There is a problem with ActiveSync and iCalendar files, at least with Outlook/Exchange:

  1. you receive an email with an iCalendar attachment, .vcs or .ics file.
  2. you accept the meeting request or double click and add the attachment
  3. New appointment shows up in Outlook, but does not sync to all mobile devices

The question for sysadmins here is that is there anything you can do in Exchange or Outlook that would make iCalendar-originated appointments sync like ordinary appointments?

Below is an example of a barebone iCalendar file that synced ok with an iPhone OS4 but failed to sync with Nokia devices:


The problem is annoying for any user who receives iCalendar attachments. Unfortunately, I'm not in a position to know which combinations of the handset model, ActiveSync, iCalendar, Outlook and Exchange versions are affected. But I've seen quite a few support requests lately about this. The standard answer is that you can get the appointments sync by editing them manually in Outlook, but this is just not good enough.

See Also:

ActiveSync does not sync appointments from iCalendar files

Outlook events not syncing with ActveSync under mobile 6

  • Is this still an issue? Do you have any additional information? If you copy the offending appointment will it still be a problem? Can you copy an appointment into a PST and post it somewhere? Can you describe exactly what you mean by 'edit them manually'? If you do a calendar export from Outlook will are the appointments from iCalendar files included? – Zoredache Dec 8 '10 at 3:04
  • Does the appointment show up in Outlook Web Access calendar? Active Sync functionality is quite closely tied to OWA. – dunxd Feb 7 '11 at 21:20

please tell more, which exchange server and outlook version are you running. Also, how many Calendar folder do you have in your outlook, please check with OWA (outlook web access) if this calendar is there. Also make sure that you are saving appointment into right calendar. Most mobiles can sync only one, default "Calendar" folder.

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