Post Office AR and Sedex Checker Digit

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Someone knows the formula to generate the order checker digit of the post office, I have already contacted them, but it is 3 working days to give an answer, and unfortunately I have to finish the system before this.

I have a lot of labels ranging from JO754533210BR to JO754543210BR, but I was informed that the last 3 characters are check digits, BR is quiet, because only orders sent from Brazil now the last number JO75453321 0 BR is the problem, for being a digit checker.

If anyone has an example or logic, I’d appreciate it!

php post-office
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    Have you tried any of the traditional algorithms (module 11 and module 10)? https://pt.wikipedia.org/wiki/D%C3%Adgito_verifier

  • Thank you! , sorry, if it is not within the parameters, more and that is a somewhat complicated issue, and I believe that some users can look for this same formula in the future

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Friend checking on the internet I managed to find the manual of the mail, where it informs how to calculate the code verifier, check there page 51

Page 51 | 02 - Algorithmic Digit Checker Generation

Link to the Postal Manual downloads

I hope I contributed.

  • @cybelacs - sorry for the delay, I ended up finding this manual too, and implanted it for the client, yesterday I finished the training and it worked all right, thank you very much for the help, the cat jump in this digit and are the multipliers multipliers = {8, 6, 4, 2, 3, 5, 9, 7}; Thank you very much!!

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