How We Collected 600+ Event Feedback Responses in 2 Days Without Any Attendee Data

When you don’t have attendee data, no registrations, and zero CRM access – how do you still collect meaningful feedback?
We still got 600 responses. Here’s how we made it happen.
Thousands of Attendees, Zero Data
A while ago, an e-commerce brand from Indonesia reached out with a simple request –they wanted to collect post-event feedback.
The catch?
It was free and open to the public.
- No ticketing.
- No sign-ups.
- No attendee database.
So… no WhatsApp numbers, no emails, no CRM list. Just thousands of attendees and no way to reach them once they left.
The Problem: How Do You Collect Feedback Without Data?
We brainstormed for days.
- WhatsApp won’t work.
- Email? Out of the question.
- Behavioral tracking? Too expensive.
Why Post-Event Feedback Often Fails
Most post-event surveys are sent hours or days later – and by then, attendees have moved on.
Response rates drop.
Memory fades.
Emotions dull.
That’s why in-the-moment feedback works.
It captures honest, emotional, and actionable responses while the experience is still fresh.
→ Don’t wait. Ask while it matters.
The Idea: Flip the Funnel – Feedback On The Spot
Then we flipped the question: 2 team members
- What if we captured feedback live – right there at the venue?
- What if we didn’t wait until after the event?
That changed everything.
The Solution: QR Codes + People On the Ground = Real-Time Feedback
We deployed an insanely simple setup:
- Printed QR codes and placed them across key locations –food stalls, exits, chill zones.
- Sent 2 team members to the event.
- Their job? No signups. No forms. Just a simple question: “Scan this to share your experience.”
No heavy tech.
No fancy tools.
Just QR codes + human touch.
The Impact: Instant Fixes & Honest Feedback
Within hours of Day 1, feedback started flowing in – and not just generic stuff.
- “The AC isn’t cooling in Hall B.”
- “Water stations are out of order.”
- “It’s hard to find the product showcase area.”
These weren’t post-event survey results buried in spreadsheets.
They were live insights. And the event team acted on the spot. By Day 2, problems were fixed.
The Real Gold? Brand Perception – Captured Live
Beyond the ops issues, we uncovered insights that marketing teams dream of:
- Did attendees connect with the brand’s messaging?
- Did the brand attract the right audience?
Did people feel something about the brand?
Feedback that would normally take weeks of post-event research..
we got there in 2 days – with just 2 people and a few QR codes.
The Outcome: 600+ Genuine Responses – Zero CRM
- No attendee list? No problem.
- Low budget? Doesn’t matter.
- No automation? You don’t need it (yet).
This simple setup – powered by a couple of on-ground reps and a few well-placed QR codes – delivered 600+ valid, rich responses, shaping both immediate action and long-term brand strategy.
Repeatable Success: 20+ Events and Counting
That single experiment turned into a playbook. That one experiment has now been replicated at 20+ events – from auto expos to college fests to government conferences.
The results? Consistently strong.
What you need:
- 1-2 volunteers
- QR codes placed smartly
- A dashboard to track responses live
That’s it.
No rocket science. Just real-time insight, made simple.
The Only Variable? Your Willingness to Try Something New
So the next time someone says…
“We can’t get feedback – we don’t have attendee data.”
You know what to say:
You don’t need data to start. You just need access.
And maybe… a few QR codes.