Demand Planner
Posted Aug 9, 2026 · We last checked this listing on Sep 20, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
Behavioral
Tell me about a time your forecast was significantly off. What did you find when you did the root cause analysis, and what did you change afterward?
real experience with forecast variance analysis and whether they learn from misses rather than just reporting them
Give me an example of a time you had to get Finance, Sales, and Operations to agree on a forecast assumption when they each wanted something different.
ability to influence without authority across functions, which the posting calls out directly
Tell me about a dashboard or report you built that changed how a team made decisions.
ability to turn analysis into something non-technical stakeholders actually use
What's an example of a continuous improvement idea you pushed for in a forecasting or reporting process, and how did you get it adopted?
initiative and follow-through on process improvement, which the role explicitly asks for
Technical
Walk me through how you'd build a statistical demand forecast for a product line with strong seasonality and some promotional activity mixed in.
whether the candidate understands forecasting methods beyond just pulling a number from a system
What's your experience with SAP or a similar ERP system in the context of demand planning, and what have you actually done inside it day to day?
whether their ERP experience is hands-on and specific or just surface familiarity
Describe the SIOP or IBP process at a place you've worked. What was your role in the monthly cycle?
whether they've actually operated inside a formal demand review cadence, not just heard of one
How do you decide which historical data points to include or exclude when building a baseline forecast, especially around one-time events or anomalies?
judgment in data cleaning and statistical reasoning, not just tool operation
How comfortable are you with Excel and Access for this kind of work, and can you describe something more advanced you've built, like a pivot-based model or a macro?
actual depth of tool skill versus just listing software on a resume
What does master data integrity mean to you in the context of a demand planning system, and what happens downstream if it's wrong?
understanding of why data hygiene matters beyond their own immediate task
Situational
Sales says demand is going to spike next quarter but your statistical model doesn't show it. How do you handle that conversation and what do you do with the forecast?
how they balance data-driven forecasting against stakeholder input without just caving or dismissing it
You've got three forecast reviews due this week, a data quality issue in the system, and a last-minute request from Marketing for a promotional impact estimate. How do you prioritize?
time management and prioritization under the multiple-deadlines pressure the role implies
How would you explain a forecast risk to a plant manager who doesn't think in statistical terms?
communication skill translating technical forecasting concepts to operational audiences
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