> ## Documentation Index
> Fetch the complete documentation index at: https://docs.drumtix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Scanning Tickets

> How to scan QR codes at the door and understand the response.

## Starting a scan session

1. Open [checkin.drumtix.com](https://checkin.drumtix.com)
2. Tap the event you're working the door for
3. Tap **Scan** — your device's camera activates

## Scanning

Hold the camera over the QR code on the buyer's ticket (printed, email, or wallet pass). The scan result appears immediately:

| Result                 | Meaning                                             |
| ---------------------- | --------------------------------------------------- |
| **Valid — checked in** | Ticket is genuine and has just been checked in      |
| **Already scanned**    | This ticket was already scanned in this session     |
| **Invalid**            | QR code is not recognised or has been tampered with |

The screen shows the buyer's name and ticket tier for every valid scan so you can verify identity if needed.

## After a scan

The scanner resets automatically after each result — you don't need to tap anything between scans.

## If the camera won't focus

* Ensure the ticket screen brightness is turned up
* Ask the buyer to zoom in on the QR code if it's small
* Use [Manual Check-in](/door-checkin/manual-checkin) as a fallback

## Multiple scanners

You can run the check-in app on multiple devices simultaneously. Check-ins sync in real time — an "already scanned" response will correctly trigger on a second device if someone tries to re-use a ticket.