Employee Reminders
When you create an Employee Reminder, if there is an employee that has "Employee Reminders" setup under Notifications, they will get an email on the date the reminder occurs. If they do not have Employee reminders set up under notifications then it will simply show on the Reminders section of the employee screen.
Employee Reminders can be configured in the Employee Manager.
Employee Manager is located in the Back Office > Employees > Employee Management
Select an Employee from the dropdown
Click "Reminders"