Outlook entries that are created in Groove are duplicated when you access your e-mail account from two different computers (915641)

SYMPTOMS

You use Microsoft Outlook together with Microsoft Exchange Server, and you access your e-mail account from two different computers. When you do this, Outlook entries that are created in Groove are duplicated.

This issue occurs when one of the following conditions is true:

The same Groove account is on both computers, and the "Synchronize with Outlook" feature is enabled on both computers.
Different Groove accounts are on both computers, but both accounts belong to the same workspace, and the "Synchronize with Outlook" feature is enabled on both computers.

CAUSE

This issue occurs because the Groove account does not recognize that the duplicate Outlook entry that Exchange Server created originated from Groove.

When the device that creates the entry synchronizes with Outlook, Outlook then synchronizes with the Exchange Server server that distributes the change to the other Outlook client. The Groove account on that device also synchronizes with Outlook. However, the Groove account does not recognize that the duplicate entry that Exchange Server created originated from Groove. Therefore, the Groove account creates a new instance of the entry in Outlook. The newly created entry is then sent to Exchange Server. Exchange Server then copies the entry to the original device. This process causes duplicate entries in the Outlook clients.