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 FileMaker Pro Custom Functions

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SSNumb ( number )

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  Average rating: 3.9  (34 votes)
  Discuss this Custom Function

Mike Williamson, Custom Database Design

Formats Social Security Number

Sample Input:
SSNumb ( 123456789 )
Sample Output:

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


Formats Social Security numbers in the format xxx-xx-xxxx. Results displays in red if improper number of numerical digits.

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


Unable to use the above calc code since it is for FM Advanced only. I am using "regular" FM 9.3. (Tried it... it won't work)

Do you have a calc code for auto formating SS numbers that will work with my version of FMP ???

Much appreciate any help you may offer.

Barry Sommers

Barry Sommers, Staten Island NY
April 15, 2009 10:41am

You won't be able to make custom functions without FM Pro Advanced, but you can make a calculated field with the some formula:

NumOnly= Filter(number; "0123456789");

SSNumb = Left(NumOnly;3) &"-"
& Middle(NumOnly;4;2) &"-"
& Middle(NumOnly;6;4)

John Leyman, Loma Linda, CA
September 20, 2011 2:39pm

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

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Answer 4 + 4 =
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