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The QR code identifies the "Tent" it came from, likely a name for the Point Of Sale area.

It's #38
There's a 38 written right above that, so it kinda makes sense.

Real life isn't terribly dramatic most of the time.
It probably means something to the stores APP.

Most tracking that involved QR is borderline retarded stuff to assist the mongoloids that engineers expect to be working there.
Something like, they get this xyz thing wrong 90% of the time, lets just use a QR code to automate that in the reporting.

99% of the time, the problem is a retard human sticking it's hands in.
Solve for X, and you have my condolences.

protip: the solution is to remove the human