I am using Drupal Commerce and Commerce Coupon Percentage. It works great for most products. However, I have a product priced at $0 and the price is then altered through rules which changes the line item total for that order.
Because the product is priced at $0, the percentage does not apply. Therefore, I am wondering if there is a way to apply the percentage coupon to the entire order rather than the product price. Any thoughts on how to approach this?