Caldera Forms Paypal express process, send an email when a user cancels a Paypal express payment

cf-paypal-canceled-email.php

<?php
add_action( 'caldera_forms_redirect_preprocess', function( $url, $form, $process_id ){

        //Change the Form ID
    if( $form['ID'] === 'CF5a5e8452c6f82' ) {
        
        //Set the recipient the sbuject and the message
        $recipient = '[email protected]';
        $subject = 'My Email Subject';
        $message = 'My Email content';

        global $transdata;
        $form['mailer']['recipients'] = $recipient;
        $form['mailer']['email_subject'] = $subject;
        $form['mailer']['email_message'] = $message;

            if(  $transdata['type'] === 'error' && $transdata['note'] === 'Transaction has been canceled' ) {
                Caldera_Forms_Save_Final::do_mailer( $form, null, $transdata['data'] );
            }
    }
}, 10, 3);