Slack Thread: Notification Service Follow-up 09

Date: 2026-04-16 Channel: #sre-ops Service: Notification Service Incident Reference: INC-2026-509 Jira Reference: ACME-5009 GitHub Reference: GH-5013

Priya Shah: We are reviewing INC-2026-509 for Notification Service. The main concern is whether the remediation in ACME-5009 also covers downstream impact to Checkout Service and Billing Service.

Noah Garcia: I checked traces for Authentication Service, Inventory Service, and Notification Service. The correlation IDs line up with the incident timeline, but the highest error rate stays inside Notification Service.

Elena Rossi: Please make sure GitHub item GH-5013 includes contract tests for API API-NOTIFICATION-02 and an update to the runbook.

Sam Rivera: Agreed. I will add release readiness notes, dashboard screenshots, and a rollback checkpoint before this goes to canary.

Jordan Kim: Decision: keep ACME-5009 open until staging replay passes and the incident review confirms no unsupported customer-impact claims.