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

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.