If you are wanting to quickly assign products to a shipping class in WooCommerce, you can assign them to products in bulk.
- Click on WooComerce, then Products.
- Select the products that you want to assign by ticking the checkbox to the left of each product name.
- Select Edit from the Bulk actions dropdown.
- Click Apply.
- Select your shipping class from the Shipping class dropdown.
- Click Update to save your settings.




