I don't see how the bank gets that information anyway. It is possible
to do if the CC reader is part of the POS terminal but since I do a
lot of business with small companies that use a stand alone machine, I
know they don't get anything but totals from that. It is just what the
guy types in plus the card swipe or chip read. I have to believe the
system on the other end is also getting the same transaction data from
a POS. Why would they maintain 2 systems? I guess I could call one of
my IBM buddies and ask, assuming any of them are still working.
Maybe Wayne knows.
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I am not an expert on retail systems but my understanding is that
credit card sales are an all or nothing proposition, meaning that
credit card companies can ban the merchant but not the product. The
legal marijuana industry is up against this - banks will just will not
do business with them so all sales are cash. The same thing could
happen to gun stores but not a mass merchandiser like Walmart.
It has been a while so I may not have this correct but I seem to
remember that when I had the guitar shop and set up an account to accept
credit cards, one of the available service options was a record of
specific item sales based on an inventory number or something. I didn't
opt for it and just went for the basic credit card service. It had to
do with tying sales to your inventory control system which I didn't have
or need.
I think a record of taxed and non-taxed items is recorded because it's
used as the basis for monthly state sales tax records and payments.