1. Introduction

When accepting American Express payments via the acquirer Alpha Card you can send the following additional invoice information along with the order details.

  • Invoice reference
  • Invoice date to appear in bank files
  • Total invoice amount (VAT excl.)
  • Total invoice VAT amount

Please note that there might be cases of acquirers not supporting these fields on their side.

2. Transmitting the Invoice Information

You can send the additional invoice information along via Hosted Payment Page, e-Terminal, Batch and DirectLink.

2.1 Hosted Payment Page

The following hidden fields are used to transmit the additional invoice information to our system via Hosted Payment Page:

<input type="hidden" name="INVORDERID" value="">
<input type="hidden" name="INVDATE" value="">
<input type="hidden" name="AMOUNTHTVA" value="">
<input type="hidden" name="AMOUNTTVA" value="">

Field Explanation
INVORDERID Invoice reference
INVDATE Invoice date to appear in bank files
AMOUNTHTVA Total invoice amount (VAT excl.) (* 100 to avoid decimals)
AMOUNTTVA Total invoice VAT amount (* 100 to avoid decimals)

The information will be displayed on the Hosted Payment Page screen

For further information, go to Hosted Payment Page.

AmEx Alphacard via e-Commerce

The following parameters are used to transmit the additional invoice information to our system via DirectLink:

Field Explanation
INVORDERID Invoice reference
INVDATE Invoice date to appear in bank files
AMOUNTHTVA Total invoice amount (VAT excl.) (* 100 to avoid decimals)
AMOUNTTVA Total invoice VAT amount (* 100 to avoid decimals)

For further information, go to DirectLink.

2.3 Batch

The following fields are used to transmit the additional invoice information to our system via Batch:

Field Content Field number
Invoice number 6
Invoice date to appear in bank files 28
Total Invoice amount (VAT excl.) (* 100 to avoid decimals) 32
Total Invoice VAT amount (* 100 to avoid decimals) 33

For further information, go to Batch.

2.4 e-Terminal

The additional invoice information can be entered in the e-Terminal transaction voucher.

AmEx Alphacard via e-Terminal

For further information, go to e-Terminal.

3. Field specifications

Following are the technical specifications for the additional fields:

Data Format Max. Length
Invoice number AN 15 (Amex:12)
Invoice date to appear in bank files MM/DD/YY 8
Total Invoice amount (VAT excl.) N 12
Total Invoice VAT amount N 12

4. Transaction feedback

The additional invoice information will be visible in the order details in the back office and will also be shown on the customer’s bank statement.

FAQs

The time to activate a payment method depends on the following factors:

  • It generally takes the acquirer or bank about a week to complete your affiliation. If you already have an affiliation, the activation takes a few days.
  • Some payment methods require additional checks before they can be activated, e.g. in case of 3-D Secure, which is requested directly at VISA or MasterCard (and not at the acquirer). 

With Ingenico Collect, you can activate several payment methods in one go.


An acquirer is a financial institution that processes payments from certain credit and debit cards. The acquirer is responsible for the financial part of transaction processing and Ingenico is responsible for the technical part. In other words, without an acquirer the money will not be transferred to your bank account.

For every online payment method you want to add, you need an acceptance contract with an acquirer. If you’d like advice on which acquirer would be best suited for you and your region, please contact our Sales team at sales.ecom@ingenico.com. If you know which acquirer you want to work with, you can simply select them from the drown down list when adding a payment method in your account. 

But why not let us take care of it for you? Ingenico Full Service allows you to activate many local payment methods, all at once and in several different countries – with one single contract. If you trade internationally, it could be the ideal way to accept payments from all across Europe. It saves you time-consuming administration and because you can offer more payment methods, it can also increase your revenues. 

Find out more about Ingenico Full Service here and by writing to sales.ecom@ingenico.com and asking for contract information.

Sometimes it happens that an affiliation number has been put inactive on the side of the acquirer. We suggest you contact your acquirer for this.