NEW YORK – Business Insider reports this week that iPhone 6 users are hitting upon a problem when trying to pay for burgers in McDonald's using the new Apple Pay mobile payments app: Staff don't know how to accept the payment.

Numerous users of online Apple forums have been complaining that asking McDonald's staff whether they take Apple Pay causes delays in their order because workers simply don't know what it is, and most often they end up paying by cash or credit, as usual.  However, savvy iPhone 6 users have come up with an end-run around untrained cashiers: asking to pay with a credit card, and then secretly using Apple Pay without telling the cashier.

This lack of training could become a problem for Apple if major retailers don't educate their staff on the frontlines about how to use Apple Pay. The whole point of the system is to make paying for things simpler and faster. If Apple Pay is causing delays in lines at the checkout, or if retail employees don't know what it is, then people could stop using it and businesses would be less incented to accept it.

Keep an eye out for next month’s issue of NACS Magazine, featuring a cover article on the new payment system.