The best sales interview questions ask candidates what they actually did in specific customer situations — how they agreed on the purpose of a conversation, found the real cause of a problem, offered options and led to a clear decision — rather than how they would pitch a product. Below are 24 questions grouped by those stages, what strong and weak answers sound like, a short role-play script to use in the interview, and a simple way to score it.
Key facts
- Question type: behavioural ("tell me about a time…"), because past behaviour is easier to check than hypothetical answers
- Structure: 6 groups, following the Sales ARC™ phases plus honesty and learning speed
- Add-on: a 10 to 15 minute role play with hidden facts
- Scoring: 1 to 5 per group, scored independently before interviewers discuss
- Works for: B2B and B2C roles where customers make decisions with consequences
Why do standard sales interview questions miss the point?
Standard sales interview questions mostly test how well a candidate presents: "Why should we hire you?", "What is your biggest achievement?", "Sell me this pen." A confident candidate can answer all of them well without ever showing whether they understand customers.
In Diagnostic Sales™, a good sales conversation moves through four phases of Sales ARC™: Agreement, Root Cause, Choices and Soft Landing. The questions below are organised the same way, so each answer tells you something about one part of the job. Two more groups cover honesty and learning speed, because a diagnostic seller has to be willing to say "this is not right for you" and has to learn your products and customers quickly. If your team already works with another framework, such as SPIN or Sandler, the same questions still apply; the comparison of sales methodologies shows how the approaches differ.
Agreement: permission and purpose
These questions show whether the candidate sets up a conversation before running it.
- 1. "Tell me about the last first meeting you had with a customer. How did it start?"
- 2. "How do you find out what a customer expects from a conversation with you?"
- 3. "Describe a time a customer was in a hurry. What did you do?"
- 4. "How do you let a customer know that it is fine for them to say no?"
Strong answers describe agreeing on time and purpose, and asking whether it is all right to ask some questions first. Weak answers go straight to "I introduce our company and products."
Root Cause: finding the real problem
These questions show whether the candidate looks beneath the first problem the customer names.
- 5. "Tell me about a customer who asked for one thing but needed something else. How did you find out?"
- 6. "When a customer says a product is too expensive, what do you do next?"
- 7. "What questions do you ask to understand a customer's situation?"
- 8. "Describe a time you realised you had misunderstood a customer. What happened?"
- 9. "How do you tell the difference between what a customer knows and what they assume?"
Strong answers contain specific questions the candidate asked and what those questions revealed. Weak answers jump from the customer's request to the product the candidate recommended.
Choices: options that follow from the diagnosis
These questions show whether the candidate offers real options or one product.
- 10. "Tell me about a time you gave a customer several options. How did you choose which ones?"
- 11. "How do you help a customer who cannot decide between two options?"
- 12. "When have you recommended a cheaper option than the customer expected?"
- 13. "How do you separate what a customer must have from what would be nice to have?"
Strong answers link each option to something the customer said, and include "wait" or "do nothing for now" as a valid option. Weak answers offer the premium version by default, or a list of everything in the catalogue.
Soft Landing: the next step and the decision
These questions show whether the candidate leads to a clear outcome without pressure.
- 14. "How do your customer conversations usually end?"
- 15. "Tell me about a customer who said they needed to think about it. What did you do?"
- 16. "How do you make sure a customer is still comfortable with a decision a week later?"
- 17. "Describe a sale you lost. When did you know, and what did you learn?"
Strong answers end with a clear yes, no or not yet, with an owner and a date, and show interest in whether the decision was good for the customer. Weak answers describe follow-up calls until the customer gives in, or leave the ending vague.
Honesty: telling a customer the truth
These questions show whether the candidate will protect the customer, and your reputation, when it costs a sale.
- 18. "Tell me about a time you told a customer your product was not right for them."
- 19. "Have you ever sent a customer to a competitor? Why?"
- 20. "What do you do when you do not know the answer to a customer's question?"
- 21. "Describe a time you disagreed with your manager about how to handle a customer."
Strong answers are specific and calm: the candidate explains what was wrong for the customer and what happened next. Weak answers say it has never happened, or describe the situation as a failure of the customer.
Learning speed: how quickly they adapt
These questions show how the candidate learns, which matters more than what they already know.
- 22. "What is the last thing you changed in the way you sell, and why?"
