How do I delete a User?
All Users are maintained at the Portal level for Plus.Live, so if you go to 'Administration' this is where you setup and maintain Users.
User groups are what defines which application (Snapshot or Sales or Forecast etc) the User gets access to.
So you can simply change the User group and the User will no longer have access to the application. The user does need to be set as a 'General' user under the Access Level as Admin users have access to all.
You can also untick the 'Active/Linked' option.
This means the User will not be able to log into the Portal. If they have access to the Portal but the User groups does not have access to Applications, then they can log in but will see nothing.