What factors are causing the sudden increase in customer complaints about HDFC's mobile banking app over the past month?

Introduction

The sudden increase in customer complaints about HDFC's mobile banking app over the past month is a critical issue that demands immediate attention. As we delve into this product root cause analysis, we'll systematically identify, validate, and address the underlying factors contributing to this surge in dissatisfaction. Our approach will encompass a comprehensive examination of both internal and external elements, ensuring we leave no stone unturned in our quest for resolution.

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 banking app in the last 1-2 months?

Why it matters: Recent changes often correlate with sudden increases in complaints. Expected answer: Yes, there was an update about 5 weeks ago. Impact on approach: If confirmed, we'd focus on changes introduced in that update.

• Considering the nature of complaints, I'm wondering about the specific issues users are reporting. What are the top 3 categories of complaints we're seeing?

Why it matters: Understanding the nature of complaints helps narrow down potential root causes. Expected answer: Login issues, transaction failures, and slow app performance. Impact on approach: This would guide our technical investigation and user journey analysis.

• Given the importance of user segments, I'm curious about the demographics. Are the complaints concentrated in any particular user group (e.g., age, location, device type)?

Why it matters: Segmentation can reveal if the issue is widespread or specific to certain users. Expected answer: Complaints are higher among users with older Android devices. Impact on approach: We'd prioritize investigating compatibility issues with older Android versions.

• Thinking about external factors, I'm considering potential system changes. Have there been any recent updates to the backend systems or APIs that the app interacts with?

Why it matters: Backend changes can sometimes cause unforeseen issues in the app. Expected answer: There was a minor update to the transaction processing system last month. Impact on approach: We'd investigate the interaction between the app and the updated backend system.