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

  • Question

  • Hi all,

    I am using the Exchange EWS Managed API SDK 1.1 to implement some kind of syncing of Exchange Calendar items. In order to do that, I need to now the unique id of an appointment.

    I have tried several options, and can't find the right one.

    I cannot use the ItemId of the appointment because it changes when moved to another folder.

    I cannot use the extended property 0x300B because when I copy an appointment in Outlook (Ctrl + drag to another day) this new appointment gets the old value of this property.


    Can anyone help me finding a correct global unique id of an appointment?

    Thursday, September 15, 2011 10:27 AM

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