paypal payments pro has 2 different payment methods:
1- PayPal Direct Payments - Customer enters credit card information on the checkout page
2- PayPal Express Checkout - customer is directed to the paypal site and logs in
depending on which payment method is used, there are different binding groups to add to the bindings panel through the Local Checkout binding option.
another way to get the paypal request and response it to add the following code to the page:
<?php
@session_start();
echo "<p>Direct Pay: <br />";
echo "Full Request: ".(isset($_SESSION["PP_DirectPayment_postedValues"])?htmlentities($_SESSION["PP_DirectPayment_postedValues"]):"n/a")."<br />";
echo "Full Response: ".(isset($_SESSION["PP_DirectPayment"])?htmlentities($_SESSION["PP_DirectPayment"]):"n/a")."<br /></p>";
echo "<p>Express Authorize <br />";
echo "Full Request: ".(isset($_SESSION["ECO_Auth_Request"])?htmlentities($_SESSION["ECO_Auth_Request"]):"n/a")."<br />";
echo "Full Response: ".(isset($_SESSION["ECO_Auth_Result"])?htmlentities($_SESSION["ECO_Auth_Result"]):"n/a")."<br />";
echo "<p>Express Process: <br />";
echo "Full Request: ".(isset($_SESSION["ECO_Process_Request"])?htmlentities($_SESSION["ECO_Process_Request"]):"n/a")."<br />";
echo "Full Response: ".(isset($_SESSION["ECO_Process_Result"])?htmlentities($_SESSION["ECO_Process_Result"]):"n/a")."<br /></p>";
?>
NOTE: The full request and full response will contain sensitive information that should be removed before posting here.