Automatic Review requests can be triggered after a set amount of Lessons have been completed by navigating to System > Settings > People and Activity > Activity and enabling ‘Request Reviews automatically’ before specifying your ‘Default Review Units’ - the value specified here will determine how many Lessons are completed before a Review request is automatically sent out to the Client.
In the same panel you can also enable ‘Request Review on Job completion by Tutor’ to send out an automatic Review request whenever a Tutor marks a Job as ‘finished’.
The section of the Activity settings panel that covers automatic Review requests.
Note: Editing these settings requires the 'Edit Branch Settings' permission. If you cannot see them, ask an Administrator to check your Administrator Permissions.