title: How to: Update calendar events that were imported by iCalendar file?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/45453/icalendar-and-event-updates-not-working-in-outlook">ICalendar and event updates not working in Outlook</a><br>
    <a href="https://stackoverflow.com/questions/275759/help-updating-an-event-in-outlook-2007-with-an-icalendar-file">Help updating an event in Outlook 2007 with an iCalendar file</a>  </p>
  </blockquote>
  
  
  
  <p>How do I update calendar events that were imported by iCalendar file? </p>
  
  <p>I need to re-import events but I want to make sure that the existing events are updated. Currently if I do an import, it adds additional event instead of updating existing event on my Outlook calendar.</p>
  
  <pre><code>BEGIN:VCALENDAR
  VERSION:1.0        
  BEGIN:VEVENT
  UID:123@mydomain.com
  METHOD:REFRESH
  CATEGORIES:MEETING
  STATUS:TENTATIVE
  DTSTART:20081125T233000Z
  DTEND:20081125T233000Z
  SUMMARY: Updated Event 2. Imported From iCalendar File.
  DESCRIPTION:This is a test
  CLASS:PRIVATE
  END:VEVENT       
  END:VCALENDAR
  </code></pre>
  
  <p>I'm trying to use METHOD: REFRESH I also tried METHOD: REQUEST but it still adds additional event instead of updating existing event on my Outlook calendar.</p>