ORDER HAS BEEN SHIPPED EMAIL
Order has been shipped email can have same data as in order confirmation email, but also contain a tracking code and a title "Your order is now being delivered!" + "Track your shipment to see the delivery status."
ABANDONED CHECKOUT EMAIL
Abandoned checkout email needs to contain items that have been left in the cart. See styling guideline from attached design layouts for desktop/mobile. This email needs to contain a title "We saved your shopping cart for you!" As well as a CTA button "Proceed to checkout"
Important here is to show items that are in the cart, as well as who is shipping those items (see design layout attached).