We weren't able to sync your tasks. This could be because your mailbox is on an Exchange server that isn't supported for syncing tasks. Please contact your administrator for more help.

I am getting the following error

We weren't able to sync your tasks. This could be because your mailbox is on an Exchange server that isn't supported for syncing tasks. Please contact your administrator for more help.

I have followed https://technet.microsoft.com/en-us/library/jj554516.aspx to configure this.

Everything appears to be working I have setup the OAuth on all Exchange mailbox Servers in my org. I have a public certificate with a prodiver and have tried installing the SSL certificate as well stated in the article. Not sure what to do this is an Exchange 2013 DAG.

Any help is appreciated, thanks.

May 21st, 2015 1:36pm

Hi,

To be able to sync your tasks, your mailbox needs to be hosted on an Exchange 2013 server deployed in the same topology. If you are on premise, you need to make sure to install Exchange 2013 next to your new SharePoint 2013 install, and then setup the S2S protocol following the steps described in this article.


Prerequisites:

1.TaskSynchronization requires user profile synchronization & work management service application.
2.Task Synchronization requires Exchange Server 2013 & SharePoint web application on Secure Sockets Layer (SSL).
3.Synchronize Out of office calendars option should be enabled at the server level (PWA).
4.Synchronize Out of Office Events option should be enabled at the user level (MySite).
5.Timesheet periods must be set up (Even if the actuals are not tracking using timesheets)

High Level Steps:

1.Install Microsoft Exchange 2013:
http://technet.microsoft.com/en-us/library/bb691354.aspx

2. Configure site bindings to include SSL (https and port 443)

3. Configure Alternate Access Mappings for the SharePoint web application (Site can be accessed via the FQDN address).

4. Add a Self-Signed Certificate as a trusted certificate on the Exchange Server by accessing the PWA .

5. Download EWSManagedAPI.msi from the Microsoft Download Center (http://www.microsoft.com/en-us/download/details.aspx?id=35371)  and save it to a folder on the application server.

 Run the following command and restart IIS:

msiexec /i EwsManagedApi.msi addlocal="ExchangeWebServicesApi_Feature,ExchangeWebServicesApi_Gac"

6. Configure Exchange Server 2013 for Task Synchronization

           Establish OAuth trust and service permission on Exchange Server.

           On the Exchange server, open Windows PowerShell and change to the "C:\Program Files\Microsoft\Exchange Server\V15\Scripts" directory.

           Run the following script:

             .\Configure-EnterprisePartnerApplication.ps1 -ApplicationType Sharepoint -AuthMetadataUrl

Reference:

http://blogs.msdn.com/b/srirame/archive/2013/04/03/project-server-2013-tasks-synchronization-with-exchange-mail-box.aspx

Best Regards,

Eric

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May 22nd, 2015 3:30am

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