Never mind Chip Pearson's website saved the day again.

Private Sub Worksheet_Change(ByVal Target As Excel.Range)
If Target.Address = "$H$12" Then
Application.EnableEvents = False
ValidateDate
Else
Exit Sub
End If
Application.EnableEvents = True

End Sub

"Squid" wrote in message
news:8iiWb.2437$yE5.13085@attbi_s54...
I am writng some code to validate dates entered. I have some code that
works in combobox_lost focus. It compares a date in a cell H12 to the
date
generated from the combobox. But if the user selects the value from the
combobox, prior to entering value in the cell, validation will be skipped.
I want to create some code that when the value in cell H12 changes, my
code
is triggered to validate dates. The code should only be triggered when
cell
H12 changes.



Private Sub Worksheet_SelectionChange(ByVal Target As Range)
Dim Workdate As Range
Dim Result as Interger 'Msgbox result
Set Workdate = Range("H12")

If Intersect(Range("H12"), Target) Is Nothing Then
Exit Sub
Else
ValidateDates
End If
End Sub

Private Sub ValidateDate()
Dim Workdate, StartDate, ExpirationDate As Date
Dim Result As Integer

With ActiveSheet
Workdate = .Range("H12").Value
StartDate = .Range("N8").Value
ExpirationDate = DateAdd("yyyy", 1, StartDate) - 1

'Test if workdate enter is within contract effective dates
If Workdate = StartDate And Workdate <= ExpirationDate Then
Exit Sub
Else
Result = MsgBox("The work date does not fall within the selected
contract period. Are you sure you want to use this contract?", _
vbQuestion + vbOKOnly, "CCF, Inc.")
End If

Thanks