Dears,
To have an outstanding E-Commerce features that can make us ahead and differentiated in our apps and also it is a request for the clients, we need to have, as part of the feature, an option that allow the business to send auto (we can have time trigger) reminders for customers about their orders when it is near to be delivered.
It is also very important and powerful to allow the system to send auto reminders for abandoned carts which will enhance and motivate the customer to complete his shopping or remove the items from his own cart if he is not welling to purchase anymore.
Best Regards