This can specified by choosing an option from the ‘Report Visibility’ dropdown menu found within System > Settings > People and Activity > Activity - the options are:
Not viewable to Clients, Students or Affiliates: Only Administrators or any relevant Tutors can view Lesson Reports.
Viewable to Clients, but not included in Invoice emails: Clients can log into their Client dashboard to view Lesson Reports; they won’t be included in Payment Request emails.
Viewable to Clients and included in Invoice emails: Clients can view the Lesson Report both via their Client dashboard and in any relevant Payment Request emails.