There is no email confirmation visible why ? 

So this feature does not work : " Add Delivery Date, Delivery Time Slots and Shipment Arrival Comments to order confirmation emails. "

I can not add variables because I do not see them


To add these variants in the confirmation email, please create a new email template in the backend.Path: Marketing -> Email Templates -> Add New Template In New Template pageview, please select and load "New Order for Guest" template. Then clicking in "Insert variants" button and choose these variants from the list displayed.For more details, please see the video here:

For more details, please have a look at our User Guide