What caused the sudden 30% decrease in dealer inquiries through CarGurus's messaging platform last week?

Introduction

The sudden 30% decrease in dealer inquiries through CarGurus's messaging platform last week is a critical issue that demands immediate attention. This significant drop in a key performance indicator could have far-reaching implications for our business model and user satisfaction. I'll approach this problem systematically, focusing on identifying the root cause, validating hypotheses, and developing both short-term and long-term solutions.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be a recent change. Has there been any significant platform update or feature release in the past two weeks?

Why it matters: Recent changes often correlate with sudden metric shifts. Expected answer: Yes, a minor UI update was rolled out. Impact on approach: If confirmed, we'd focus on the update's impact on user experience.

• Considering user segments, I'm curious about the distribution. Is this decrease uniform across all dealer types, or are certain segments more affected?

Why it matters: Segmentation helps pinpoint if the issue is global or specific to certain users. Expected answer: Smaller dealerships are more affected. Impact on approach: We'd investigate factors unique to smaller dealers' platform usage.

• Given the specificity of the 30% figure, I'm wondering about our measurement accuracy. Have there been any changes to our analytics tools or how we define "dealer inquiries" recently?

Why it matters: Ensures we're not chasing a phantom problem due to measurement errors. Expected answer: No changes to analytics or definitions. Impact on approach: If confirmed, we'd focus on actual user behavior changes rather than measurement issues.

• Considering external factors, has there been any significant change in the automotive market or competitor actions in the past week?

Why it matters: External events can dramatically impact user behavior. Expected answer: No major market shifts, but a competitor launched a new feature. Impact on approach: We'd investigate how the competitor's action might be affecting our platform usage.