# Twilio: Elevated HTTP 400 Errors for Programmable Messaging

> Twilio status incident “Elevated HTTP 400 Errors for Programmable Messaging” on 2021-12-10: impact minor (vendor’s label), 2.1 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/b03p42zr7460
Last updated: 2021-12-11T01:16:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-12-10 23:07 UTC · Resolved: 2021-12-11 01:16 UTC · Duration: 2.1 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/b03p42zr7460](https://status.twilio.com/incidents/b03p42zr7460)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-12-11 01:16 UTC: Our investigation concludes that these elevated HTTP 400 errors were legitimate responses triggered by the traffic behavior of a small subset of customers. Programmable Messaging API has been operational since the resolution of the API incident: https://status.twilio.com/incidents/ztxfwntyhgqd. The incident is now resolved.

_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 Twilio, started 2021-12-10 23:07 UTC, resolved after 2.1 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/b03p42zr7460
- Citation: Twilio, “Elevated HTTP 400 Errors for Programmable Messaging” (2021-12-10 23:07 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/b03p42zr7460 (CC BY 4.0).
- Markdown link: `[Twilio: Elevated HTTP 400 Errors for Programmable Messaging (2021-12-10)](https://rewindex.com/company/twilio/incidents/b03p42zr7460)`


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Canonical: https://rewindex.com/company/twilio/incidents/b03p42zr7460 · Markdown: https://rewindex.com/company/twilio/incidents/b03p42zr7460.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/b03p42zr7460 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:10:08.546Z