McD app does not post txn until you arrive at location and tap check in (GPS "enforced"; if you don't send a reasonable location to the backend it will tell you

McD app does not post txn until you arrive at location and tap check in (GPS "enforced"; if you don't send a reasonable location to the backend it will tell you to just show your phone to a cashier and fail it) that being said - this is probably irrelevant, because you don't actually need to place an order. mcflurries will show up as not available / disabled if the restaurant is not accepting ice cream orders (to disallow you from adding to cart on the official app). you just poll for snack/side items available at location, nearly a single call. you do not need to place an order, and you do not need to draft an order, or preauth. it's just viewing the menu