Troubleshooting Cloud Policy Service (CPS) - part 1

russellhowes73 RomanDoerr the behavior you are seeing in the registry is by design and allows Office apps to apply policies for multiple users as they switch between accounts independent of the account used to sign into Windows.  Under HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\CloudPolicy you will see the LastUser key which holds the policy check-in information for the last user that triggered the policy check-in (the last signed in user) and a duplicate of that information using the ADAL ID.  This behavior is also used in the Cloud Policy hive (HKEY_CURRENT_USER\Software\Policies\Microsoft\Cloud\Office) to cache each user's set of policies and allow for quick switching between users.

If you believe policies are not being properly applied, please reach out to support or send me a private message and I can ensure we get this resolved.