Submit a form and save data to custom post type in woocommerce

I am wondering how can I send the data submit in WS FORM to a tab in WooCommerce Frontend Manager the tab have his own php but the site is multivendor.

wsform gave this action config
im triyng using Push to Custom Endpoint: http://localhost/vendor/tabpage.php and requested method:post

<?php

$vendor_id = $store_user->get_id();
$$wcfm_modified_endpoints= get_user_meta( $vendor_id, ‘wcfm_endpoints’, true );
?>

echo do_shortcode( ‘(wcfm_store_info data=”ws_form id=”2″)’ );