How to Monitor Event Delivery in Amazon EventBridge

When I first started using Amazon EventBridge more heavily, I realized something important pretty quickly: it is very easy to build event-driven flows, but much harder to know when delivery is degrading before things break . This post is specifically about best practices for monitoring event delivery in EventBridge (not just target-side application monitoring). AWS actually has strong guidance here, and the key is to monitor a combination of retry, success, failure, DLQ, and latency metrics together instead of looking at a single number in isolation. I’ll walk through: what to monitor what I alert on (and why) an architecture pattern that works well practical alarm design so you do not get spammed all day Why this matters AWS recommends monitoring EventBridge delivery behavior because underperforming or undersized targets can cause excessive retries, delivery delays, and permanent delivery failures . They also explicitly recommend combining multiple metrics and setting alarms/dashboard