The short answer
Market and event traders need 4G-capable hardware or tap to pay on a phone, offline store-and-forward enabled with sensible limits, spare batteries or power banks, and a printed QR pay-by-link fallback for when everything else fails.
Plan for no signal
Crowded events overwhelm mobile networks. Offline mode with a per-transaction limit, plus a pay-by-link QR code as a backup, keeps you trading when neighbouring stalls cannot.
Reconciliation after the event
Batch and reconcile the same day. Multi-day events with several devices become genuinely difficult to untangle a week later.
Key takeaways
- Assume the network will fail at peak
- Offline limits should match your ticket size
- Reconcile daily, not after the event
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