# Scanning at the gate: install the app, prepare and test it together [Home](https://mijnevent.nl/en) / [Blog](https://mijnevent.nl/en/blog) / Scanning at the gate: install the app, prepare and test it together steward scanning app check-in offline gate sync # Scanning at the gate: install the app, prepare and test it together You have been asked to scan tickets. Four steps get you ready: install the app, sign in with the code from your e-mail, download the event for offline use and test with a colleague that the same ticket really does turn red on the second phone. [Jasper Koers](https://mijnevent.nl/en/author/jasper-koers) · 15 August 2026 · 6 min read In short - Always scan with the official MijnEvent app; for events with more than 50 visitors the app is a must. - You sign in with the e-mail address from your invitation and the six-digit code that is mailed to you. - Download the event for offline use on the day itself, so scanning keeps working when the network on site drops out. - Switch on "Share check-ins over Bluetooth": scanners at the same entrance exchange check-ins, so the same ticket cannot go green twice. - Test before the event day with a second steward: scan one ticket on phone A and then on phone B — B should turn red, showing your colleague's name and the time. # What is expected of you You have been asked to scan tickets at the entrance. That is where visitors form their first impression, and where an organiser runs into trouble fastest if anything falters. The organiser is counting on you, and MijnEvent — just like the organiser — depends on you here. So read these instructions in full and test scanning before the event starts. On the day itself there is no time for it: there will be a queue, and you will not have two free hands to work out why your phone is doing nothing. # Step 1 — Install the app Always scan tickets with the official MijnEvent app. For events with more than 50 visitors the app is a must: only there can you keep scanning offline and share check-ins with other scanners. Download the version that matches your phone — the app is in both the App Store and Google Play. Do that at home, on wifi, not in the car park five minutes before the doors open. # Step 2 — Sign in with the code from your e-mail 1. Open the app and enter the e-mail address on which you received the invitation. 2. You immediately get a six-digit code by e-mail. Type it into the app. 3. If you steward for several organisations, pick the right one. Your account is then ready. No code? Check your spam folder and try again with exactly the address the invitation went to — the system does not know any other address for you. # Step 3 — Prepare your shift The network on an event site drops out more often than you would expect: a marquee full of steel and people is an excellent radio damper. So prepare every shift like this: - **Download the event for offline use.** Open the event in the app and choose "Download for offline". Do this on the day itself, so the ticket list is current. - **Set the entrance where you are standing.** That name is recorded with every check-in, so it is clear afterwards where somebody came in. - **Switch on "Share check-ins over Bluetooth"** in the screen where you pick the entrance. - **Run the Connection test** via Settings → Gate sync → Connection test. Every line in the checklist has to be green. Not sure whether two phones can see each other? Start the radio test on both phones. A reply proves that the Bluetooth radios find each other — not yet that the event key matches, but it saves a lot of searching. # What sharing check-ins over Bluetooth actually does Scanners at the same entrance exchange their check-ins over Bluetooth. When your colleague scans a ticket, your phone knows within a few seconds — even with no internet at all. That way the same ticket cannot go green twice. Just as important is what it does *not* do: - It does not replace the server. As soon as there is internet again, the server leads. - It is not a guarantee, but an extra safety net. - It does not cover the whole site: count on 10 to 30 metres with a clear line of sight. Walls, marquees and crowds shorten that. - It only works between scanners on the same event and the same day. - It only works with the scanning screen open — not with the app in the background or the phone in your pocket. # Step 4 — Test it with a second steward Do this test well before the event, together with a colleague and two phones. For a fair test, put both phones in flight mode and then switch Bluetooth back on — that way you know for certain nothing travels over the internet. 1. **Prepare.** The same event downloaded on both phones, Bluetooth on and "Share check-ins over Bluetooth" on. The checklist in the Connection test is fully green on both phones. 2. **Find each other.** Open the scanning screen on both phones, one to two metres apart, and wait fifteen seconds. The counter shows at least one scanner on both phones. 3. **Connection test.** Start the test on one phone via Settings → Gate sync → Connection test. You see the name of the other phone, with a response time behind it. 4. **The real test.** Phone A scans a valid ticket. Phone B scans the same ticket within ten seconds and turns red: already scanned, with your colleague's name and the time. 5. **The latecomer.