Hi Holger,
Thanks for your reply.
Sorry if my follow up question is dumb: where exactly do I insert the code you provided-above or below my current code or in a separate macro? My code is below:
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rngDV As Range
Dim oldVal As String
Dim newVal As String
If Target.Count > 1 Then GoTo exitHandler
On Error Resume Next
Set rngDV = Cells.SpecialCells(xlCellTypeAllValidation)
On Error GoTo exitHandler
If rngDV Is Nothing Then GoTo exitHandler
If Intersect(Target, rngDV) Is Nothing Then
'do nothing
Else
Application.EnableEvents = False
newVal = Target.Value
Application.Undo
oldVal = Target.Value
Target.Value = newVal
If Target.Column = 11 Or Target.Column = 23 Then
If oldVal = "" Then
'do nothing
Else
If newVal = "" Then
'do nothing
Else
Target.Value = oldVal & ", " & newVal
End If
End If
End If
End If
exitHandler:
Application.EnableEvents = True
End Sub
Lyndy
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