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Differences in Calendar ID - Outlook REST API <-> EWS RRS feed

  • Question

  • Hello,

    We are currently developing on a new synchronization model for outlook objects.

    The new model uses Outlook REST Push Notifications to receive updates on Outlook objects instead of the EWS Streaming-Subscriptions.

    Currently we have a problem with the Calendar IDs. Retrieving Notifications on a Calendar let us receive a much more longer ID than we had already requested over the EWS and we could not associate the Notification to the correct Calendar.

    Why is this happening and is there a way to convert the longer ID to the smaller ID?

    Here a short sample:

    Outlook REST API Calendar ID:

    AAMkADY2ZDNjYTEzLTk3N2EtNGYzNS1hZWUwLTlkNzFiZjE4MWY4YQBGAAAAAABcLrBC7k2TSoE9Jo93oFnBBwCFqa2ju3obSL-6Iu7AvqrUAAAAkG19AABlLl_JkJ9vTJRpHc2orqRXANG-NRUCAAA=

    EWS Calendar ID:

    AAMkADY2ZDNjYTEzLTk3N2EtNGYzNS1hZWUwLTlkNzFiZjE4MWY4YQAuAAAAAABcLrBC7k2TSoE9Jo93oFnBAQCFqa2ju3obSL/6Iu7AvqrUAAAAkG2AAAA=

    Thursday, October 25, 2018 12:27 PM