Refer A Friend plugin will create a unique url for each of your WooCommerce members, that will be visible on their account page. Members can use that link to link to your products, and every time someone purchases something through their link, you will reward them with a coupon. Coupons are connected with WooCoupons so you can define value of each coupon, type, minimum order and can it be combined with other woo coupons. After order is marked as complete, coupon is sent to a person who referred you a customers. Every time referral receives a coupon, it will be shown in his account page and only he can use it. As with our other plugins, refer a friend is coded with best practice, it is super light and will not slow down your site.
Coupons are created only once order is marked as complete, to prevent abuse.