10 Customer Interview Questions for a Business Idea

Ask a potential customer about a recent experience: what happened, what they tried, and what they spent or gave up. You can use those details to decide which problem deserves a test. An interview gives you a person's account of their experience. You still need to test whether they will choose and use your offer.

These ten questions help you prepare that conversation and turn your notes into a more precise customer problem. Choose the questions that fit the person and follow their account instead of rushing through a script.

Choose the experience you want to understand

Before inviting anyone, finish this sentence: “I want to understand how [a specific group] handles [a specific situation].” You might focus on makers handling orders after a weekend market or consultants arranging their first client appointments.

Speak with people who have faced that situation. A friend can help if they fit your intended customer group; encouragement from someone outside the group answers a different question.

Ask for a 20-minute conversation, explain how you will use the notes, and make clear that participation is optional. Ask permission before recording. Offer a phone call or written exchange if that fits the person's schedule or access needs. Keep personal details out of notes you share.

Sample invitation to adapt: “I'm learning how makers handle orders after a weekend market. Could I ask about your experience for 20 minutes? I'll use the notes to decide which problem to investigate. This is a research conversation, and you can skip any question. A phone call or written exchange would work.”

Find people to interview

Start with the experience you need to understand, then choose a route to people who have faced it:

• Ask for an introduction. Describe the experience to a contact and ask them to check whether a suitable person wants an introduction before sharing their details.
• Use a relevant professional or local group. Follow its community rules, get permission where required, and invite people to opt in to a short research conversation.
• Choose a public business contact. Find an individual business that fits the situation and use its appropriate public contact channel. Explain why you chose them and send a polite invitation. Avoid scraped lists and bulk messages.

A few unanswered invitations leave recruitment unresolved. Check the fit, channel and effort you ask of the person before drawing conclusions about demand. Silence does not explain whether they saw the message, had time to respond or experience the problem.

Ten customer interview questions

1. Tell me about the last time this happened.

Start with an event the person can remember. Ask what triggered it and what they did next. If they speak in general terms, invite them to walk through one example.

2. What were you trying to accomplish?

Give the person room to name the outcome. Someone comparing booking tools might want clients to choose a time without a long exchange of messages. They may have little interest in the extra features you planned to build.

3. What made that difficult, if anything?

Leave room for “nothing.” Ask about the part they mention before suggesting explanations such as cost or lack of time. You want to understand their difficulty without supplying one for them.

4. What did you do to handle it?

Ask about the sequence: the first attempt, the next step, and the outcome. They may have bought something, asked another person, used a workaround, or chosen to leave the situation alone.

5. What worked well about that approach? What would you change?

Explore both. A customer may tolerate extra work because their current approach costs little or feels familiar. You need to understand what they would want to keep if they changed providers.

6. What did you spend or give up?

Let the person describe time, money, missed opportunities, or another consequence. Ask how they estimated it. Record an estimate as an estimate, and distinguish a cost they incurred from a loss they fear.

7. How many times have you faced this in the past month or season?

Choose a period that fits the situation. Ask about the circumstances each time. A holiday rush and a routine weekly task may call for different offers.

8. Who chose the approach, and who paid for it?

The person doing the work may need someone else's approval to buy help. Ask how they made the last decision and who took part. For a household purchase, another family member may share that decision.

9. How did you judge whether the result was good enough?

Ask what they checked after the event. Then ask what they wanted to improve. You can use their answer to define a result a customer could recognize, such as fewer missed orders or less time spent arranging appointments.

10. What have I missed or misunderstood?

Summarize the main point in your own words and invite a correction. Thank the person and ask permission to follow up. Keep any later invitation to try an offer separate from the research conversation.

Keep your notes separate from your explanation

Use a short record for each conversation. Preserve exact wording when you have it; label a paraphrase as a paraphrase.

• Context: customer group, situation and date of the event.
• Reported experience: what the person said happened, including their current approach.
• Supporting detail: a cost estimate, sequence of steps, or item they chose to show you. Do not request private customer or account information.
• Your interpretation: what you think their account means and another possible explanation.
• Next check: the question or action that could support or challenge your interpretation.

Hypothetical example: A maker says she spent two hours matching messages to orders after a market. You could interpret this as a need for order-tracking software. Another explanation is that she needs one consistent way to record orders at the booth. Ask how she recorded them and which step consumed the time before choosing a solution. Her account does not establish that she wants a new app or will pay for one.

Compare people facing the same situation

Review accounts from one customer group together. Look for a recurring trigger, a consequence people can describe, and action they have taken. Keep cases that contradict your idea: customers who feel satisfied, rarely face the problem, or lack authority to change the process.

A few interviews can help you refine a question. They cannot tell you how common the problem is across a market. Avoid converting a small set of conversations into a percentage of customers who will buy.

If you hear “I would buy that,” record it as stated interest. To investigate a purchase decision, ask about a past purchase or plan a separate, honest offer test with a stated price and delivery terms.

Prepare your next conversation in 20 minutes

1. Write the customer group and situation you want to understand.
2. Choose five questions from this guide and add one follow-up for the assumption you most need to check.
3. List three people who fit that situation. Draft an invitation that explains the purpose and time required.
4. Make space in your notes for evidence that could change your mind.

After the conversation, revise your customer-problem statement. Continue with the same group if you need to understand a recurring difficulty in more detail. Revise the situation or customer group if you hear a different need. Pause your proposed solution if people describe an approach that already works for them. Write down the reason for your choice and the next piece of evidence you need.

Related decision guides

Still choosing which idea to investigate? Read How to Know Whether Your Business Idea Is Worth Testing. Once you can describe a customer problem, use How to Test Your First Business Offer to plan the next step.

Sources and further reading

The GOV.UK guide to in-depth interviews covers participant selection, consent and open questions about real experiences. The SBA's market research guidance places interviews alongside research into demand, alternatives and market conditions. The exercise and hypothetical example above are original MVC teaching tools.

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