# Understand scan results

## Public help

**Use scan result messages to decide whether to admit an attendee**

- Valid: ticket belongs to the event and has not been used.
- Duplicate: ticket was already scanned.
- Wrong event: ticket is valid for another event, not this one.
- Invalid: QR code or signed payload is not accepted.
- Unauthenticated: scanner session/API access is missing or expired.

> **Internal note:** Add admin scan report/conflict screenshots after admin UI access is available.

## Verification evidence

`Scanner Door Operations: QR Validation, Duplicate, Wrong Event`, `Admin And Internal Finance Surface`.

## Last verified

Verified against the staging website on 2026-06-13. Mobile apps were not tested in this pass.