Yes, you can do that with a few steps
1. Log in to your account in Knawat and you will be redirected to Dashboard
2. Click on Sales Orders
3. Full the required fields, and from the Products section select the products you want with the size of each one of them
4. While you save the shipping fee will be calculated automatically, for shipping price Click here
5. It takes few moments to be shown in Sales Order Page
6-
Send your store invoice in a PDF format containing your logo/ selling price to [email protected] to allow Knawat to include your store invoice to your created order