How is the authorization code generated on the receipt when paying with a plastic card?

How is the authorization code generated on the receipt when paying with a plastic card?

Author: tutankhamun, 2015-09-14

1 answers

It is generated and sent in response to the transaction by the bank that issued the card. Usually in the nnnnnnABC format, where

  • A - result of checking the address via AVS (Yes/No/X)
  • B - result of checking ZIP via AVS (Yes/No/X)
  • C-result of checking CVV2 (Yes/No/X)

For Russian cards, the result is likely to be of the form 123456XXY. For offline payments-just 6 digits.

 1
Author: PashaPash, 2015-09-14 20:30:10