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 FileMaker Pro Custom Functions

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sumreps ( rfield ; from ; to )

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  Average rating: 4.6  (26 votes)
  Discuss this Custom Function

Oliver Reid, FGM, LLC

Sums repeating field rep values from rep `from` to `to`

Sample Input:

where field is (1,2,3,4,5,6)
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


Handy function to sum a subset of repeating field reps

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


This is exactly what I was looking for. However, the function seemed to be broken until I changed 'rfield' to 'GetFieldName ( rfield )' ... as follows:

Let ( [
nn = If ( to ≠ ""; to - from + 1 ; 200) ;
xx = Evaluate( "MiddleValues (List (" & GetFieldName ( rfield ) & ");" & from & ";" & nn &")" );
lln = Length (xx) - 1 ;
uu = Left (xx ; lln)
] ;
Evaluate( Substitute(uu ;¶;"+")) )

Matthew Fero, Seattle
December 31, 2012 10:38am

rfield should be inserted in quotes actually: I have added a note to clarify that.

Oliver, Stamford Ct
December 31, 2012 10:54am

Does not work if some of the repetitions are empty

Martin, Switzerland
May 20, 2013 4:33am

That's true Martin. I will fix when I figure that out.
One could use as an argument that is the Max of the intended rep field and another that contains only 0's

Oliver, CT
May 20, 2013 7:19am

Dosent work at all!

Jim, NY
October 19, 2014 10:01pm

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