I came across this very same issue recently and studied this post. My problem is similar to many others, specifically that our host is Siteground. In my case, we migrated a client account from Siteground Cloud to Siteground GoGeek shared hosting and all of a sudden started to get the Payment Declined message. After a day or two of looking into configurations, settings, SSL and a host of other things, I decided to change some code in the core, PayPal modules and this has solved the problem. Below is description of my problem, obersvations and how I solved the problem;
Problem:
1) Receiving "Payment Declined" message during onsite checkout (using PayPal Advanced)
2) This problem has never occurred before
3) Payment was indeed being received in PayPal Manager despite the transaction being cancelled in Magento
4) Looked into potential issues with IPN, no problems with IPN's
5) Checked SSL certificates for potential issue with changes to the server and IP address, no problems with SSL
Resolution:
1) Changed code in app/code/core/Mage/Paypal/controllers/payflowadvancedcontrollers.php (see code below - replaced code in else branch)
2) Tested valid CC transaction and no payment declined message
3) Tested with invalid CC transaction (random CC number) and received prompt that transaction failed
4) Order was incremented to "Processing" successfully in the order section of Magento admin
*** I am fearful of changing core code but this was a last resort tweak to get the process working. Many rounds of testing indicate it's working as expected HOWEVER I am anticipating some kind of future issue(s), not sure what to expect.
public function returnUrlAction()
{
$redirectBlock = $this->_getIframeBlock()
->setTemplate('paypal/payflowadvanced/redirect.phtml');
$session = $this->_getCheckout();
if ($session->getLastRealOrderId()) {
$order = Mage::getModel('sales/order')->loadByIncrementId($session->getLastRealOrderId());
if ($order && $order->getIncrementId() == $session->getLastRealOrderId()) {
$allowedOrderStates = array(
Mage_Sales_Model_Order::STATE_PROCESSING,
Mage_Sales_Model_Order::STATE_COMPLETE
);
if (in_array($order->getState(), $allowedOrderStates)) {
$session->unsLastRealOrderId();
$redirectBlock->setGotoSuccessPage(true);
} else {
$session->unsLastRealOrderId();
$redirectBlock->setGotoSuccessPage(true);
/**$gotoSection = $this->_cancelPayment(strval($this->getRequest()->getParam('RESPMSG')));
$redirectBlock->setGotoSection($gotoSection);
$redirectBlock->setErrorMsg($this->__('Payment has been declined. Please try again.'));
$redirectBlock->setErrorMsg($this->__('Payment has been declined. Please try again. - Order State: '.$order->getState()));*/
}
}
}
