AutomateWoo

Ability to send Facebook messages for Abandoned cart, here is a plugin which does it, you can see the demo:

https://www.tychesoftwares.com/store/premium-plugins/woocommerce-abandoned-cart-pro/

Also 1 more plugin is:

https://codecanyon.net/item/cartback-woocommerce-abandoned-cart-remarketing-in-facebook-messenger/20852369

Since Facebook offers almost more than 90% open rates and most people are active on social media, it could be best to retarget customers as well as send them messages on facebook regarding offers and coupon if their cart is abandoned 🙂