Outage in Iterable

Ingestion Delays and API Failures on C18

Resolved Minor
July 28, 2025 - Started about 2 months ago - Lasted 28 minutes
Official incident page

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Outage Details

Beginning at 2:30 AM PDT, Iterable Engineering detected an issue with our C18 clusters leading to delays on user updates, list uploads, user deletion, and event processing. Additionally, there were failures on API calls to endpoints such as event/track for a period of time. Next update at 3:45 AM PDT or sooner.
Latest Updates ( sorted recent to last )
RESOLVED about 2 months ago - at 07/28/2025 10:48AM

The system has finished working on backlog of data and the data is caught up. All systems are operational and have no issues.
Engineering will continue to monitor the cluster performance.

MONITORING about 2 months ago - at 07/28/2025 10:39AM

We are continuing to monitor for any further issues.

MONITORING about 2 months ago - at 07/28/2025 10:39AM

Ingestion lag for C18 is recovering and success rates for all services are back to normal. We will continue to monitor the cluster until the ingestion backlog has fully cleared.

Next update at 4:30 AM PDT or sooner.

INVESTIGATING about 2 months ago - at 07/28/2025 10:21AM

Beginning at 2:30 AM PDT, Iterable Engineering detected an issue with our C18 clusters leading to delays on user updates, list uploads, user deletion, and event processing. Additionally, there were failures on API calls to endpoints such as event/track for a period of time.

Next update at 3:45 AM PDT or sooner.

Latest Iterable outages

Iterable Auth service degraded - about 1 month ago
Slow Journey Processing - 3 months ago
Ingestion Delays - 3 months ago

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