Demand Planner
Posted Aug 10, 2026 · We last checked this listing on Oct 6, 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.
About your past
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?
What they are checking: 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.
What they are checking: 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.
What they are checking: 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?
What they are checking: initiative and follow-through on process improvement, which the role explicitly asks for
What would you do
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?
What they are checking: 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?
What they are checking: 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?
What they are checking: communication skill translating technical forecasting concepts to operational audiences
About the work
Walk me through how you'd build a statistical demand forecast for a product line with strong seasonality and some promotional activity mixed in.
What they are checking: 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?
What they are checking: 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?
What they are checking: 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?
What they are checking: 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?
What they are checking: 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?
What they are checking: understanding of why data hygiene matters beyond their own immediate task
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As published by Generac.