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Topic Last Modified: 2012-10-01
The following list describes the requirements for implementing unified contact store in Lync Server 2013:
You must be running Microsoft Lync Server 2013 and Exchange 2013.
Users must use Lync 2013 to initiate the migration of contacts from Lync Server 2013 to Exchange 2013.
User mailboxes must be migrated to Exchange 2013.
You must have server-to-server authentication configured between Lync Server 2013 and Exchange 2013.
Note
For detailed requirements about setting up authentication between Lync Server 2013 and Exchange 2013, see Managing server-to-server authentication (OAuth) and partner applications in Lync Server 2013 in the Operations documentation.