Upgrade to Hikamarket

-- HikaShop version -- : 4.0.2
-- Joomla version -- : 3.9.2
-- PHP version -- : 7.1

Hello, I am using custom plugins inside of hikashop to connect to my distributor. The custom plugins send the order directly to my distributor via their API. It also checks the stock level and brings in shipping charges. My question is that i want to use Hikamarket also for my customers to be able to sell on my site. Will Hikamarket interrupt the api from my store? Are the vendor sales separate from my sales in regards to shipping, stock levels, payment plugins, etc? Please let me know if you need more info...thanks and I look forward to your reply as I am hoping to upgrade to hickamarket soon. thanks

below is a line of code from my plugin. i think it shows if order type is "sale" . what is a vendors order type in hikamarket?

 public function onBeforeOrderCreate(&$order, &$do)
    {
        if (empty($order) || empty($order->order_type) || $order->order_type != 'sale' || !isset($order->order_full_price)) {
            return;
        }