Slack Thread: Notification Service Follow-up 31

Date: 2025-12-29 Channel: #eng-incident Service: Notification Service Incident Reference: INC-2025-501 Jira Reference: ACME-5011 GitHub Reference: GH-5015

Noah Garcia: We are reviewing INC-2025-501 for Notification Service. The main concern is whether the remediation in ACME-5011 also covers downstream impact to Checkout Service and Billing Service.

Elena Rossi: 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.

Sam Rivera: Please make sure GitHub item GH-5015 includes contract tests for API API-NOTIFICATION-04 and an update to the runbook.

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

Maya Chen: Decision: keep ACME-5011 open until staging replay passes and the incident review confirms no unsupported customer-impact claims.