Offline check-in and sync
Why the scanner keeps working without Wi‑Fi, how the pending queue works, and what staff and organizers should expect.
Why offline mode exists
Venues often lose Wi‑Fi or cellular data during peak entry. The scanner is built so check-ins continue locally and upload automatically when the device is back online. You do not need a separate app or mode switch.
What happens when you’re offline
- QR scans and manual check-ins are saved in a queue on the device.
- The UI shows a pending count (how many check-ins are waiting to sync).
- Duplicate detection still works for guests already in the local queue or already checked in on that device.
- When connectivity returns, the queue uploads automatically — usually within seconds.
Staff should keep scanning during an outage. Do not stop check-in because the network dropped.
What organizers should know
- Each scanner device has its own queue. Multiple staff at different doors each sync independently.
- If the same guest is checked in on two devices while both are offline, the server resolves conflicts when sync runs — you may see an “already checked in” outcome on the second sync.
- After the event, open Attendees in the workspace and confirm counts match expectations. Export the list if you need a backup record.
If sync seems stuck
| Symptom | What to try |
|---|---|
| Pending count stays high | Move to an area with signal; toggle airplane mode off |
| Guest checked in offline but not on dashboard | Wait 30–60 seconds after reconnecting; refresh Attendees |
| Same guest scanned twice at one door | Expected amber/yellow on second scan — see Troubleshooting |
Related
- Door staff guide — day-of scanning steps
- Check-in basics — scanner overview for organizers
- Troubleshooting — sync and scanner issues
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