Opencare metric investigation: finding why patient conversion fell 25%
Company: Opencare
Role: Product Manager
Category: Analytics & Experimentation
Difficulty: medium
Interview Round: Other
Opencare is an online service where patients find a dentist and book an appointment. Conversions on the platform have fallen by 25%. How would you work out why?
```hint Rate or count
Before listing causes, check whether bookings themselves fell or only the rate did, and whether something changed in the traffic you are dividing by.
```
### Clarifying Questions
- Which conversion fell: visitors who book an appointment, booked appointments that patients actually attend, or dentists who sign up to list their practice?
- Did the 25% drop appear over a day or two or build up over several weeks, and which baseline period is it compared against?
- Is the drop in the conversion rate, in the absolute number of bookings, or both?
- Is it spread across every city and platform (web and mobile apps), or concentrated somewhere?
### What a Strong Answer Covers
- Pinning down the metric definition, the time window, and whether the rate or the volume moved
- Ruling out tracking and data-pipeline problems before investigating patient behavior
- Separating causes outside Opencare (seasonal dental demand, competitors, market changes) from causes inside it (releases, experiments, marketing spend, dentist availability)
- Locating the drop with a booking-funnel breakdown and segmentation by platform, geography, channel and patient type
- Prioritizing hypotheses, confirming the root cause with data, and proposing a fix with ongoing monitoring
### Follow-up Questions
- Suppose the whole drop sits at the step where patients pick a time slot, and only in two cities. What would you look at next?
- If a recent booking-flow change caused the drop but also raised the share of booked appointments that patients attend, how would you decide whether to roll it back?
- Which dashboards or alerts would you set up so a drop like this is caught within a day?
Overview: A product manager metric-investigation prompt about Opencare, the dentist booking service, where conversions have fallen by 25%. It tests whether the candidate clarifies the metric, rules out tracking problems, separates internal from external causes, breaks down the booking funnel by segment and turns the finding into a fix.