I have a Crystal Report with the usual group headers/footers & detail section.

On my detail section I have a ‘running total’ it is a count function and it counts the number of lines based on a Unique Reference Number

But my problem is that I want to get the Maximum of this count.
So, if my detail section has a count of 1,2,3,4,5,6,7 detail lines
I want my maximum to return the result 7

The issue with Crystal is that you cannot run a Maximum formula on a count formula
I have converted my count to a string and a number, and still unable to get this result.

Would anyone have any ideas?

Thanks in advanve
Paullyie