Automatically fulfill Shopify order to Knawat:
1-From your Shopify admin, go to setting > checkout
2-Find the Order processing section.
3-Under the heading After an order has been paid, select Automatically fulfill the order's line items. You can also select Notify customers of their shipment.
Manual fullfill Shopify orders:
1-From your Shopify admin, go to order that you want that you wants to goes to Knawat
2-click on the request fulfillmen