When a check-in fails

Symptom, cause, fix — the page to open while a student is standing in front of you.

What this page covers

• The code will not scan
• Expired or invalid code
• Outside the allowed area
• This device already checked someone in
• Student not found in the group
• Session already ended
• When to just use a manual override

Draft

This page is an outline. Full steps and screenshots land in phase 1.