How to find the global unique ID of an appointment using Exchange EWS Managed API SDK 1.1

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• Thursday, September 15, 2011 10:48 AM

   

   
  

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  Hi,

  you can use the ICalUid property of the appointment instance.

  Kind regards,
  Henning Krause

  • Marked As Answer by letscode Friday, September 16, 2011 8:54 AM
  • Unmarked As Answer by letscode Wednesday, January 04, 2012 10:20 AM
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• Thursday, September 15, 2011 12:19 PM

   

   
  

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  Hi Henning,

   

  Thanks for you response. I will try that. Is it possible to find the appointment in Exchange when I know the mailbox (smtpaddress) and its ICalUid property?

   

  Regards,

  letscode

  
  

  • Edited by letscode Wednesday, September 21, 2011 9:39 AM
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• Thursday, September 15, 2011 3:28 PM

   

   
  

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  Hi,

  yes, that is possible.

  See
  http://www.infinitec.de/post/2009/04/13/Searching-a-meeting-with-a-specific-UID-using-Exchange-Web-Services-2007.aspx
  and
  http://blogs.msdn.com/b/mstehle/archive/2009/09/02/ews-uid-not-always-the-same-for-orphaned-instances-of-the-same-meeting.aspx

  Kind regards,
  Henning

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• Wednesday, January 04, 2012 10:23 AM

   

   
  

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  Hi,

  yes, that is possible.

  See
  http://www.infinitec.de/post/2009/04/13/Searching-a-meeting-with-a-specific-UID-using-Exchange-Web-Services-2007.aspx
  and
  http://blogs.msdn.com/b/mstehle/archive/2009/09/02/ews-uid-not-always-the-same-for-orphaned-instances-of-the-same-meeting.aspx

  Kind regards,
  Henning

  Hello Henning,

  so it looks like it is better to use the CleanGlobalUID instead of the globalUid. Is it possible to convert the IcalUID to the CleanGlobalUID like you showed with the GlobalUID on your blog?

  Thanks!

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• Monday, January 09, 2012 7:58 AM

   

   
  

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  Hi,

  nothing to here, really. If you read the article (http://blogs.msdn.com/b/mstehle/archive/2009/09/02/ews-uid-not-always-the-same-for-orphaned-instances-of-the-same-meeting.aspx), Matt writes that as of Exchange 2007 SP2, the UID is based on the clean global object id.

  Kind regards,
  Henning

  If you get your question answered, please come back and mark the reply as an answer.
  If you are helped by an answer to someone else's question, please mark it as helpful.

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• Monday, January 09, 2012 5:21 PM

   

   
  

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  Hi,

  as per my understanding you are using EWS directly right? not the Exchange Managed API? ... Would this also be possible using the EWS API?

  Thanks,

  Michael

  ---

  Michael Sommer
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• Tuesday, January 10, 2012 8:07 AM

   

   
  

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  The EWS Managed API is built on top of the Exchange WebServices, so yes, it applies to both.

  Kind regards,
  Henning

  If you get your question answered, please come back and mark the reply as an answer.
  If you are helped by an answer to someone else's question, please mark it as helpful.

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• Thursday, March 01, 2012 6:03 AM

   

   
  

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  Hi, I am using EWS Managed API 1.1.5 for java.  How do I get this UID for Exchange 2007?  I tried the following code:

  List<Item> i = new ArrayList<Item>();
  appt.save();
  i.add(appt);
  s.loadPropertiesForItems(i, PropertySet.FirstClassProperties);
  String theUID = appt.getICalUid();

  where s was created like:

  s = new ExchangeService(ExchangeVersion.Exchange2007_SP1);

  And get this error: "The request failed. No match found"

  The above code, strangely enough works for exchange 2010. 

  
  

  • Edited by PythonCoder5 Thursday, March 01, 2012 5:00 PM misspell
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• Saturday, March 10, 2012 6:18 AM

   

   
  

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  Can someone tell me if it is possible to get the ICalUID with Exchange 2007?  I noticed that PropertySet.FirstClassProperties doesn't have any values for Exchange 2007.  I have Exchange 2007 SP3 installed.
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