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A user does not receive an invitation when the user is added to a distribution list that is a member of a chat room in Lync Server 2010, Group Chat

Consider the following scenario:
  • You enable user A and user B for Microsoft Lync Server 2010.
  • User A is not a member of any Group Chat room in the environment. User B is added to a Group Chat room.
  • You add a distribution list (DL) as a member to a Lync Server 2010, Group Chat room. You enable this chat room to send invitations to new members.
  • You add both user A and user B to the DL.
  • Both user A and user B sign in to Group Chat.
In this scenario, user B receives the invitation but user A does not.
This issue occurs because of an automatic directory synchronization issue. The DL is not assigned a prinID. Therefore, the server does not detect the users in the DL and does not send the invitation.

Note The term DL can refer to a distribution list, security group, organizational unit and so on.
To resolve this issue, install the following cumulative update:
2670342 Description of the cumulative update for Lync Server 2010, Group Chat: February 2012

Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 2666341 - Last Review: 03/01/2012 23:14:00 - Revision: 1.0

Microsoft Lync Server 2010, Group Chat

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