Consider the following scenario:
- You sign in to the Microsoft Lync Server 2010 Group Chat Administrator Tool.
- You try to add a user who is in a nested distribution list or in a distribution list that contains several members to a chat room. To do this, you start to type the name of the user in the Add User to Role dialog box, and then you click Search before you have typed the complete name.
Unable to get eligible principals: Operation failure