In order to track worker's actions go to menu Configuration - Preferences - General.
Check "Use Worker Activity Logging".
Press Choose Events button and select which events do you want to track.
Do you need to track other actions? Let us know.
Then in order to see worker actions:
It's possible to filter the report by date, worker, event type or sales location (if sales location feature is enabled).
Watch the video tutorial about this feature.
See also: