Ask for postal codes
As in Recreatex, it is possible to ask for the postal code of a customer as part of the payment process. First, the country is asked and then the postal code.
This option is set in Recreatex on the specific point of sales itself. Go to Sales > Settings > Points of sale and select your POS. In the window Modify point of sale go to the tab Ask customer origin and tick the box Ask for city of customer.
The possible countries are set in General > Settings > Countries. When selecting a country from the country list it should be turned on for the vending machine in the tab Self-service kiosk: Tick the box in front of Show in self-service kiosk. There is also the possibility to ask for a postal code or to choose a general postal code for that country.