

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