Confirm Before Moving an Appointment

In the calendar view, if you accidentally move an appointment and don't realize it, this may have serious consequences. The following macro allows you to cancel the process.

Paste the code to the ThisOutlookSession module, then restart Outlook.

  How to add macros to Outlook

Private WithEvents m_Exp As Outlook.Explorer

Private Sub Application_Startup()
  Set m_Exp = Application.ActiveExplorer
End Sub

Private Sub m_Exp_BeforeItemPaste(ClipboardContent As Variant, _
  ByVal Target As MAPIFolder, Cancel As Boolean _
)
  Dim Folder As Outlook.MAPIFolder
  Dim Msg As String

  Msg = "You are going to change an appointment. Continue?"

  Set Folder = m_Exp.CurrentFolder
  If Folder.DefaultItemType = olAppointmentItem Then
    Cancel = (MsgBox(Msg, vbYesNoCancel) <> vbYes)
  End If
End Sub