Slack Thread: Notification Service Follow-up 12

Date: 2026-05-19 Channel: #platform-architecture Service: Notification Service Incident Reference: INC-2025-502 Jira Reference: ACME-5012 GitHub Reference: GH-5016

Sam Rivera: We are reviewing INC-2025-502 for Notification Service. The main concern is whether the remediation in ACME-5012 also covers downstream impact to Checkout Service and Billing Service.

Jordan Kim: 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.

Maya Chen: Please make sure GitHub item GH-5016 includes contract tests for API API-NOTIFICATION-01 and an update to the runbook.

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

Priya Shah: Decision: keep ACME-5012 open until staging replay passes and the incident review confirms no unsupported customer-impact claims.