Extra form fields can be used to collect information from customers. The extra fields appear in the payment page when customers check out. The extra fields require an entry in order to complete payment.
This feature only works for payment options that use an SSL connection to your local orderform.php script to collect credit card information. It does not work for PayPal, Authorize.net SIM or any of the other payment options where the payment form is hosted on the payment processor's server. Payment options that support extra fields are listed with an X under "Orderform" in the payment gateway cross reference chart.
Data that is entered in the extra fields is saved and can be viewed for each customer.
It appears in each customer's profile under Additional information.
The data can be included in receipts by inserting the %customer_info% token into the receipt template.