The Activity History allows you to check the usage history of users who have accessed the dashboard. In particular, you can check the activity history of each account: whether it created a tracking link, changed a setting, requested data, or any other activities. You can also find more detailed information on the right window by clicking each activity log.
Also you can click 'Activity ' Tab to filter specific activity to view. The default search period is from the latest activated to 7 days before.