MC4WP_API_v3::get_ecommerce_store_order PHP Method

    public function get_ecommerce_store_order($store_id, $order_id, array $args = array())
    {
        $resource = sprintf('/ecommerce/stores/%s/orders/%s', $store_id, $order_id);
        return $this->client->get($resource, $args);
    }