Format of ARN

[Guest]

Can any one say the meaning of Check sum digit (last number of Application reference number) under GST migration.

[YAGAY andSUN]

A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It is analogous to a binary parity bit used to check for errors in computer-generated data. It consists of one or more digits computed by an algorithm from the other digits (or letters) in the sequence input.

With a check digit, one can detect simple errors in the input of a series of characters (usually digits) such as a single mistyped digit or some permutations of two successive digits.

AI Summary

Check digit ensures GST migration ARNs are validated to detect common input errors and preserve data integrity. A check digit is a single digit computed by an algorithm from the other characters in an Application Reference Number to enable error detection when the ARN is input or transmitted; it detects common input mistakes (such as a mistyped digit or certain adjacent transpositions) and supports validation during manual or automated processing without encoding substantive transactional data.