Possibility of configuring rules or use ERP logic/calendar for requested delivery date picker during checkout
It should be possible to configure rules for the date picker of the requested delivery date field during checkout, so that a shop owner can define that delivery in the weekend (eg. on Sunday) or the next day is not possible by default.
A very nice integration feature would be that the ERP calendar of deliveries for that specific customer is retrieved and only relevant dates are available to be selected. Eg, the customer can only select Tuesdays or Thursdays, if that is the setup on the customer card in ERP.