# Expo: Sending FCM Push Notifications Results in an INVALID_CREDENTIALS Error

> Expo status incident “Sending FCM Push Notifications Results in an INVALID_CREDENTIALS Error” on 2019-07-26: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/expo/incidents/5npr4ryqd4y3
Last updated: 2019-07-26T21:12:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2019-07-26 21:12 UTC · Resolved: 2019-07-26 21:12 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.expo.dev/incidents/5npr4ryqd4y3](https://status.expo.dev/incidents/5npr4ryqd4y3)
- [Company: Expo](https://rewindex.com/company/expo.md)

## Timeline of updates

- **resolved** 2019-07-26 21:12 UTC: Issue identified at Jul 18, 08:35 PDT. Upon sending an Android push notification, FCM responded with an INVALID\_CREDENTIALS error. This was correlated with an issue with Expo CLI where attempting to upload an FCM server key resulted in an Unknown error. The fix for both of these issues landed in production. You should be able to send FCM push notifications and upload FCM keys to our servers without problems. Thank you for your patience! Resolved at Jul 18, 10:42 PDT.

_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 Expo, started 2019-07-26 21:12 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/expo/incidents/5npr4ryqd4y3
- Citation: Expo, “Sending FCM Push Notifications Results in an INVALID_CREDENTIALS Error” (2019-07-26 21:12 UTC). Archived by Rewindex: https://rewindex.com/company/expo/incidents/5npr4ryqd4y3 (CC BY 4.0).
- Markdown link: `[Expo: Sending FCM Push Notifications Results in an INVALID_CREDENTIALS Error (2019-07-26)](https://rewindex.com/company/expo/incidents/5npr4ryqd4y3)`


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Canonical: https://rewindex.com/company/expo/incidents/5npr4ryqd4y3 · Markdown: https://rewindex.com/company/expo/incidents/5npr4ryqd4y3.md · JSON: https://rewindex.com/api/v1/companies/expo/incidents/5npr4ryqd4y3 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:27:44.892Z