Brian Dunning's FileMaker Custom Functions

CheckDigit_swissUID ( swissUID )

Generates the check digit for swiss UID / IDE / VAT number

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Olivier Caulet   Olivier Caulet - Show more from this author
Helixir
http://www.caulet.ch/helixir

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  Sample input:
CheckDigit_swissUID ( CHE-123.456.788 )
CheckDigit_swissUID ( 10932255 )
  Sample output:
8
1

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

The swiss UID is composed of 9 numbers, randomly generated and contains no information about the enterprise (anonymous identifier). The Swiss origin of the number is indicated by the "CHE" prefix, which is the three-letter country code of the ISO 3166-1 standard. The last number refers to the check digit (C) determined by the Modulo 11 standard calculation method.
This function generates the check digit for swiss UID / IDE / VAT number

 

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