Segment change history

Some customers could not log in to the Segment app via SSO, affecting Web Interface (US). Segment marked the incident major; it ran from 2026-09-10 14:28 UTC to 2026-09-10 15:39 UTC, lasting 1 h 11 min. Segment reported mitigation and fully restored SSO login but did not disclose the root cause.

Segment reported a major outage affecting Engage UI page loads, including Audiences and Journeys, in the US. The incident started at 2026-09-03 18:30 UTC and lasted 4 h 11 min, resolving at 2026-09-03 22:41 UTC; a fix was applied at 09-03 20:26 UTC, restoring full UI functionality.

Segment reported a major incident causing intermittent login errors for a subset of customers, affecting Web Interface (EU) and Web Interface (US). It started at 2026-08-18 17:49 UTC and was resolved at 2026-08-18 22:02 UTC, lasting 4 h 13 min; login was reported operating normally at 18:38 UTC.

Segment reported a major data processing issue affecting Data Processing Pipeline (US), Engage (US), and Journeys (US) from 2026-07-26 01:43 UTC to 2026-07-26 04:10 UTC, lasting 2 h 27 min. A fix was implemented by 03:02 UTC, and the incident was resolved.

Segment reported major Connections processing delays affecting Streaming Destinations (US), delaying destination delivery. The incident started at 2026-07-25 22:45 UTC and resolved at 2026-07-26 04:39 UTC, lasting 5 h 53 min. A fix was implemented at 07-25 23:39 UTC, with processing latency recovering under monitoring.

Segment reported major degradation in US West 2 affecting Linked Audiences, Linked Events, Reverse ETL, and Profile Sync; syncs and data processing could fail due to an upstream Snowflake outage. It started at 2026-06-22 22:14 UTC and resolved at 2026-06-23 00:22 UTC, lasting 2 h 7 min. Functionality recovered after Snowflake’s outage resolved; no customer action was required.

Segment reported a major incident affecting Audience Previews, which failed to load for some customers across the EU and US web interfaces. It started at 2026-04-13 19:02 UTC and was resolved at 2026-04-13 19:19 UTC, lasting 16 min; Segment confirmed Audience Preview was operating normally.

Certain Segment Reverse ETL syncs in the EU and US failed in a major-impact outage starting 2026-04-09 16:40 UTC and resolved at 2026-04-09 19:53 UTC, lasting 3 h 12 min. Segment reported implementing a fix, after which syncs proceeded successfully without failures.

Segment reported a major incident affecting Yahoo DSP Streaming Destinations in EU and US, with elevated ETIMEDOUT and "504 - Gateway Time-out" errors. It started at 2026-01-22 13:33 UTC and resolved at 2026-01-22 17:37 UTC, lasting 4 h 3 min; Segment worked with Yahoo support and reported mitigation before resolution.

Segment reported a major outage affecting Snowflake RETL sources and Warehouse Destinations, with Linked Audiences, Linked Events, Reverse ETL and Warehouse Destinations affected in EU and US. Attributed to a Snowflake outage, it ran from 2025-12-16 06:37 UTC to 2025-12-16 16:55 UTC, lasting 10 h 17 min; Segment marked it resolved without specifying a fix.

Segment reported a major incident involving elevated Google Enhanced Conversions failures affecting Streaming Destinations (US), from 2025-09-19 03:59 UTC to 2025-09-19 10:08 UTC (6 h 9 min). A fix was implemented and the incident was resolved; no cause was stated.