Also I can't seem to get this hook to work.
add_filter('cred_success_redirect_707', 'custom_redirect_for_form_with_id_707',10,3); function custom_redirect_for_form_with_id_707($url, $post_id, $form_data) { if ($form_data['id']==707) return 'https://myurlishere.com'; return $url; }