What caused the sudden 30% decrease in new user activations for Aircall's mobile app last week?

Introduction

A sudden 30% decrease in new user activations for Aircall's mobile app last week is a critical issue that demands immediate attention. This significant drop could have far-reaching implications for user growth, revenue, and overall product health. 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 there might have been a recent app update. Has there been any significant changes or updates to the mobile app in the past two weeks?

Why it matters: Recent changes could directly impact user activation. Expected answer: Yes, there was an update released 10 days ago. Impact on approach: If confirmed, we'd focus on analyzing the changes in that update.

• Considering user segments, I'm curious about the activation drop distribution. Is the 30% decrease uniform across all user segments, or is it more pronounced in specific groups?

Why it matters: Helps identify if the issue is global or segment-specific. Expected answer: The decrease is more significant among Android users. Impact on approach: We'd prioritize investigating Android-specific issues.

• Regarding the activation process, has there been any change in how we define or measure "new user activation" recently?

Why it matters: Ensures we're comparing apples to apples in our metrics. Expected answer: No changes in the definition or measurement process. Impact on approach: We can rule out measurement inconsistencies and focus on actual user behavior or technical issues.

• Thinking about external factors, have there been any significant changes in marketing campaigns or user acquisition strategies in the past month?

Why it matters: Changes in user acquisition could affect the quality or quantity of new users attempting to activate. Expected answer: No major changes in marketing or acquisition strategies. Impact on approach: We'd focus more on product-related issues rather than user acquisition factors.