Validation & Discovery
Customer Discovery
Customer discovery is the process of talking to potential customers to understand their problems, behaviors, and willingness to pay, before committing to a solution.
Also known as: customer discovery, customer development
Why it matters
Discovery is where you replace assumptions with evidence. Every startup begins as a stack of guesses about who has the problem, how badly, and what they will pay to solve it. Customer discovery, done with Mom Test discipline, turns those guesses into facts you can build on. Skipping it is how founders spend a year building something nobody asked for.
Worked example
Before building, you interview 20 people in your target ICP about how they handle the problem today, what it costs them, and what they have already tried. The patterns across those conversations point to the real opportunity.
Common mistakes
- Talking only to friends and people who will agree with you.
- Leading the witness instead of listening (see the Mom Test).
- Stopping after three interviews, before any patterns emerge.
Frequently asked questions
What is customer discovery?
The process of talking to potential customers to understand their problems, behaviors, and willingness to pay before committing to a solution. It replaces your assumptions with evidence from the market.
How is customer discovery different from market research?
Market research often means reports and aggregate data. Customer discovery is direct, qualitative conversation with specific people in your target market. It surfaces the why behind the numbers.
How many people should you talk to in customer discovery?
Keep going until patterns repeat, often 15 to 30 per segment. Fewer than that and you are reacting to noise. Stop when interviews stop teaching you something new.
When should you do customer discovery?
Before you build, continuously as you grow, and whenever you consider a new market or major feature. The biggest mistake is treating it as a one-time phase. Discovery never really ends.
What is the goal of customer discovery?
To confirm a real, frequent, expensive problem exists for a reachable group, and to learn how they solve it today. If you cannot find that, the idea is not ready. If you can, you know what to build.
How do you find people to interview?
Go where your target customers already gather: communities, subreddits, LinkedIn, events, or warm intros. Cold outreach works if your message is specific and respectful of their time. Avoid only talking to friends.
Related terms
More in Validation & Discovery
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Last updated 2026-06-02 · Back to the glossary