With YITH WooCommerce Checkout Manager you an customize your checkout page by adding, editing and removing fields.
Thanks to this integration, the custom fields created by the admin with YITH Checkout Manager will show in vendors’ suborders too.
Make sure you install and activate both plugins and you’re ready to go, no other action is required from your side.
For further information about YITH Checkout Manager settings, please refer to the official documentation.