Which innovative retail payment technology was first introduced by airlines in 2018 that allowed passengers to make in-flight purchases using their personal devices without internet connectivity?

The intersection of transportation and retail has created innovative shopping experiences for travelers. From airport duty-free zones to train station boutiques, transportation hubs have become significant retail environments. This poll tests your knowledge about a groundbreaking retail payment technology that transformed how passengers shop while in transit, changing consumer behavior and creating new revenue streams for transportation companies.

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Cached Payment Processing (CPP)
Transit Purchase Authorization (TPA)
Offline Digital Wallet (ODW)
Satellite-Enabled Transaction System (SETS)