I want to do something when paid product buy with 100% free coupon as of now no entry made in payment log but I think entry should be there with 0 price and applied coupon, this is how all e-commerce WordPress plugin works like WooCommerce and Easy Digital Downloads.
Also its really great if you add hook for checkout at the time of 100% free coupon applied,
We need to know who uses which free coupons.
Thank you for this suggestion! This feature request or some aspect of the functionality suggested is currently being reviewed for possible inclusion in a future update. If there is additional information, this post will be updated to reflect it.