** Close the app on phone B, let A scan three tickets, start B again and open the scanning screen. Within about half a minute B knows those three scans too. 6. **Distance.** Walk 30 to 50 metres apart and watch the counter: it falls back to 0. Come closer again; the connection recovers within about half a minute. Steps 4 and 5 are the real test. That is where it shows whether a ticket scanned elsewhere also turns red for you. The rest only proves that the phones can see each other. # Not working? Run through this list - **Bluetooth is off** → switch it on. Flight mode is fine, as long as Bluetooth goes back on. - **The other phone is not on the scanning screen** → open it. In the background or in a pocket it does nothing. - **You are on a different event or a different day** → pick the same event on both phones. - **The event has not been downloaded for offline use** → download it first. - **"Share check-ins over Bluetooth" is off** → switch it on in the screen where you pick the entrance. - **On Android: permission for "nearby devices" was denied** → allow it in the phone's system settings. - **Too far apart or too many walls in between** → move closer together. Still nothing? Your check-ins continue as normal and reach the server as soon as there is internet again. Report the problem to the organiser, with the time and the names of both phones. # In short - Install the official app and sign in with the e-mail address from your invitation plus the six-digit code. - Download the event for offline use on the day itself and switch on sharing check-ins over Bluetooth. - Run the Connection test until every line is green. - Test with a colleague whether the same ticket turns red on the second phone — that is the proof you are ready. Half an hour of preparation saves you a queue at the gate on the day. Frequently asked questions ## Frequently asked questions ## Which app do I need as a steward? The official MijnEvent app from the App Store or Google Play. For events with more than 50 visitors that app is a must; scanning through a browser is not enough there. ## How do I sign in to the scanning app? Enter the e-mail address on which you received the invitation. You immediately get a six-digit code by e-mail, which you type into the app. If you steward for several organisations, you then pick the right one. ## Why do I have to download the event for offline use? On event sites the network drops out more often than you would expect. With the event downloaded, scanning simply keeps working; check-ins reach the server as soon as there is a connection again. Download on the day itself so the ticket list is current. ## What does "Share check-ins over Bluetooth" do? Scanners at the same entrance exchange their check-ins over Bluetooth. When your colleague scans a ticket, your phone knows within a few seconds — even without internet. That way the same ticket cannot go green twice. Range is roughly 10 to 30 metres with a clear line of sight, and it only works with the scanning screen open. ## How do I test scanning with a colleague beforehand? Download the same event on both phones, switch on Bluetooth and "Share check-ins over Bluetooth", and open the scanning screen on both. Scan one valid ticket on phone A and, within ten seconds, the same ticket on phone B. B should turn red: already scanned, with your colleague's name and the time. [ Back to blog ](https://mijnevent.nl/en/blog) MijnEvent ## Read more [ ![](https://regify-mijnevent.s3.eu-central-1.amazonaws.com/blog/covers/evenement-2027-aanmelden-evenementenkalender.webp) permits MijnEvent · 28 September 2026 · 6 min read ## Planning an event in the Netherlands in 2027? Many towns want it on their calendar by 1 October This week, a string of Dutch municipalities close registration for their 2027 events calendar. It isn't a permit application, but it is where your date gets locked in — and latecomers go to the back of the queue with police and emergency services. ](https://mijnevent.nl/en/blog/event-2027-municipal-events-calendar-deadline) [ ![](https://regify-mijnevent.s3.eu-central-1.amazonaws.com/blog/covers/besloten-ticketverkoop-met-toegangscode.webp) private sales Jasper Koers · 22 September 2026 · 5 min read ## Private ticket sales: an event that can only be ordered with a code The staff party, the tickets for sponsors, the group booking of a travel company: you want to handle them online, but not among your regular events. With an access code the event cannot be found, and only the people you invite can order. ](https://mijnevent.nl/en/blog/private-ticket-sales-with-an-access-code) [ ![](https://regify-mijnevent.s3.eu-central-1.amazonaws.com/blog/covers/rustige-ticketshop-event-groepen-en-ticketgroepen.webp) ticket shop Jasper Koers · 22 September 2026 · 6 min read ## Many events, still a calm ticket shop Three festival days, camping, parking and a row of separate events: your ticket shop quickly turns into a long list of prices. With event groups, collapsed ticket groups and a notice in the right place, your visitor chooses step by step. ](https://mijnevent.nl/en/blog/calm-ticket-shop-event-groups-and-ticket-groups) MijnEvent ## Ready to get started? Create a free account and sell your first tickets today. [Start free](https://mijnevent.nl/registreer) [Pricing](https://mijnevent.nl/en/pricing)