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Diagnosing a Recommendation CTR Drop

Hard
HardMetricsDiagnosis

Problem

If iHerb's recommendation engine's click-through rate dropped by 10% overnight, how would you go about diagnosing the issue?

Practicing as: Product Manager interview at iHerb

Hi, I'll play your iHerb interviewer for the Product Manager role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.

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iHerb Product Manager Interview Questions
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