I have created a coupon that functions like a buy one get one free product on the site except the free product must be chosen by the customer.
I included product variants among the list of choices for them to pick but I noticed that the product selection for those product does not display its product variant attribute name.
1) copy wp-content/plugins/woocommerce-auto-added-coupons-pro/templates/coupon-select-free-product.php to:
wp-content/themes/YOUR-CHILD-THEME/woocommerce-auto-added-coupons/coupon-select-free-product.php
2) In the copied file find $product->get_title() and replace with $product->get_name()