Countif Not Working

[dids86]

Hi,

I've created a UniqueID by bringing the values from 3 columns together with the intention of doing a countif on this Unique ID column.

However the countif doesn't look to work, I've attached an image if anyone would be able to advise on how to get this to work please.

Thanks

 

[Fluff]

How about

=SUMPRODUCT(--($E$2:$E$100=E2))

 

[dids86]

Superstar thanks Fluff!

 

[bebo021999]

Excel treats numbers up to 14 digits, from 15th it is 0.
In this sample, you can use COUNTIFS, instead of combination from 3 columns, like this:

=COUNTIFS($B$2:$B$100,B2,$C$2:$C$100,C2,$D$2:$D$100,D2)

 

[Fluff]

Glad we could help & thanks for the feedback.