How to add shipping charges to a product in your webstore.
Please note: The default setting is "Yes" to charge shipping for a product.
Login to your workspace.
Select “Products” from the left-side menu.
Select the product you want to add shipping charges for.
Scroll to the bottom of the Product Editor page then select edit
Select “Yes” from the “Charge Shipping?” drop down menu.
Select “Save Variation”