Users can manually enter a coupon code, refresh the Cart and see their discount apply… or you can do that automatically (or “programmatically” as we say in the dark web) when a user adds a product to the WooCommerce Cart 🙂
All you’ve got to do is creating a coupon, and then a PHP function will do the whole work. Automation is the best thing in the world!
Continue reading WooCommerce: Apply Coupon Programmatically if Product @ Cart