Mixpanel incident: Temporary Data Ingestion Delay for US Projects

Affected components

• Ingestion API Availability (US)

1. postmortemJul 16, 2026, 23:47 UTC

   # Summary Between approximately **11:35 PM PT on July 10 and 7:19 AM PT on July 11, 2026**, data ingestion for Mixpanel projects in the US region ran behind by up to ~2 hours. During this window, reports and dashboards temporarily showed incomplete data — recent time ranges could appear as sharp, artificial drops in metrics such as active users or revenue. **No data was lost.** All events were queued durably and processed in full once the backlog cleared; metrics returned to accurate values on their own, with no customer action required. The cause originated in our ingestion controls: for a small number of very high-volume projects, the ingestion rates we allowed had drifted out of alignment with the capacity provisioned for those projects. Large historical imports — entirely legitimate use of the platform — were therefore admitted faster than their infrastructure could absorb, and two properties of our pipeline turned that localized overload into a region-wide delay. The fixes below

2. resolvedJul 11, 2026, 15:54 UTC

   This incident has been resolved.

3. monitoringJul 11, 2026, 14:25 UTC

   A fix has been implemented and we are monitoring the results.

4. identifiedJul 11, 2026, 12:54 UTC

   We are continuing to work on a fix for this issue.

5. identifiedJul 11, 2026, 10:15 UTC

   The issue has been identified and a fix is being implemented.

6. investigatingJul 11, 2026, 09:17 UTC

   We are continuing to investigate this issue.

7. investigatingJul 11, 2026, 07:53 UTC

   We are currently experiencing delays in our data ingestion pipeline, which is affecting real-time data for projects enrolled in the US projects, resulting in delays for a subset of projects. While no data is being lost, our engineering team is actively investigating the matter and working to restore real-time functionality as quickly as possible. We appreciate your patience during this time. If you have any questions, please <a href="https://mixpanel.com/get-support">contact support.</a>

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Mixpanel's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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How often does Mixpanel have incidents?

Mixpanel reported 4 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 4h 59m. See Mixpanel's uptime and incident history