PM interview questions / Root Cause
Messages sent on a messaging app fell 10% week on week. How would you investigate?
Root Cause Medium 20 min mock Meta
How to approach it
- Before hypothesising, make sure the drop is real and well defined.
- Try cutting the drop by a few dimensions to see where it concentrates.
- Has anything changed on our side recently?
Practise it out loud
Run a 20-minute mock of this question with an AI interviewer. Ask clarifying questions, work through the case by voice or typing, and get a report that scores each part of your answer from what you said.