Zero-Party Data: What It Is and How to Collect It

Zero-party data is information a customer chooses to share with you on purpose: their preferences, interests, plans and how they want to hear from you. Think of a poll answer, a quiz result or a "what are you shopping for?" question at signup. Nobody guessed it from clicks or bought it from a broker. The customer told you.

That makes zero-party data the most accurate data a marketer can own. It's also hard to collect, because people only share it when they get something back. This guide covers what zero-party data is, how it differs from first-party data, and 6 ways to collect it at live events, where guests are more willing to share than almost anywhere else.

What Is Zero-Party Data?

Zero-party data is data a person intentionally and proactively shares with a brand. Forrester introduced the term in 2018 to separate it from first-party data a brand observes on its own.

Common zero-party data examples:

• Answers to a poll or quiz

• Product interests chosen at signup

• Communication preferences, like SMS, WhatsApp or email, and how often

• Purchase intent, such as "I plan to buy in the next 3 months"

• Survey and feedback answers

• Personal context, such as "student, alumni or fan"

The key word is intent. The customer knows what they're sharing and why.

Zero-Party Data vs First-Party Data

Both types belong to you, and both come straight from your audience. The difference is how you get them.

• Zero-party data is what customers tell you. Poll answers, stated preferences and survey replies. It reveals intent and motivation.

• First-party data is what you observe. Purchases, site visits, email clicks and event check-ins. It reveals behavior.

• Consent works differently. Zero-party data comes with consent built in, because people share it on purpose. First-party data needs a clear privacy notice.

• Accuracy has different limits. Zero-party data is what people say, which can differ from what they do. First-party data is what people do, but you have to infer why.

Many teams treat zero-party data as a subset of first-party data, and that works in practice. What matters is using both: behavior shows what people do, and stated preferences explain why. For the wider category, see these first-party data examples from real events.

Why Zero-Party Data Matters for Event Marketers

Events have a data problem. Thousands of people walk through a brand activation, and most leave as anonymous foot traffic. A badge scan or a bowl of business cards tells you who showed up, not what they want.

Zero-party data fixes that. When a guest tells you they're a returning customer, which product they came to try or whether they want an offer, you can:

• Segment follow-up by interest instead of sending one message to everyone

• Prove the event reached the audience you paid to reach

• Personalize offers without guessing

• Hand sales and CRM teams answers they can act on

People are also more open in person. They chose to come, they're having a good time, and you can give them something right away in return.

How to Collect Zero-Party Data: 6 Methods That Work at Events

One rule sits behind every method below: ask for one thing at a time, and give something back right away.

1. Ask One Question at Signup

Keep the signup short, then add a single question that shapes your follow-up. At Temple University's game day tailgate, fans signed up for their FanCam photos and entered a giveaway by replying 1, 2 or 3: student, alumni or general fan.

450+ fans signed up at the tailgate alone, and 61% engaged with the poll. One question gave Temple a clean segment for every fan, with no form to fill in. See how the Temple FanCam worked.

2. Run a Live Poll by Text

Polls feel like part of the experience, not data collection. Send a question by SMS or WhatsApp during the event and let guests reply with a number. Replying takes 2 seconds, so people answer fast. At Temple, 40% of fans replied in under 3 minutes.

3. Let Guests Vote or Play

Games turn opinions into data. At Espolon's Cocktail Fights in Houston, guests voted on the secret ingredient over WhatsApp instead of just watching. From 110+ signups, the event produced 560+ messages and 50+ guest responses. Read the Espolon case study.

4. Ask for Preferences When You Deliver Something

Event photos are one of the strongest reasons to opt in. When a guest receives their photos by SMS or WhatsApp, the same thread can ask what they'd like to hear about next. They're already looking at the message, and every answer goes straight to their profile.

5. Close With a Short Survey

A closing survey captures how guests felt while the event is still fresh. Aperol's Day Club at Coachella ended its message journey with a short NPS survey, and survey replies enriched each guest's profile. Across the 2025 and 2026 Day Clubs, Aperol built 4,000+ first-party profiles. Read the Aperol Coachella case study.

For question ideas, use this list of post-event survey questions.

6. Make the Value Exchange Clear

People share when the trade is obvious. Giveaways, exclusive content, early access and discounts all work. Vita Coco gave guests at its sampling tour branded photos plus a 50% off offer in the same text. The result: 450+ reachable CRM profiles from a walk-up sampling stand. Read the Vita Coco case study.

Zero-Party Data Examples From Real Events

• Temple FanCam: fans told Temple whether they were students, alumni or general fans by text reply. 450+ signups at one tailgate and 61% poll engagement.

• Aperol Day Club at Coachella: guests answered questions through the weekend and a closing survey. 4,000+ first-party profiles over two years.

• Espolon Cocktail Fights: guests voted and answered quizzes on WhatsApp. 50+ guest responses from 110+ signups.

Best Practices for Collecting Zero-Party Data

• Ask only what you'll use. Every question should change what you send next.

• Explain the value. "Tell us what you like and we'll only send you offers that fit."

• Make answering easy. Replying with a number beats typing a sentence.

• Respect consent. Make opt-in clear and opting out easy. Temple's opt-out rate stayed at 2%.

• Connect it to your CRM. Answers that sit in a spreadsheet after the event lose value fast.

Zero-Party Data FAQ

Is zero-party data the same as first-party data?

Not quite. Both come directly from your audience. Zero-party data is what people choose to tell you, like preferences and poll answers. First-party data is what you observe, like purchases and visits. Many teams group them together.

Who came up with the term zero-party data?

Forrester introduced the term in 2018.

Is zero-party data privacy-friendly?

It's consent-based by design, because people share it on purpose. You still need clear consent for marketing messages and a privacy notice that explains how you use the data.

What's the easiest way to collect zero-party data at an event?

Ask one question when guests sign up for something they want, like their event photos. A single question with a reply-by-number answer takes seconds.

Collect Zero-Party Data at Your Next Event

Impulse delivers event photos to guests by SMS or WhatsApp in under 60 seconds, with no app required. In the same flow, you collect the answers and consent you need, ready for your CRM. See how event photo sharing turns into event lead capture, or book a demo.