In order to fully complete your shipping set up in your portal, you must add the "postal code" to your assigned warehouses in your inventory settings. This way, our system may automatically calculate the shipping cost from a specific warehouse location to the selected destination of the order.
As an admin user, you will have the ability to make this setting from the INVENTORY SETTINGS of the admin section of NuORDER. ADMIN > SETTINGS > INVENTORY SETTINGS
From there, you may enter in the different postal code for the different assigned warehouses in your portal.
When all of your shipping information are set up properly on your portal, then you will be able to proceed with your shipment selection in your working order before submitting.