HomeCustomer ZoneSupportWhat does ‘As Required’ mean in email notifications page?

In Web TimeSheet 'As Required' indicates, e-mail notification(s) will be triggered as and when a user performs an action. For Example, when a timesheet is submitted an email is triggered to the approver(s) indicating that a timesheet is awaiting approval.

 
Eg., When a user submits a timesheet for approval, 'Timesheet is waiting for approval' email is then triggered and sent to his approver.