# Substack: Open Rate Reporting Incident

> Substack status incident “Open Rate Reporting Incident” on 2021-01-19: impact minor (vendor’s label), 3 d, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/substack/incidents/py13df5d30v0
Last updated: 2021-01-22T17:57:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-01-19 18:37 UTC · Resolved: 2021-01-22 17:57 UTC · Duration: 3 d
- Updates: 1
- [Vendor status page: https://substack.statuspage.io/incidents/py13df5d30v0](https://substack.statuspage.io/incidents/py13df5d30v0)
- [Company: Substack](https://rewindex.com/company/substack.md)

## Timeline of updates

- **resolved** 2021-01-22 17:57 UTC: This incident has been resolved. We've backfilled open events that were missing, and open rates should now correctly reflect reality.

_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: minor) posted by Substack, started 2021-01-19 18:37 UTC, resolved after 3 d, 1 update(s).

- Canonical URL: https://rewindex.com/company/substack/incidents/py13df5d30v0
- Citation: Substack, “Open Rate Reporting Incident” (2021-01-19 18:37 UTC). Archived by Rewindex: https://rewindex.com/company/substack/incidents/py13df5d30v0 (CC BY 4.0).
- Markdown link: `[Substack: Open Rate Reporting Incident (2021-01-19)](https://rewindex.com/company/substack/incidents/py13df5d30v0)`


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Canonical: https://rewindex.com/company/substack/incidents/py13df5d30v0 · Markdown: https://rewindex.com/company/substack/incidents/py13df5d30v0.md · JSON: https://rewindex.com/api/v1/companies/substack/incidents/py13df5d30v0 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:51:17.802Z