If you do not want fees to get applied to all the products added to the cart or shopping carts, you can add conditions.

Conditions can be based on 17 different product and cart attributes:

• Product title;
• Product type;
• Product vendor;
• Product price;
• Product tag;
• Product SKU;
• Product;
• Product variant;
• Product collection;
• Customer tag;
• Market;
• Item weight;
• Quantity in the cart;
• Item price in the cart;
• Item quantity in the cart;
• Total cart weight;
• Total cart price.

For most conditions based on product attributes, the fields are auto-populated. I.e. there is no need to type the value name, you can select it from the list that is retrieved from the Shopify backend.