What factors are contributing to the increased error rate in Form3's API integration for direct debits this quarter?

Introduction

The increased error rate in Form3's API integration for direct debits this quarter is a critical issue that demands immediate attention. As we delve into this product root cause analysis, we'll systematically examine potential factors contributing to this problem. Our approach will involve clarifying the context, ruling out external factors, understanding the product journey, breaking down the metric, gathering relevant data, forming hypotheses, and ultimately developing a comprehensive resolution plan.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be a recent change in the API. Has there been any update to the Form3 API or integration process in the last quarter?

Why it matters: Recent changes often correlate with performance issues. Expected answer: Yes, there was an API update. Impact on approach: If confirmed, we'd focus on the changes made and their potential impact.

• Considering user segments, I'm curious about the distribution of errors. Are we seeing this increased error rate across all clients or is it concentrated in specific segments?

Why it matters: Helps identify if the issue is systemic or limited to certain user groups. Expected answer: The error rate increase is seen across multiple segments. Impact on approach: A widespread issue would suggest a core API problem rather than client-specific issues.

• Thinking about the error types, I'm wondering if we're seeing a specific error message or a variety of errors. What are the most common error messages or codes associated with these failures?

Why it matters: Different error types point to different root causes. Expected answer: There's a predominant error code related to authentication. Impact on approach: This would narrow our focus to authentication mechanisms and related systems.

• Considering performance metrics, I'm interested in the scale of the issue. What's the percentage increase in error rate compared to the previous quarter?

Why it matters: Helps quantify the severity and urgency of the problem. Expected answer: The error rate has increased by about 20%. Impact on approach: A significant increase would prioritize this issue and potentially involve more resources in the resolution.