in reply to Re: Merging multiple variations of a serial number
in thread Merging multiple variations of a serial number

Thanks for your reply

Valid year range is 18 - 22

  • Comment on Re^2: Merging multiple variations of a serial number

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Re^3: Merging multiple variations of a serial number
by hippo (Archbishop) on Jul 28, 2022 at 15:29 UTC

    It's OK I think if the leading digit of the 13 is a 1 or 3-9, but if it's a 2 then you have an issue. What does a 13-digit number starting 222 mean? I don't see how you can tell if that's MYY or YYX where X is the start of the core serial. Unless you have some other way to know?


    🦛

      > Unless you have some other way to know?

      well the check digit at the end of 13 without leading month could give a strong indication, but the OP didn't tell us the actual check algorithm.

      edit

      And normally this kind of nonsense happens because someone changes the convention at a certain time.

      Like check digit introduced after March 2019, etc ...

      Cheers Rolf
      (addicted to the Perl Programming Language :)
      Wikisyntax for the Monastery