If you see significantly more product value being added to the cart than what is being purchased, consider adding a Cart Abandonment Audience to a Remarketing Campaign to try to get those hot leads back. Use Display Ads so that any other websites they visit, like competitor sites, they will see your ad saying, “Finish your checkout and you’ll get 10% off with coupon code x”. (***Make sure to only add new audiences to the Remarketing Campaign after the campaign has proven that the ROAS is there or else you will simply be putting budget & effort into something that converts at a negative net profit.)