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 FileMaker Pro Custom Functions

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  Average rating: 4.3  (43 votes)
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Jeremy Bante,

Creates a universally unique identifier suitable for use as a primary key in FileMaker number fields.

Sample Input:
Sample Output:

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed


Creates a numeric universally unique identifier suitable for use as a primary key in FileMaker number fields. The UUID is composed almost entirely of random digits. This may be useful in some situations to preserve the anonymity of the conditions that generated the UUID. The values returned by this and related functions have a one-to-one correspondence with UUIDs following the RFC 4122 standard - all values in the format generated by this function can be converted to RFC 4122 canonical form, and visa-versa.

For most practical purposes, FileMaker will ignore the text delimiters in values returned by this function.

These functions generates UUIDs that are meaningfully sortable. Values sort by version, then creation order, then node (creation device).

This function creates a (decimal) numeric UUID, which has performance advantages for file size and find speed in FileMaker. The value can be converted to RFC 4122 canonical form (hexadecimal) with the UUIDGetAsRFC4122 function.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


I wonder how I could recreate h in FileMaker pro 11?

Amy gill, Nuneaton
December 25, 2011 9:33am

I really enjoy this cf. Thank you Jeremy for creating and sharing it.

Brian Ginn, Louisville
June 13, 2012 7:10pm

Thank you!

David, Moscow
September 16, 2012 1:42am


Reinier, Rotterdam
November 04, 2012 10:18pm

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