Outlook Calendar doubles up on iPad and Iphone

Posted on 2012-09-15
Last Modified: 2012-09-21
My appointments in the Outlook calendar have doubled and tripled up on my iPhone and iPad.  I tried the iCloud and have dumped that from all devices as far as syncing.
I have only one calendar in Outlook.  The Apple devices insist on a second calendar called Birthdays.  That calendar appears to have nothing in it.
In iTunes I have said to not sync the calendar and that gets the calendar erased on the iPhone.  I then sync and replace the calendar on the iPhone and the doubles and triples show.  I have verified the calendar on Outlook has no duplicate items.  The same happens on the iPad.
iCloud is turned off for all items except Find my Device on the Apple items.
Thanks in Advance.
Question by:mabarnes11
    LVL 23

    Expert Comment

    by:Stelian Stan
    Here is the offical Microsoft KB Article about this issue:

    And the apple discussion:

    Author Comment

    Great solution EXCEPT I am not using Exchange. Just plain ole MS outlook 2010. Sorry not a valid solution.

    Accepted Solution

    I have found the problem and resolved the issue.  For all you folks using Outlook to sync with your iPad or iPhone and get doubles or even triples here is the answer.
    Outlook is the bad guy.  I had deleted two calendars that were created in Outlook with iCloud and at other times.  Outlook deleted the view of the calendar but the entries were still in the Outlook list of appointments.  The easiest way for me to get rid of the duplicates in Outlook 2010 was to open the calendar on my iPad (or iPhone) to find the duplicates.  Then I went to Outlook, selected calendar, View and Listing.  Click on the Subject column and the appointments will align in alphabetical order.  As I went through each month on the Apple device and saw the duplicates I would go to that item and with the control key held down I would click on the ones I wanted deleted.  After i selected the ones I wanted to delete merely hit the Delete key.  Most of mine were repeating items so I only had 12 months to review.
    Yes I know it takes time but there appears to be no other solution from anyone on this service or any of the Apple sites.  I even went so far as to visit the local Apple Store and they had no offering of a solution.

    Author Closing Comment

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