Ignore Script Result

First off, does it run and quit Lync? I'm going to guess it does not quit it. The reason is, there is an issue with the script to start with, which may be why you are getting that error. The main problem is that Applescript or osascript calls to a user session don't really work well when they are run from a policy. OS X doesn't like when a root level command tries to affect another user's space, like quitting an application run by the logged in user, especially when its done using Applescript commands.
You can try doing something like looking for the running process (Lync) and then using the kill command instead. I'm not a big fan of using kill or killall, but it may be the only way in the short term to not have it error on you.

Another more advanced way would be to pre install and load a user level LaunchAgent that watches for a trigger to run a script. The script can then do the osascript call to gracefully quit the applications you pass to it. Since LaunchAgent's run as the logged in user, this should work without errors.

If I'm off the mark on the above and its actually somehow working, but you want to avoid seeing the "error" text show up in the policy log, you'll probably need to add some error trapping to send errors to /dev/null or tell Applescript to ignore them, or they will get printed out in the script result. The jamf binary sees "error" and then thinks something went wrong. This has been a long long standing issue. Would really be great if this behavior was finally deprecated and removed from Casper as JAMF has been promising now for a while.

@mm2270

It does quit lync just fine. Works great but still fails the policy because of that result code.

Well, kind of surprised its working at all, but, if it is, I'm not sure what the best way would be to ignore those errors. I'm not even sure why there would be any errors if its actually quitting Lync successfully.

Maybe something like the below, which I think should tell osascript to do something different on an error. I'm not the best Applescripter, so someone else here probably has a better answer for you to be honest.

#!/bin/sh

osascript << EOF
tell application "System Events"
    try
        quit application "Microsoft Lync"
    on error
        return
    end try
end tell
EOF

You can just supress the error.

osascript -e 'quit app "Microsoft lync"' 2> /dev/null

Seems to work.

Of course if it errored for some other reason would never know...

Why use osascript?

#!/bin/sh

# Get Lync PID
lync_pid=$(pgrep Lync)

# If lync is running we have its pid, so kill it off
if [ ! -z $lync_pid ]; then
    kill "$lync_pid"
else
    echo "Lync is not Running"
fi