Private Sub Worksheet_Change(ByVal Target As Range)
Application.ScreenUpdating = False
Application.EnableEvents = False
If Not Application.Intersect(Target, Range("F30,F33")) Is Nothing Then
MsgBox "Le changement de lot réinitialise les pages ""Feuil"" et ""Feuil2"" " & Chr(13) & Chr(13) & "Veuillez redéfinir la valeur initiale", vbOKOnly + vbInformation, "avertissement"
Application.EnableEvents = True
End If
end sub