Went through the Box PM loop earlier this year for a senior PM role. Three rounds with product, one with an engineering partner, one with a cross-functional stakeholder (sales, I think). Sharing what actually got asked because most PM interview guides are written for consumer companies and Box is enterprise through and through. The questions are different.
Product design: They gave me a prompt about improving an enterprise workflow in Box. Not "design Instagram for the blind." Real B2B stuff. What I found is they care a lot about how you think about admins vs. end users, because in enterprise software those are often different people with different incentives. The IT admin who buys Box has different success metrics than the employee who uses it daily. If you frame product decisions without acknowledging that tension, you'll feel the pushback.
Estimation: I got a market sizing question about a Box expansion scenario. Less about the number, more about how you structure the problem and whether your assumptions are defensible.
Analytical / metrics: They asked me to define success for a (fictional) new feature. Then drilled into: what's your north star, what are your guardrail metrics, how would you know if the feature hurt something you weren't tracking? Classic PM metrics loop but they went three levels deep.
Strategy: One question was essentially about competitive positioning. Box vs. SharePoint/Teams, Box vs. Google Workspace. They want to know you understand the enterprise sales motion, not just the product surface.
Behavioral: Standard STAR format. Heavily weighted toward cross-functional conflict, difficult stakeholder situations, and shipping something that didn't go as planned.
One thing that surprised me: the engineering partner round wasn't about coding, but they did ask how I think about technical debt conversations and how I prioritize infrastructure work alongside feature work. Have an opinion on that.
Overall: harder than I expected, more strategic than most PM interviews I've done at consumer companies.