Setting WooCommerce metrics and KPIs in line with the business objectives and needs are the musts for a WooCommerce store. Gauging various aspects of the website like add to cart, conversion rate, shopping cart abandonment rate, revenue per visitor etc. can be used to make informed decisions and take necessary actions. There are a number of metrics but you may not need all of them. You can choose and set only a few of them as KPIs that suits your business needs and purpose.