To retrieve a shipping quote, Smart Send needs to know the dimensions and weight of the items being shipped. You’ll need to provide this for products that will be shipped – just go to the product edit page, shipping tab:
You can also set the shipping class individually – this will override the setting in the Smart Send Options screen.
For purposes of transport assurance, it’s also a good idea to enter the wholesale product cost (general tab)
This is a field added by the Smart Send plugin – it does not appear on the product general tab normally.