# CircleCI: Duplicate Notifications

> CircleCI status incident “Duplicate Notifications” on 2025-12-02: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/circleci/incidents/qq3x5734kbw9
Last updated: 2025-12-02T02:00:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2025-12-02 02:00 UTC · Resolved: 2025-12-02 02:00 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.circleci.com/incidents/qq3x5734kbw9](https://status.circleci.com/incidents/qq3x5734kbw9)
- [Company: CircleCI](https://rewindex.com/company/circleci.md)

## Timeline of updates

- **resolved** 2025-12-02 02:00 UTC: Between Dec 2, 2025 16:20 UTC and Dec 3, 2025 14:27 UTC, a change deployed to our workflow execution system caused duplicate notifications to be sent to some customers and triggered unexpected auto-reruns for a small number of projects. Impact: - Some customers received multiple failure notification emails for the same workflow. - The number of duplicate notifications varied based on how many jobs in the workflow were affected (e.g., marked skipped or cancelled). - A subset of customers may have received duplicate Slack notifications. - A small number of projects experienced duplicated auto-reruns. The issue has been fully mitigated, and notification behavior has returned to normal. We appreciate your patience while our team resolved this issue.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: none) posted by CircleCI, started 2025-12-02 02:00 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/circleci/incidents/qq3x5734kbw9
- Citation: CircleCI, “Duplicate Notifications” (2025-12-02 02:00 UTC). Archived by Rewindex: https://rewindex.com/company/circleci/incidents/qq3x5734kbw9 (CC BY 4.0).
- Markdown link: `[CircleCI: Duplicate Notifications (2025-12-02)](https://rewindex.com/company/circleci/incidents/qq3x5734kbw9)`


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Canonical: https://rewindex.com/company/circleci/incidents/qq3x5734kbw9 · Markdown: https://rewindex.com/company/circleci/incidents/qq3x5734kbw9.md · JSON: https://rewindex.com/api/v1/companies/circleci/incidents/qq3x5734kbw9 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:30:53.274Z