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

**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)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-05 18:54 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://status.zapier.com/incidents/01M46PNZQTBTNRCQVW1WZ8846V](https://status.zapier.com/incidents/01M46PNZQTBTNRCQVW1WZ8846V)
- [Company: Zapier](https://rewindex.com/company/zapier.md)
- Versions: before (none: first archived) → after incident\_version:62/01M46PNZQTBTNRCQVW1WZ8846V@f603fed0dc51
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Logging into Zapier using Facebook or Microsoft SSO shown a blank page after authentication.
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-05 18:54 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-05 19:46 UTC
```

**6. Added: Update** (investigating) · 2026-10-05 18:54 UTC

```diff
+ 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.
```

**7. Added: Update** (monitoring) · 2026-10-05 19:42 UTC

```diff
+ 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.
```

**8. Added: Update** (resolved) · 2026-10-05 19:46 UTC

```diff
+ 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.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-05 18:54 UTC | Major incident: Logging into Zapier using Facebook or Microsoft SSO shown a blank page after authentication. (this change) | outage |

All Zapier changes: [timeline](https://rewindex.com/company/zapier/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/ic2581830fa3aa6 · Markdown: https://rewindex.com/change/ic2581830fa3aa6.md · JSON: https://rewindex.com/api/v1/changes/ic2581830fa3aa6 · Generated 2026-10-18T01:52:40.908Z