I'm in pre-production with a new SharePoint 2013 (Enterprise) farm, and I'm having an odd issue with task sync between SharePoint and Outlook.

I've been able to successfully sync calendars both ways without issue. Tasks created in a SharePoint project site also sync to Outlook correctly.

However, tasks created on a SharePoint list directly in Outlook do not sync back to SharePoint correctly. Tasks created that way get synced to the user's Personal task list in SharePoint, rather than the corresponding list in the project site.

To get it to show up in the project site's task list, they have to edit the task's Project property and set it to the list that they want it on. They also have to check the "Make this task public to team members" box.

After doing those two steps, the task is moved to the correct list.

This happens regardless of whether the task list has any custom fields. The original task list I discovered this issue with was customized, but I've replicated it with a standard task list as well.

What might be causing this to happen? Is this behavior by design?

  • In my opinion, it is unidirectional (from List to Outlook) and by design. Aug 14, 2015 at 12:43
  • It's not unidirectional, though. If I edit an item that's in the list (mark it complete, for example), those changes get synced back to SharePoint correctly. That's bidirectional sync.
    – Ben Wyatt
    Aug 14, 2015 at 13:14

1 Answer 1


For Tasks, it has the feature to "mark it complete" from the outlook directly; but not for the calendar items; it does not have the capability to write back to SharePoint.

  • This does seem to be the answer, unfortunately. Thanks for your input.
    – Ben Wyatt
    Aug 17, 2015 at 14:26

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