MongoDB Atlas change history: Intermittent 503 Errors on Atlas Admin API and Automation Tooling

MongoDB Atlas reported a major degradation: intermittent HTTP 503 errors affected Atlas Admin API and automation tooling such as Terraform; requests typically succeeded on retry, while database connectivity remained healthy. It lasted 39 h 50 min, from 2026-03-25 21:31 UTC to 2026-03-27 13:21 UTC. MongoDB identified the root cause and applied a fix, without specifying details.