47 Customer Interview Questions That Write Your Case Study For You

Why the Right Questions Matter More Than the Right Writer

Most case studies fail before a single word is written. They fail in the interview.

Ask vague questions and you'll get vague answers. "How do you like our product?" produces "It's great, we really like it." That's not a case study.

Ask specific, structured questions and your customer will hand you the entire narrative arc. B2B case studies with specific metrics generate 68% more engagement than those with qualitative-only claims.

Situation / Before Questions (10)

1. ●What was your team's primary responsibility before you started looking for a solution?
2. ●How were you handling [specific process] before using our product?
3. ●How many people were involved in that process, and how much time did it take?
4. ●What tools or systems were you using before, and where did they fall short?
5. ●Can you walk me through a typical week dealing with this challenge?
6. ●What was the cost — in time, money, or missed opportunities — of doing things the old way?
7. ●How did this problem affect other teams or departments?
8. ●Had you tried other solutions before? What happened?
9. ●What was the breaking point that made you decide to look for something new?
10. ●If nothing had changed, where would your team be today?

Challenge Questions (8)

1. ●What was the single biggest frustration with your old process?
2. ●What was the impact on your customers or end users?
3. ●Were there any compliance, accuracy, or quality issues?
4. ●How did this challenge affect your team's morale or workload?
5. ●What metrics were you tracking that told you things needed to change?
6. ●Was leadership aware of this problem? How did they view it?
7. ●What would have happened if you hadn't solved this in 6-12 months?
8. ●How much budget or resources were being wasted on workarounds?

Solution / Discovery Questions (8)

1. ●How did you first hear about [your product]?
2. ●What other solutions did you evaluate, and what made you choose us?
3. ●What was the deciding factor in your purchase decision?
4. ●How long did implementation take, and what did that process look like?
5. ●Who was involved in the decision to purchase?
6. ●What were your initial expectations? Were they met?
7. ●Was there anything that surprised you during onboarding?
8. ●How quickly did your team start seeing value?

Results / Impact Questions (12)

1. ●What's the most significant result you've seen since implementing?
2. ●Can you quantify the time savings for your team?
3. ●What's the revenue or cost impact you can attribute to the change?
4. ●How has [specific KPI] changed since you started using our product?
5. ●How many more [units/customers/projects] can your team handle now?
6. ●What's something you can do now that was impossible before?
7. ●How has this affected your relationship with your own customers?
8. ●Has this impacted employee retention or satisfaction?
9. ●What does your leadership team think about the results?
10. ●How has this changed your competitive position?
11. ●If you had to put a dollar value on the total impact, what would it be?
12. ●What would you say to someone on the fence about making this change?

Quote-Worthy Questions (9)

1. ●How would you describe our product to a colleague in one sentence?
2. ●What's the one thing you'd want a skeptic to know?
3. ●If our product disappeared tomorrow, what would you miss most?
4. ●What surprised you most about working with us?
5. ●How would you rate the experience on a scale of 1-10, and why that number?
6. ●What would you tell your past self about making this decision?
7. ●Has this changed how you think about [the broader problem space]?
8. ●Would you recommend us? To whom, and why?
9. ●Is there anything I didn't ask that you think is important to share?

Pro Tips for Better Interviews

Don't read the questions like a script. Pick 12-15 based on the customer and their story.

Follow up on vague answers. "Can you estimate how many hours per week?" The follow-up is where the gold is.

Record everything. You'll miss critical details if you're taking notes live.

Let silence work. After asking a question, wait. Customers often add their most interesting insight after a 3-second pause.

Send results questions in advance so they can look up actual numbers. Don't send quote-worthy questions — those work best when spontaneous.

How AI Interviews Automate This

AI-powered voice interviews ask a curated set of the highest-impact questions, then dynamically follow up based on responses. With StoryVoice, your customer answers 5-7 guided questions in a 5-10 minute voice interview — no scheduling, no call, no transcription.

It's the 47-question framework distilled into a frictionless experience. Try a free interview to see how the questions translate into a finished case study.