'App Not Authorized' Error in Apple Configurator

I have spoken to enterprise support with Apple and this is a known issue. This is more likely to happen if your app library is over 3 GB.

Here is the fix:

  1. Uninstall all your apps
  2. Reinstall each app in batches of 4–5
  3. Once you discover the problem app, redownload the VPP spreadsheet for that app. You then want to reimport it by clicking on the # to the right of the app.
  4. Finish installing the apps in batches to make sure there are no more problem apps.

Again, this is a known issue.