Lync Logging View Message Body

Here is a reg edit you can perform to see the message body in the Lync Logging tool. I used this to help troubleshoot the Mobility and the IMM Filter

HKeyLocalMachine\System\CurrentControllSet\Services\RtcSrv\Parameters
Create a Dword Value of "EnableLoggingAllMessageBodies" set to value of 1

Note: requires restart of Lync services to initialize

CAUTION:  You will want to revert this setting after troubleshooting is complete, its purpose is to include the message body payload in logging, this could be construed as a security privacy concern.