Hello, I would like to setup an automated recurring payment for a defined period of time. The idea is to allow customers to pay off a balance over a time period of their choosing (selecting from a dropdown menu of options). For instance, to pay off $900 over 3 months, the form calculates the monthly payment amount of $900/3 = $300 and submits this to Authorize.net .
The API would appear to allow this through a combination of paymentSchedule, length, start/stop date etc.
Do you have any advice regarding the excection of this plan? My current thought was to edit the authorizeARB.php file and add to this statement:
$this->_request_payload = ($refId ? "<refId>$refId</refId>" : "");
Is there a better way to go about this?