Update a Transaction

This code steps you through the process of updating an existing transaction (i.e. for tips).

There are three outcomes when processing credit card transactions:

  1. Approved
  2. Declined
  3. Error

'Approved' transactions can be charged against customers' credit cards. 'Declined' transactions can't be charged. As a result, in order to test the process of charging a customer's credit card, you must first pass an odd dollar amount. This returns the transaction with an 'Approved' status. You can then charge the credit card to complete the transaction.

An error could result from a variety of conditions such as missing data, invalid card numbers, and expiration dates provided in invalid formats.

The following sample code calls a routine from our Code Library.
Download BluePay.php
Or, download via GitHub

* BluePay C#.NET Sample code.
* This code sample runs a $3.00 Credit Card Sale transaction
* against a customer using test payment information. If
* approved, a 2nd transaction is run to update the first transaction
* to $5.75, $2.75 more than the original $3.00.
* If using TEST mode, odd dollar amounts will return
* an approval and even dollar amounts will return a decline.

using System;
using BluePayLibrary;

namespace Transactions
    class UpdateTransaction
        public static void Main()
            string accountID = "Merchant's Account ID Here";
            string secretKey = "Merchant's Secret Key Here";
            string mode = "TEST";

            BluePay payment = new BluePay

                firstName: "Bob",
                lastName: "Tester",
                address1: "123 Test St.",
                address2: "Apt #500",
                city: "Testville",
                state: "IL",
                zip: "54321",
                country: "USA",
                phone: "123-123-12345",
                email: "[email protected]"

                ccNumber: "4111111111111111",
                ccExpiration: "1225",
                cvv2: "123"

            // Sale Amount: $3.00
            payment.Sale(amount: "3.00");

            // Makes the API Request with BluePay

            // If transaction was approved..
            if (payment.IsSuccessfulTransaction())
                BluePay paymentUpdate = new BluePay

                // Updates previous sale transaction
                    masterID: payment.GetTransID(), // id of previous transaction to update
                    amount: "5.75" // add $2.75 to original amount

                // Makes the API Request with BluePay

                // Reads the responses from BluePay
                Console.WriteLine("Transaction Status: " + paymentUpdate.GetStatus());
                Console.WriteLine("Transaction ID: " + paymentUpdate.GetTransID());
                Console.WriteLine("Transaction Message: " + paymentUpdate.GetMessage());
                Console.WriteLine("AVS Response: " + paymentUpdate.GetAVS());
                Console.WriteLine("CVV2 Response: " + paymentUpdate.GetCVV2());
                Console.WriteLine("Masked Payment Account: " + paymentUpdate.GetMaskedPaymentAccount());
                Console.WriteLine("Card Type: " + paymentUpdate.GetCardType());
                Console.WriteLine("Authorization Code: " + paymentUpdate.GetAuthCode());
                Console.WriteLine("Error: " + payment.GetMessage());
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