What factors are causing the sudden increase in failed transactions on Cashify's mobile app payment gateway?

Introduction

The sudden increase in failed transactions on Cashify's mobile app payment gateway is a critical issue that demands immediate attention. This problem directly impacts user experience, revenue, and trust in our platform. I'll approach this analysis systematically, focusing on identifying potential root causes, validating hypotheses, and developing both short-term fixes and long-term solutions.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be a recent change. Has there been any recent update to the app or payment gateway integration?

Why it matters: Recent changes often correlate with performance issues. Expected answer: Yes, a recent update was deployed. Impact on approach: If yes, we'll focus on the changes made in that update.

• Considering user segments, I'm wondering if this is affecting all users equally. Are we seeing the issue across all user segments or is it concentrated in specific groups?

Why it matters: Helps narrow down potential causes and affected areas. Expected answer: The issue is more prevalent among Android users. Impact on approach: If segmented, we'll investigate platform-specific issues.

• Thinking about transaction types, I'm curious if this is happening for all payment methods. Is the increase in failed transactions consistent across all payment methods (credit cards, debit cards, digital wallets)?

Why it matters: Different payment methods might have different integration points or dependencies. Expected answer: The issue is primarily affecting credit card transactions. Impact on approach: We'll focus on credit card processing flow if that's the case.

• Considering external factors, I'm wondering about any recent changes in our payment processor relationships. Have we switched or updated any of our payment processing partnerships recently?

Why it matters: Changes in external partnerships can sometimes lead to integration issues. Expected answer: No recent changes in payment processors. Impact on approach: If no changes, we'll focus more on internal factors.