Issue/Behavior: When changing a user's first name in AD, cannot search for the user by the new name in Lync 2013 client. Searching by the former name shows the current name correctly; however, no results appear when searching by the new name even though the display name showed in the former name search.
You may also notice in the contact card of the user object it is showing two email addresses (former name and new name). The Exchange mailbox has SMTP addresses for new and former name so that the user can still receive mail from contacts that send messages to the old email address.
Workaround: Microsoft support has confirmed this is a bug in Lync 2013 environments that should be corrected in the CU1 update scheduled to be release end of February. Here is a work around solution to manually update the information:
Step One: Use ADSIEDIT.MSC to obtain the GUID of the AD user object.
Step Two: From the Lync control panel, disable the user account.
Step Three: Then use the SQL script below to remove the user from lync rtcab database. Replace the Guid with the user's Guid.
USE [rtcab]
GO
DECLARE @return_value int
EXEC @return_value = [dbo].[RtcDeleteAbEntry]
@_AdObjectGuid = '280ef1c3-07e7-4bef-bd20-da7d127561fd'
SELECT 'Return Value' = @return_value
GO
Step Four: From Lync management shell, run the following commands:
update-csuserdatabase
update-csaddressbook
Step Five: after the update-csaddressbook finishes, use this command to dump the address book and check if the update was successful
c:\Program Files\Microsoft Lync Server 2013\Server\Core>abserver.exe -dumpfile " \\Lync\FileShare\1-WebServices-4\ABFiles\00000000-0000-0000-0000-000000000000\00000000-0000-0000-0000-000000000000\F-113d.dabs" temp.txt
Step Six: In the Lync control panel, enable the user account for Lync. Now do Step Four again. Log out and back into the Lync client and search for user by new name.