Hi nobby
Sorry for the late response I was on vacation. I would try this for
your problem
Private Sub Worksheet_Calculate()
max_val=0
For Each n In Range("D27:I27")
If IsNumeric(n) Then
max_val = n + max_val
End If
Next n
If Range("o16").Value max_val Then
MsgBox "too high - do something!"
End If
End Sub
--
jetted
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