Customer discovery

Customer interviews: how to plan, recruit, run and analyze them

A guide to customer interviews in four stages: plan around a decision, recruit people who do the work, ask about real past events, and analyze notes against the decision.

Instant Expert EditorialPublished 6 min read

Customer interviews are one-to-one conversations with people who have the problem you are working on, or who use or buy a product like yours, about what they actually did recently. They are the quickest way to learn how someone does a job, why they chose what they use, and what it cost them when things went wrong.

A useful round of customer interviews has four stages: plan what you need to learn, recruit people who can tell you, run conversations about real past events, and analyze the notes against a decision. This page walks through each stage and points to a detailed guide for each step.

A worked example

Suppose you are building scheduling software for hotel housekeeping teams, and you need to decide whether to focus on independent hotels or small hotel groups first. This example is hypothetical, and we will follow it through each stage.

1. Plan what the interviews are for

Start with the decision, not the questions. "Independent hotels or small groups first?" is a decision. The facts that would change it become your research questions: who builds the housekeeping schedule today, how long it takes, what goes wrong when someone calls in sick, and who would approve paying for a tool.

GOV.UK's research planning guidance recommends turning assumptions and opinions into research questions and prioritizing the most important ones. It suggests 4 to 8 participants per round for in-depth interviews, and several smaller rounds rather than one big one, so you can adjust after each.

For the hotel example, that might mean one round of six interviews: three housekeeping managers at independent hotels and three at small groups.

2. Recruit people who can answer

Interview the person who does the work or makes the decision you are asking about. A general manager may approve the purchase, but the housekeeping manager builds the schedule every morning. Ask early in the call whether they personally handle the task, since titles vary.

Where to find people depends on whether you have customers yet. Existing customers, recent lost deals and people who cancelled are all useful and easy to reach. Before you have customers, look for people doing the work through directories, event programs and people search. The operations professionals in hospitality directory page shows the kinds of people who might fit the hotel example.

3. Run the conversation around real events

GOV.UK's guidance on in-depth interviews gives a practical structure. Get informed consent and explain the research, start with a few easy questions about their job, then work through your topics with open questions and simple follow-ups like "can you tell me more about…?" It recommends focusing on stories and real examples rather than how things should happen, staying quiet so the participant does most of the talking, and leaving time at the end for anything you did not understand.

In the hotel example, "Walk me through this morning's schedule, from when you arrived" will get you further than "How do you schedule housekeepers?" The first gets a specific morning with its problems. The second gets a description of how it is supposed to work.

Keep two habits throughout. Ask about what already happened, not what someone would do in the future. And do not pitch your idea while you are still learning about the problem; people are polite, and praise for an idea tells you little about whether they would pay for it.

4. Analyze the notes against your decision

After each round, write down what each person did, in the same format, before drawing conclusions. Then compare: where do independent hotels and small groups handle sick calls differently, and does that difference matter for the decision? Mark each research question as answered, still unclear or contradicted, and rewrite the next round's questions.

Which guide to read for common problems

ProblemStart here
Nobody replies to your invitationsWhy research outreach gets no replies
Every interview ends with "sounds great"Customer interview questions
You are unsure you are talking to the right personHow to interview B2B users, buyers and champions
You worry payment will bias answersPaying without paying for positive feedback
You need to know how common something isInterviews versus surveys
Your team doubts the findingsRun a research readout with skeptical stakeholders

When a customer interview is the wrong tool

Customer interviews explain reasons and processes for a handful of people. They cannot tell you how common something is across a market; use a survey or existing data for that, after interviews have shown you what to count. And when the question is about how an industry works rather than one person's experience, such as how hotel groups usually buy software, an interview with someone who has seen many cases may answer it faster. How to prepare for an expert interview covers that kind of call.

Getting your first round booked

If you need interviewees outside your own network, search for people by describing the experience you need, for example "housekeeping managers at independent hotels with 50 to 150 rooms." Instant Expert finds people whose work matches your question, you review them, it sends your invitations, and you pay for each call that gets booked.

The working model

The four stages of a round of customer interviews

  1. 1

    Plan

    Write the decision, the facts that would change it, and who can speak to each.

  2. 2

    Recruit

    Invite people who personally do the work or make the decision.

  3. 3

    Run

    Ask them to walk through recent, specific events and follow up on what you do not understand.

  4. 4

    Analyze

    Compare accounts in a consistent format and mark each question answered, unclear or contradicted.

Each round starts from a decision and ends by updating it; the next round's questions come from what is still unclear.