Changes / Snowflake / INC20000063
Snowflake: Critical incident: INC20000063
Summary
Snowflake reported a critical Snowsight authentication outage in AWS - US West (Oregon), preventing access or unexpectedly logging customers out; other Snowflake features were unaffected. It started at 2026-06-30 22:34 UTC and was resolved at 2026-06-30 23:34 UTC, lasting 1 h 0 min. Snowflake implemented a fix and published an RCA link.
Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.
What changed
Before: not present
After: INC20000063
Before: not present
After: critical
Before: not present
After: postmortem
Before: not present
After: 2026-06-30 22:34 UTC
Before: not present
After: 2026-06-30 23:34 UTC
Before: not present
After: Applications, AWS - US West (Oregon) - Applications
Before: not present
After: Current status: We're investigating an issue with Snowsight authentication. We are seeing recovery as of 22:03 UTC and are continuing to monitor. We'll provide an update within 60 minutes.
Customer experience: Customers may be unable to access Snowsight or may experience being logged out unexpectedly. All other Snowflake features are not impacted.
ETA: We have taken action to address the issue and expect it to be resolved as of 22:03 UTC.
Incident start time: 21:47 UTC June 30, 2026
Before: not present
After: Current status: We've implemented the fix for this issue, and we'll continue to monitor the environment until we're confident all services are functioning properly. We'll provide another update within 60 minutes.
Customer experience: Customers hosted in the specified region may have been unable to access Snowsight or may have experienced being logged out unexpectedly. All other Snowflake features were not impacted.
Workaround: While we were focused on remediation, customers who were logged out needed to log back in to Snowsight.
Incident start time: 21:47 UTC June 30, 2026
Incident end time: 22:03 UTC June 30, 2026
Preliminary root cause: A routine system configuration change caused authentication issues with Snowsight. Once identified, the configuration was reverted.
Before: not present
After: Current status: We've implemented the fix for this issue and monitored the environment to confirm that service was restored. If you experience additional issues or have questions, please open a support case via Snowflake Community or the Support page in Snowsight.
Customer experience: Customers hosted in the specified region may have been unable to access Snowsight or may have experienced being logged out unexpectedly. All other Snowflake features were not impacted.
Workaround: While we were focused on remediation, customers who were logged out needed to log back in to Snowsight.
Incident start time: 21:47 UTC June 30, 2026
Incident end time: 22:03 UTC June 30, 2026
Preliminary root cause: A routine system configuration change caused authentication issues with Snowsight. Once identified, the configuration was reverted.
A root cause analysis (RCA) will be conducted and a summary will be shared on the Snowflake status page within 5 business days.
Before: not present
After: Snowflake Engineering has completed the postmortem of this service incident. A detailed Root Cause Analysis \(RCA\) is available on the Snowflake Community site: [https://community.snowflake.com/s/article/INC20000063](https://community.snowflake.com/s/article/INC20000063)
First version of this incident archived by Rewindex. View the live incident (opens in new tab).
History of this incident
| When (UTC) | Change | Kind |
|---|---|---|
| Critical incident: INC20000063 (this change) Snowflake reported a critical Snowsight authentication outage in AWS - US West (Oregon), preventing access or unexpectedly logging customers out; other Snowflake features were unaffected. It started at 2026-06-30 22:34 UTC and was resolved at 2026-06-30 23:34 UTC, lasting 1 h 0 min. Snowflake implemented a fix and published an RCA link. | Major incident |
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