# Zapier: Logging into Zapier using Facebook or Microsoft SSO shown a blank page after authentication.

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-10-05 18:54 UTC · Resolved: 2026-10-05 19:46 UTC · Duration: 51 min
- Updates: 3 · Affected components: Login
- [Vendor status page: https://status.zapier.com/incidents/01M46PNZQTBTNRCQVW1WZ8846V](https://status.zapier.com/incidents/01M46PNZQTBTNRCQVW1WZ8846V)
- [Company: Zapier](https://rewindex.com/company/zapier.md)

## Summary

Zapier reported a major outage affecting Facebook and Microsoft SSO: authentication succeeded, but users saw a blank page; a hard refresh or new tab allowed access. It started at 2026-10-05 18:54 UTC and was resolved at 2026-10-05 19:46 UTC, lasting 51 min. Engineering released a fix and confirmed both SSO methods were working. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-10-05 18:54 UTC: Our Engineering team is aware of an issue affecting users who sign into Zapier.com "Zapier.com": http://Zapier.com using Facebook or Microsoft Single Sign-On (SSO). Users logging into Zapier with these services will see a blank screen after authenticating. The login authentication is successful; however, the page can be accessed after a hard refresh or by opening a new tab. We are investigating the issue and will give another update as soon as we find the cause.
- **monitoring** 2026-10-05 19:42 UTC: Our Engineering team has identified the issue and has released a fix. We're now monitoring our systems to see if there are any other problems that could result from the fix.
- **resolved** 2026-10-05 19:46 UTC: The issue is now considered resolved, with both Facebook and Microsoft single sign-on working as expected. If you find yourself still unable to log in, please reach out to our Support team at zapier.com/get-help "zapier.com/get-help": http://zapier.com/get-help Thank you for your patience as we worked to resolve the issue.

## Rewindex changes for this incident

- 2026-10-05 18:54 UTC: [Major incident: Logging into Zapier using Facebook or Microsoft SSO shown a blank page after authentication.](https://rewindex.com/change/ic2581830fa3aa6.md)


---
Canonical: https://rewindex.com/company/zapier/incidents/01M46PNZQTBTNRCQVW1WZ8846V · Markdown: https://rewindex.com/company/zapier/incidents/01M46PNZQTBTNRCQVW1WZ8846V.md · JSON: https://rewindex.com/api/v1/companies/zapier/incidents/01M46PNZQTBTNRCQVW1WZ8846V · Generated 2026-10-18T10:45:19.477Z