User sessions
The User Sessions TSI allows you to view all currently active Planon ProCenter user sessions as well as previous user sessions. This enables you to see who is currently logged on to the application and who was previously logged on and is subsequently logged off.
Logon and logoff timestamps are recorded in both the server's and the user's time zone. To distinguish between the server's and the user's time zone, multi-time zone must be enabled.
The field Last activity’s timestamp records timestamps of whenever users last saved or accessed an element in Planon ProCenter. This field is disabled by default and before it can be used, it must first be enabled in Field Definer by a Planon administrator.
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•    The Last activity's timestamp setting is not enabled by default because it comes with a performance penalty. If you start logging for each user this will create a considerable overhead. Only enable this setting if you need the information to retrieve more detailed information for analyzing issues.
•    For details on how to do this, see Settings for the User sessions business object (Field definer).