Hey - I'm pretty new to this, so this may be a stupid question. I have followed the instructions I found here:
www.rsjoomla.com/support/documentation/r...mpro-and-paypal.html

The only thing I didn't do was create a drop down, because there is only one price I want them to be able to select.

When I do a test of the check out system, I get this message from PayPal:

Invalid Regular period. You must specify valid values for the A3, P3, and T3 parameters for a subscription.

Here is the script I put in... It looks like I filled everything in right? or did I put something in the wrong place? Any help would be much appreciated!




if($_POST[0] != '0')
{
$business = ' This e-mail address is being protected from spambots. You need JavaScript enabled to view it '; //the account the payment is made to
$item_name = str_replace($replace, $with, '{subscription:The Basics}'); //this sets membership name
$currency_code = 'CAD'; //the currency used in the transaction
$a3 = $_POST[25]; //the subscription cost
$p3 = '12'; //the subscription duration
$t3 = 'M'; //the subscription units of duration : M stands for month
$src = '1'; //this defines the subscription as recurring
$no_note = '1';
$notify_url = JURI::root().'index.php?option=com_rsform&formId='.$formId.'&submission='.$SubmissionId;
$url= 'www.paypal.com/cgi-bin/webscr?cmd=_xclic...siness).'&item_name='
.urlencode($item_name).'¤cy_code='.urlencode($currency_code).'&a3='.urlencode($a3).'&p3='.urlencode($p3).'&t3='
.urlencode($t3).'&src='.urlencode($src).'&no_note='.urlencode($no_note).'¬ify_url='.urlencode($notify_url);
$app = JFactory::getApplication();
$app->redirect($url);
exit();
}