# Sigma Computing: CloudFront outage US-EAST-1

> Sigma Computing status incident “CloudFront outage US-EAST-1” on 2023-08-02: impact minor (vendor’s label), -20696 min, 2 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5
Last updated: 2023-08-02T16:49:38Z

- Impact (vendor’s label): minor
- Status: postmortem
- Started: 2023-08-02 01:26 UTC · Resolved: 2023-07-18 16:30 UTC · Duration: -20696 min
- Updates: 2
- [Vendor status page: https://stspg.io/knh58b206dfg](https://stspg.io/knh58b206dfg)
- [Company: Sigma Computing](https://rewindex.com/company/sigma-computing.md)

## Timeline of updates

- **resolved** 2023-07-18 16:30 UTC: Backdated incident: CloudFront outage US-EAST-1 Impacted Cloud Regions & Services: Sigma users accessing the application from the Eastern US were impacted, receiving 421 error pages when attempting to log in or access workbooks. Scheduled exports and API services were unaffected. Incident Start Time: July 18, 2023 16:37AM UTC Incident End Time: July 18, 2023 17:13AM UTC We have performed a root cause analysis (RCA) and have published the findings in a postmortem note on the Sigma Community site.
- **postmortem** 2023-08-02 16:49 UTC: Sigma Engineering has completed the postmortem of this incident. A Root Cause Analysis (RCA) is available on the Sigma Community site: Postmortem for July 18, 2023 incident: Sigma outage for users using AWS/CloudFront US-EAST-1 (https://community.sigmacomputing.com/t/postmortem-for-july-18-2023-incident-sigma-outage-for-users-using-aws-cloudfront-us-east-1/2497)

## Cite this

Status incident (vendor impact label: minor) posted by Sigma Computing, started 2023-08-02 01:26 UTC, resolved after -20696 min, 2 update(s).

- Canonical URL: https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5
- Citation: Sigma Computing, “CloudFront outage US-EAST-1” (2023-08-02 01:26 UTC). Archived by Rewindex: https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5 (CC BY 4.0).
- Markdown link: `[Sigma Computing: CloudFront outage US-EAST-1 (2023-08-02)](https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5)`


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Canonical: https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5 · Markdown: https://rewindex.com/company/sigma-computing/incidents/122dghmh7tz5.md · JSON: https://rewindex.com/api/v1/companies/sigma-computing/incidents/122dghmh7tz5 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:11:19.986Z