503 Errors When Calling Comms-API

Minor · Started Sep 17, 2026 · 8:57 AM

Duration

< 1m
Severity

Minor
Detection lead

—
User reports

—

Summary

503 Errors When Calling Comms-API

Starting on 2026-09-16 ~19:00 UTC customers were experiencing 503 errors while calling comms-api messages endpoints. 128 requests took 1 minute and eventually got failed by the timeout. After 19:30 there were no 503 errors observed anymore but the root cause of the issue is unclear.

Started

Sep 17, 2026 · 8:57 AM
Resolved

Sep 17, 2026 · 8:57 AM
Duration

< 1m
Severity

None

Event timeline

How this incident unfolded

✓

Resolved
Sep 17 · 8:57 AM SendGrid

Starting on 2026-09-16 ~19:00 UTC customers were experiencing 503 errors while calling comms-api messages endpoints. 128 requests took 1 minute and eventually got failed by the timeout. After 19:30 there were no 503 errors observed anymore but the root cause of the issue is unclear.