Woocommerce follow up emails are a powerful tool. They clearly communicate to your customers that you care about your relationship — and in turn, they build trust. And when done right, they undoubtedly lead to higher retention rates.
By spending a little more time evaluting your eCommerce sales campaigns (including your upcoming Christmas sale), you can better understand your customers' purchasing decisions which can result in big gains for your store.
As a WooCommerce store owner, you may find yourself in a situation where you want to link to directly to a product variation in WooCommerce, rather than the generic variation page. This isn't something that is clearly documented in the WooCommerde docs, but it's much easier to do than you think!