You could have a formula in C2 =IF(A2="no", "Be sure to fill in B2","")

Or you could have event code that popped up a message.

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count 1 Then Exit Sub
If Intersect(Target, Me.Range("A2")) Is Nothing Then Exit Sub
On Error GoTo CleanUp
Application.EnableEvents = False
With Target
If .Value = "no" Then
MsgBox "Please fill in cell B2"
End If
End With
CleanUp:
Application.EnableEvents = True
End Sub

Note......both of these are reminders only and if users choose to ignore the
messages or disable macros.................then what?


Gord Dibben MS Excel MVP

On Mon, 10 Jul 2006 07:59:02 -0700, cherrynich
wrote:

Say I have a drop down list in A2 where you can choose yes or no, if you
choose no I want b2 to require notes to be entered...How would I require
this? Thanks