Under the main menu:

      Help -> Troubleshooting -> View Log File...

Default path on hard drive (replace [User Name] with your user name):

     C:Users[User Name]AppDataRoamingDAZ 3DStudio4

At least on Windows 8.

The info you're looking for will be at the end if you check it immediately after you load the object and acknowledge the duplicate ID error.  I get it from some of my props and morphs.  Haven't gotten around to tracking them all down. :)