Merchandise Planner Interview Questions UK: 8 Real Questions and What Interviewers Want

Before your Merchandise Planner interview, it helps to see the questions from the interviewer's side. We have picked eight from our set of 12 and added the reason each one gets asked.

Eight Merchandise Planner interview questions, and what the interviewer is thinking

1. What does a merchandise planner do, and what makes a great one?

Why they ask: Checks you understand how planning differs from buying and merchandising and the behaviours it needs.

2. How would you build a sales forecast when last year's figures were distorted by stock-outs or a one-off promotion?

Why they ask: Good forecasting means cleaning history rather than copying it.

3. How would you phase intake into a season, and what stock cover would you aim for?

Why they ask: Intake phasing balances availability, cash and risk.

4. Which forecasting tools and accuracy measures have you used, and how would you judge whether a forecast is good?

Why they ask: Planners are expected to be fluent in systems and measure their own accuracy.

5. An unseasonably hot spell means your summer category is trading 25% above plan in week three. What do you do?

Why they ask: Tests reactive re-forecasting under uncertainty.

6. How do you plan range breadth and depth, and what measures tell you the range is working?

Why they ask: Range planning needs commercial logic about space, productivity and customer choice.

7. A buyer wants to commit to much larger quantities than your plan supports. How do you handle it?

Why they ask: Planners must be able to challenge buyers constructively.

8. Tell me about a time your forecast was significantly wrong. What did you do?

Why they ask: Shows accountability, learning and recovery.

A sample answer to question 1

What does a merchandise planner do, and what makes a great one?

A merchandise planner builds and manages the financial plan for a category: forecasting sales, setting stock and intake levels, planning margin and markdown, and monitoring performance against the plan. While a buyer chooses the product, the planner makes sure the quantity and timing are commercially sensible and affordable, and keeps the business on track financially. A typical week includes updating forecasts, analysing trading, reviewing open-to-buy with the buyer and finance, and recommending actions like reorders, cancellations or markdowns. I think a great planner is numerate, curious and calm under pressure, but also persuasive, because their analysis only helps if the buyer trusts it. They explain the story behind the numbers, challenge respectfully and keep the plan realistic, rather than just reporting what has happened. They also need to understand customers and product, not only spreadsheets. I enjoy being the commercial conscience of the category and helping the team make better decisions.

Common mistake to avoid: Seeing planning as just spreadsheets; underplaying influence skills

Want the rest?

Full model answers, key points and common mistakes for all 12 questions are on the Merchandise Planner interview questions page. The first five are free, no sign-up needed.