This isn't something people are asking for ? Hard to believe considering the only upside of Commerce Advanced is the advanced cart feature, which is very poorly designed and controlled. In fact, shopify gives full visibility to abandoned check out emails and even allows to copy/paste and contact these customers manually. They wouldn't have gone through the trouble, if this wasn't a must-have. Very much regret my SS account now, and switching to Shopify right before next billing period !