Classter Knowledge Base

Select the Interval (in Seconds) at Which the QR Code Should Refresh

App Settings › Academic Settings › Attendance › Attendance Taking · Updated 2026-07-22

This setting defines how often, in seconds, the QR code shown by the Teacher's mobile app refreshes to a new code during a session. Students must scan the currently displayed code within that time interval, since the previous code is no longer valid once it refreshes.

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