The student/parent sent a notification via AC chat box saying student will be absent for the schedule.

Take screenshot while in the classroom.

 

Stay in AC until passed 15th minute so you will not be tagged 'Leave early' for the lesson. After 15 minutes have passed, you may tag the lesson as Student absent, then you can now leave the class.

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Note: If student have consecutive/ multiple lessons for the day, ENTER each of the lessons and attend the class. Apply the process flow above if student is still absent.