@craignair @Feedback2016 You are both correct, to manually process credit cards from other countries, you can either enter the customers postal code by using both numbers and letters to accurately enter that information. If you are having trouble processing the cards using the accurate postal code, you can try entering 00000 in place of their zip code.
If neither of those are working, I recommend having your customer double check all of their other information as the expiration date and CVV need to be entered correctly to accept that card using Square.
As a side note, though you can manually process international credit cards, you need to be physically located within the the country that you created your account in, either the U.S. or Canada, to process cards.
