If your organization allows the use of the Mac App Store (MAS), it is good to know which users have used the MAS. Casper Suite allows you to make Extension Attributes which can return any arbitrary information that you’d like. The 318 Tech Journal recently went through how to gather all the Apple IDs that are using the MAS using an extension attribute. Check out the journal entry here.
Nate Walck
Nate is a Systems Reliability Engineer at Dropbox, Inc in San Francisco, CA. He runs afp548.com along with Sam Keeley and is one of the founding members of the ##osx-server IRC channel on freenode.net. He loves being involved in the Mac Admin community and using Open Source projects whenever possible, especially Munki, The Luggage and Puppet.
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Works with Absolute Manage custom info items too if you remove the and tags.
I tried commenting on the original article but couldn’t, so I’ll comment here… The script listed works independently of casper, so you can use ARD or Terminal to run it as well.