Iterable Outage History — Downtime & Incident Records

90-Day Trend

Monthly Uptime

Month	Uptime	Days Tracked	Days with Issues
April 2026	100%	10	0
March 2026	90.3%	31	3
February 2026	95.7%	23	1

Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.

Daily Status (Last 64 Days)

Feb 6 Today

Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

March 2026

Ingestion and processing delay

minor

Started: Mar 25, 7:00 PM

monitoring

We have caught up with ingestion. Currently monitoring our systems.

Mar 25, 7:17 PM

investigating

Current status We have identified an issue in our ingestion service that can cause some updates to be delayed. Customer impact Some customers are seeing delays in list uploads and events appearing in Iterable, in some cases taking 30+ minutes to render. Clusters impacted 22,25,16 Rolled back to a previous stable version across all affected clusters and verified the deployments. We are monitoring ingestion lag and key metrics to confirm performance is stabilizing and that no new update loss ...

Mar 25, 7:00 PM

Customers on c102 are experiencing degraded performance

minor

Started: Mar 17, 6:07 PM

monitoring

Engineering has restored C102 back to a "green" state and ingestion and API calls are succeeding again for this cluster. We will continue to monitor until we are fully through the accumulated backlog. Next update at 1 PM PDT or sooner.

Mar 17, 7:00 PM

investigating

Engineering is continuing to investigate this issue. At this time there is no improvement yet to any customers on C102. Next Update at 12:15 PDT or sooner.

Mar 17, 6:43 PM

investigating

We are currently investigating an issue for one of ES clusters - c102 - The cluster is in a red state, leading to very slow ingestion and widespread API 500 errors. Customers are experiencing failed searches and errors on multiple API endpoints. Ingestion rates are near zero, with lag up to 20 minutes and increasing for internal, realtime, and bulk data pipelines.

Mar 17, 6:07 PM

Proof Send Functionality Degraded

minor

Started: Mar 16, 4:18 PM

monitoring

The engineering team has implemented a fix and proofs are now successfully sending. We will continue to monitor. Next update at 12:00 PST or earlier.

Mar 16, 5:09 PM

investigating

We have been alerted to an issue where proofs sends are not being sent as expected as of 9:00 am PT. Iterable Engineers are actively investigating the issue. Next update by 11:00 am PT or sooner.

Mar 16, 4:18 PM