Customer Discovery

What Customer Discovery means in practice

Customer discovery inverts the instinct to pitch. The goal is to understand someone's world well enough to know whether your idea fits into it — which means the interview should be almost entirely about their existing behaviour, not your concept.

The reliable questions are about the past and the concrete: what did you do last time this happened, what does it currently cost you, what have you already tried, what did you pay for it. Past behaviour is fact. Questions about the future — would you use this, would you pay for this — invite people to be encouraging, and they reliably are.

The strongest finding is evidence of a workaround. Someone maintaining an elaborate spreadsheet, paying a contractor, or manually stitching two tools together has already proven the problem is worth effort and money. Discovering an existing workaround is far more valuable than any expression of interest in your solution.

Worked example

Interviewing operations managers about a reporting tool.

• Weak question: 'Would you use a tool that automates your weekly reports?' — invites a polite yes.
• Strong question: 'Walk me through how you produced last week's report.'
• Answer: four hours across three tools, with a manually maintained spreadsheet bridging two of them.

Takeaway: The second question surfaced a four-hour weekly cost and an existing workaround — quantified evidence of a real problem, rather than a hypothetical yes.

Common mistakes

• Pitching the idea, which turns the interview into a sales call and contaminates every answer.
• Asking hypothetical future questions instead of about concrete past behaviour.
• Interviewing people who are convenient rather than people who match the buyer profile.
• Hearing agreement as validation instead of probing for what they currently do and pay.

Related tool: Market research guide.

Related terms

• Idea Validation — Idea validation is the process of gathering evidence that a business idea solves a real, urgent problem people will pay for — before committing significant time or money to building it.
• Problem-Solution Fit — Problem-solution fit is the stage at which you have confirmed a real, urgent problem exists and that your proposed solution genuinely addresses it — the milestone before product-market fit.
• Ideal Customer Profile — An ideal customer profile (ICP) is a precise description of the type of customer who gets the most value from your product, is cheapest to acquire, and stays longest — used to focus sales, marketing and product decisions.
• Minimum Viable Product — A minimum viable product (MVP) is the smallest version of a product that delivers real value to real users and produces reliable learning about whether the underlying idea works.

Last reviewed 8 August 2026