Why are Messenger Rooms links expiring after 30 minutes?

Introduction

Messenger Rooms links expiring after 30 minutes presents a critical issue that could significantly impact user experience and product adoption. I'll approach this problem systematically, focusing on identifying the root cause, 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 this might be a recent change. When did we first notice this issue?

Why it matters: Helps pinpoint potential causes related to recent updates or changes. Expected answer: Within the last week or two. Impact on approach: Recent changes would focus our investigation on recent deployments or updates.

• Considering user segments, I'm curious if this affects all users or a specific group. Are we seeing this across all user types and regions?

Why it matters: Identifies whether it's a global issue or limited to certain user segments or geographical areas. Expected answer: It's affecting all users globally. Impact on approach: A global issue suggests a core system problem rather than a localized or user-specific issue.

• Given the specific 30-minute timeframe, I'm wondering if this aligns with any system processes. Do we have any background processes or security checks that run on a 30-minute cycle?

Why it matters: Could reveal if the expiration is tied to an intentional or unintentional system process. Expected answer: There are some security checks that run periodically, but not specifically on a 30-minute cycle. Impact on approach: Would guide us to investigate system processes and their potential impact on link expiration.

• Considering recent product changes, have we made any updates to our link generation or room creation processes in the past month?

Why it matters: Recent changes could be directly related to the issue. Expected answer: A minor update was made to the link generation algorithm two weeks ago. Impact on approach: Would focus our investigation on the recent update and its potential unintended consequences.