---
title: "Manage attendees and check-in in Infinity3"
description: "Keep registrations accurate and record arrivals for in-person events. #### Before you start You’ll need event-management access. Prepare your supported mobile app, staff access and an arrival process before the event. #### Add an attendee manually 1. Open the event’s…"
url: "https://www.infinity3.co.uk/help/manage-attendees-and-check-in-in-infinity3/"
updated: "2026-10-08"
category: "Infinity3 Platform / Events & Ticketing"
---

# Manage attendees and check-in in Infinity3

Keep registrations accurate and record arrivals for in-person events.

#### Before you start

You’ll need event-management access. Prepare your supported mobile app, staff access and an arrival process before the event.

#### Add an attendee manually

1. Open the event’s **Registrations** area.
2. Select **Add Attendee**.
3. Choose tickets and quantities.
4. Select or enter the correct attendee details for each ticket.
5. Complete the appropriate payment or offline-payment recording process.
6. Confirm the registration and check its details.

Recording an offline payment documents money received elsewhere; it does not collect the money.

#### Check in guests

1. Open the mobile app’s **Events** area.
2. Select the correct event.
3. Choose **Scan to check in** and scan the guest’s QR code.
4. Confirm the result before admitting them.

If scanning fails, find the guest in **Attendees**, verify their identity and use the available manual check-in control.

#### Things to know

- Check-in is for in-person events, including ticketed and RSVP events.
- A duplicate scan should show that the guest is already checked in.
- A ticket for another event is not valid for this one.
- Manual registrations can override sold-out limits; check venue capacity first.

If check-in fails, contact Infinity3 with the event, registration reference and error.