The operator keeps track of the actions that Atlas scheduling takes. It will provide a log of success, progress or failures for recurrences, mass actions and edits as well as bulk time off actions.
You can access the Operator by clicking on the checkmark in the top right next to the notification bell.
This will display the last four entries. Clicking View all operations will take you to a comprehensive list of all notifications.
PRO TIP: You can find your report exporting under the operator.