Event voucher system
Event voucher system for single-use perks, drinks, and entry offers
Issue unique QR vouchers for events, then let staff validate them at the door, bar, booth, or venue. Each voucher works once, and you get the redemption data after the event.
One per attendee.
The problem
Why event vouchers break without validation
Event offers move fast. Drink vouchers get screenshotted, sponsor perks get forwarded, and the person at the booth needs an answer while the line keeps growing.
Without Coupon Carrier
- The same voucher gets shared between attendees
- Bar, booth, and door staff make manual calls
- Spreadsheets cannot update across busy redemption points
- Post-event reporting is incomplete or anecdotal
With Coupon Carrier
- Each attendee gets a unique voucher
- Staff scan or mark vouchers used on a phone
- The scanner answers with a clear message, such as Accepted or Already redeemed
- Redemptions are logged for post-event reporting
The redemption layer
A fast redemption flow for event staff
Each attendee gets their own voucher, which they can show from an email, a voucher link on their phone, or a printed QR handout. Staff validate it in the browser, and the voucher locks after use. The same QR code coupon redemption flow works for retail counters, bars, and entry points.
Coupon Carrier gives each customer a unique voucher link or QR code. At redemption, staff either tap Mark as Used or scan the QR code. Once redeemed, the voucher is locked and cannot be used again, and the redemption is recorded.
How it works
How the event voucher flow works
Two ways to verify
QR scanning for high-traffic redemption
Coupon Carrier supports two common in-person validation flows.
Mark-as-Used
Best when staff can tap the customer’s voucher page directly. Simple for restaurants, bars, retail counters, and small teams.
QR code scanning
Best when staff should validate from their own device. Useful for events, venues, busy lines, multi-location campaigns, and printed vouchers.
Voucher status
Event staff see a clear status
Accepted
The voucher was valid and is now redeemed. The attendee can receive the drink, perk, entry offer, or sample.
Already redeemed
The voucher was redeemed earlier, so a screenshot or forwarded link should not be accepted.
Maximum redemptions reached
The voucher has been used as many times as it allows, so staff decline it the same way every time.
Invalid code
The QR code does not match a voucher that can be redeemed. Expired vouchers cannot be redeemed either.
Example campaign
Example: free drink voucher at a venue
Goal
Give each registered attendee one drink voucher without letting the voucher be reused at the bar.
Setup
Create a voucher campaign and send a unique QR voucher after event registration.
Customer flow
The attendee opens the email at the venue and shows the QR code to bar staff.
Staff flow
Staff scan the QR code with a phone. The scan redeems the voucher, and if the scanner shows Accepted, they serve the drink.
Result
The event team can see how many drink vouchers were issued, how many were redeemed, and how many went unused.
Why it matters
Why not use paper drink tickets or a shared QR code?
Paper tickets and shared codes are familiar, but they leave staff to take the guest’s word for it at the bar or booth. That is usually where event costs leak.
Paper tickets can be copied or passed around
A printed generic ticket does not know who it belongs to or whether it was used already.
Shared QR codes become public quickly
One screenshot can turn a controlled perk into an open offer.
Spreadsheets fail across busy staff teams
Multiple bars, booths, or doors need the same live status at the same time.
Who this is for
Events, venues, activations, and trade shows
- Organizers issuing free drink vouchers or food festival samples
- Venues managing entry perks, VIP upgrades, or merch discounts
- Brands running sponsor activation offers
- Trade show teams giving out booth rewards or lead-capture perks
Related use cases
Keep exploring real-world voucher redemption
Coupon validation system
See what staff see when they check a voucher.
Explore coupon validation systemQR code redemption system
Use a phone scanner for QR voucher redemption.
Explore qr code redemption systemSingle-use voucher system
Learn how one voucher per person prevents reuse.
Explore single-use voucher systemCommon questions
Questions teams ask before launch
Will this slow down staff at the door, bar, or booth?
Do customers need an app?
Do staff need special hardware?
Does this require POS integration?
Can vouchers be reused?
Can we track who redeemed each voucher?
Can we use printed vouchers?
Want to see the redemption flow yourself?
Try a demo voucher for your business. Mark it as used, then open it again to check its status.
7-day free trial · 30-day money-back guarantee · In-person redemption, staff verification, and full tracking included.