This guide covers QR accreditation itself: how it works and how to prepare it. For the full entry service (gates, staff, backup connectivity, Face ID), see our access control and accreditation page.
How it works, step by step
- 1
Define access types and zones
Before registration opens, decide which access types exist (general, VIP, press, staff), which zones each one can enter and through which gates.
- 2
Registration or guest list upload
Attendees sign up on a landing page with the event branding, or we upload the guest list you already have. The organizer decides which fields to collect.
- 3
QR delivery
Each person receives a unique QR code by email, with the badge as a PDF. The QR holds no personal data: it is a key validated against the event database.
- 4
Door test
Before the event we test scanning with valid, already used, cancelled and fake codes, so the first surprise does not happen in front of your guests.
- 5
Scanning at the door
Staff scan with a phone camera or a physical scanner. The system answers instantly: valid, duplicate or not authorized. If needed, the badge is printed right there.
- 6
Live check-in and report
During the event you see how many people came in, by type, zone, gate and hour. At the end you get a report with actual attendance and peak entry times.
What your event needs
- The list or the form: a guest database (name, email and any fields you want, such as company or job title) or an open registration page.
- Access types: which categories exist and which zones each one can enter. This is the decision worth making early.
- Access points: how many gates or desks run accreditation at the same time. It sets how many devices and staff you need.
- Devices: phones, tablets or computers with a browser, plus physical scanners if you have them.
- Connectivity: scanning validates against the database. On our access operations we bring backup connectivity (a 4G router and, depending on the event, Starlink) so the door does not depend on the venue wifi.
- A badge printer: if badges are printed on site instead of arriving pre-made.
- Time: for a QR system, one week from confirmation, testing included.
QR, paper list, RFID wristband or facial recognition
A general comparison of the four most common systems. None is better in the abstract: it depends on scale, on how many days the event runs and on how much pre-event preparation it allows.
When each one fits
- Unique QR: the starting point for almost any event with a list or pre-registration. It works the same for 100 guests or for thousands, and it integrates with the ticketing platform if it already issues QR codes.
- Paper list: only when the group is small, there is one gate and nobody needs to know live how many people came in.
- RFID wristband: when the event runs several days and people come and go all the time, or when zones and cashless payments are added.
- Facial recognition: when the list is closed, there is time for photo pre-registration and the event justifies processing biometric data. We offer it as an add-on, with a specialist provider and QR as backup.
Many events combine systems. More detail in our article Face ID and QR accreditation for corporate events.
PASE, our QR accreditation platform
At SOMOS DER we run accreditation on PASE, our own platform. As published on its site, it includes unique, non-transferable QR codes, duplicate-entry protection with multi-gate sync, zones and access levels, live check-in, badge printing from any device, scanning by camera or physical scanner, invitations with your event branding and a post-event report. If you need it, SOMOS DER operators and coordinators at the door. It runs in the browser, with no apps to install. Visit PASE.
Prices published on PASE (October 2026) are “starting at” figures, in USD, per event:
All plans include setup and pre-event testing. Prices are a starting reference: the final quote depends on attendees, access points, operators and add-ons, and is invoiced at the exchange rate on the billing date. pase.somosder.ar/en/pricing.
Mass events in Buenos Aires City. If your event falls under Law 5641 (more than a thousand people at a venue not licensed for it), the permit requires a certified, approved technological access control system. PASE is an accreditation platform and we do not present it as an approved system: in those cases we review with you what the permit requires. See our guide to event regulations in Buenos Aires City.
Accreditations we have run
Case studies published on our site, with the figures for each one.
Databricks Live Argentina 2026
Hotel Libertador, for the agency Audere. 500 registrants and 326 attendees in one morning, 216 of them between 8 and 9 am. Scanning the QR or searching the name printed the badge on the thermal printer and logged the entry.
See the case
ArPa Buenos Aires 2026
Art fair at Casa Victoria Ocampo: registration by day and time slot, QR by email in three languages and a shared QR per gallery with an entry cap. 3,229 people over five days, all on PASE.
See the case
Launch of the 41st Mar del Plata Film Festival
For INCAA, at the Palacio Libertad: invitations in three tracks, attendance confirmation before the QR was issued, VIP and Press badges, cocktail and auditorium.
See the case
5th World Congress of Asturian Communities
For the Principality of Asturias, at the Centro Asturiano de Buenos Aires: the list of around 100 delegates from 35 centres loaded into PASE and accreditation at the entrance.
See the case
Campus Party 2024 and 2025 (three editions)
Access control at the Parque de Innovación (2024), in Entre Ríos and at TecWeek in BA Ferial (2025): 20,000 people with online pre-registration, QR codes by participant type and entry monitoring by area.
See the case
Indie Dev Argentina 2025
1,500 attendees over 2 days, with online pre-registration, 5 checkpoints and separate permissions for developers, press and the general public.
See the case
More work in events held.