How to add class based fee rules
Product shipping classes can be used to group products of similar type and used by some shipping methods, such as Flat Rate Shipping, to provide different rates to different classes of product.
Shipping classes are used to group products – they are not used directly to offer shipping rates to customers. To set up shipping rates, configure Shipping Zones, and then add your shipping class costs to a shipping method, like Flat Rate.
This option allows a user to add extra cost based on shipping classes. It provides all shipping classes which are already used for the product. It displays all shipping classes list with a text box to add cost. The shipping class cost will be added to the shipping charge.
How to Create Shipping Class
Screenshot 1: (Admin: Create shipping class)
Step - 2: Click the Add Shipping Class button beneath the table. A new row appears.
Screenshot 2: (Admin: Add new shipping class button)
Screenshot 3: (Admin: Select shipping class in a single product)
Screenshot 4: (Admin: Select shipping in a variable product)
Step 4: Update to save changes.
Screenshot 5: (Admin: Shipping class based extra fee rule)
Screenshot 6: (Extra Fees front side view)