This hook runs when a transaction is completed successfully for the PayPal Standard Add-on and can be used to fire actions dependent on a successful PayPal transaction.


add_action( 'gform_paypal_fulfillment', 'your_function_name', 10, 4 );


  • $entry Entry Object

    The entry used to generate the PayPal transaction.

  • $feed Feed Object

    The PayPal Feed configuration data used to generate the order.

  • $transaction_id string

    The transaction ID returned by PayPal.

  • $amount float

    The amount of the transaction returned by PayPal.


Below is a fictional example of adding a successful order to a third party order fulfillment system.

add_action( 'gform_paypal_fulfillment', 'process_order', 10, 4 );
function process_order( $entry, $feed, $transaction_id, $amount ) {

    // get first and last name from $entry
    $order_id = rgar( $entry, 'id' );
    $first_name = rgar( $entry, '2.3' );
    $last_name = rgar( $entry, '2.6' );

    // use fictional function to add order to fictional My Third Party application
    mtp_add_order( $transaction_id, $amount, $order_id, $first_name, $last_name );



This code should be placed in the functions.php file of your active theme.

Source Code

do_action( 'gform_paypal_fulfillment', $entry, $feed, $transaction_id, $amount )

This hook is located in GFPayPal::fulfill_order() in class-gf-paypal.php.