The "All People" list in Chatter or the People tab for some organizations does not list any users by default.
|Knowledge Article Number||000212640|
|Description||When going to the All People section in the Chatter tab or going to the People tab directly some organizations list all users, some list only recent users, and some do not list any.|
|Resolution||This is due to the number of users in the organization, for organizations under 50 users all of them will be listed. For organizations greater than 25,000 users none will be listed, the user will have to start entering a search term. In between this recent users will be listed. This is done to maintain performance as otherwise timeouts may be encountered.|