- 23. "How did you learn the products in your last job? How long did it take before you were confident?"
- 24. "Tell me about feedback that was hard to hear. What did you do with it?"
Strong answers name a concrete change and its effect. Weak answers stay general ("I am always learning") or blame the feedback.
A short role-play script for the interview
Questions show what a candidate says they do. A role play shows what they actually do. Keep it short, use the same script for every candidate, and score it on the same groups as the questions. For more on running a fair test, see the sales assessment test guide.
Setup for the candidate: "I will play a customer. Your goal is to help me make a good decision. You have ten minutes."
Customer's opening line (B2C example): "Our water heater is too small. I want a bigger one. What do you have?"
Customer's opening line (B2B example): "Our current software plan is too slow. We need the bigger plan. Can you send a quote?"
Hidden facts for the interviewer playing the customer (reveal them only if the candidate asks):
- the real cause is not capacity: in the B2C case, everyone showers at the same time every morning; in the B2B case, the team imports data in a way that slows everything down;
- there is a hard constraint: limited space in the B2C case, a fixed budget this year in the B2B case;
- someone else is part of the decision: a partner, or a finance director;
- the customer will not accept a long installation or migration that stops daily life or work.
What to watch for:
- Does the candidate agree on the purpose of the conversation before asking about details?
- Do they ask why it is "too small" or "too slow", or go straight to the bigger model?
- Do they find the constraint and the other decision-maker?
- Do they offer options that fit the real cause, including one that does not need the bigger product?
- Does it end with a clear next step that includes the other decision-maker?
After the role play, give one piece of feedback, for example "You moved to the product before you knew why it was too small", and run three more minutes. The change between the two rounds is your best evidence of learning speed.
How to score sales interview answers
Use a 1 to 5 score for each of the six groups and the role play. Write the score before you discuss the candidate with anyone.
- 1: no example, or an example that shows the opposite behaviour.
- 3: a relevant example, but general, or with the right behaviour mixed with pushing.
- 5: a specific, recent example in which the candidate clearly did what the group describes, and can explain why.
Three rules make the scores more reliable:
- Score evidence from past behaviour higher than descriptions of what the candidate would do.
- Ask every candidate the same core questions, so scores are comparable.
- Set a minimum score for Root Cause and honesty. A candidate who cannot find the real problem, or will not tell a customer the truth, is a risk no matter how well they present.
Interview questions are one step in the process. The full sequence, from defining the role to the first months on the job, is in how to hire a salesperson who can diagnose. If you want the same simulated customer for every candidate, the AI Integration from Diagnostic Sales™ includes a hiring simulation: candidates hold a conversation with a simulated customer, complete a learning-velocity test and answer situational questions, with results by dimension, installed on the company's own infrastructure.
Frequently asked questions
What questions should I ask in a sales interview?
Ask behavioural questions about specific past customer situations: how the candidate started a first meeting, found the real problem behind a request, offered options, ended a conversation with a clear decision, told a customer a product was not right, and changed the way they sell after feedback.
What is a role play sales interview?
A role play sales interview is a short exercise in which the interviewer plays a customer and the candidate leads the conversation. It works best with a fixed opening line, hidden facts the candidate has to discover, a scoring rubric, and a short second round after one piece of feedback.
What are good behavioural sales interview questions?
Good behavioural sales interview questions start with "Tell me about a time…" and focus on what the candidate did. Examples: "Tell me about a customer who asked for one thing but needed something else" and "Tell me about a time you told a customer your product was not right for them."
How do you score sales interview answers?
Score each group of questions from 1 to 5, based on how specific and relevant the candidate's example is. Every interviewer scores independently before discussing. Set minimum scores for the most important dimensions, such as finding the root cause and honesty, instead of relying only on a total.
Should I ask "sell me this pen" in a sales interview?
"Sell me this pen" mainly tests how quickly a candidate can pitch. It can be useful only if you watch whether the candidate asks questions about the buyer before selling. A realistic role play from your own market shows the same thing more clearly.
Conclusion
The right sales interview questions show whether a candidate diagnoses before advising: they ask about real situations, follow the stages of a good customer conversation and are backed by a short role play. If you want to review how your company interviews salespeople, book a free initial conversation. After it, Miroslav suggests the next steps.