INC20000321

Update timeline

1. investigating Oct 30, 2026, 08:38 PM UTC

   Current status: We're investigating an issue with Snowflake Data Cloud. We'll provide an update within 1 hour. Customer experience: Customers hosted in the specified regions may experience errors or connectivity issues when using Snowflake Openflow. Other features that leverage Snowpark Container Services aren't affected by this issue.

2. identified Oct 30, 2026, 09:28 PM UTC

   Current status: We've narrowed our investigation to an issue within the systems that manage connections to Openflow runtimes. We've applied a mitigation in a limited number of cases and are evaluating its effect. We're continuing to investigate the issue and will provide another update within 1 hour. Customer experience: Customers hosted in the specified regions may be unable to access or manage their Openflow runtimes deployed in Snowpark Container Services, including the Openflow canvas. Existing data flows are not affected and continue to process data. Other features that leverage Snowpark Container Services are also not affected by this issue. Impact start time: 17:34 UTC October 30, 2026

3. identified Oct 30, 2026, 10:15 PM UTC

   Current status: We've completed validating our fix and we're implementing it in the affected regions to resolve this issue. We anticipate that the operation will be complete within 4 hours, and affected customers will experience recovery at different times as the fix reaches their environment. We'll provide another update within 4 hours. Customer experience: Customers hosted in the specified regions may be unable to access or manage their Openflow runtimes deployed in Snowpark Container Services. Runtimes may show as active, but opening the Openflow canvas may fail with errors saying the runtime is unavailable or that the connection was refused. Most existing data flows continue to process data, and other features that leverage Snowpark Container Services aren't affected by this issue. ETA: Our current estimate is that service will be restored within 4 hours. Impact start time: 17:34 UTC October 30, 2026

4. monitoring Oct 30, 2026, 11:20 PM UTC

   Current status: We've implemented the fix for this issue across the affected regions, and we'll continue to monitor the environment until we're confident all services are functioning properly. Customer experience: Customers hosted in the specified regions may have been unable to access or manage their Openflow runtimes deployed in Snowpark Container Services. Runtimes may have shown as active, but opening the Openflow canvas may have failed with errors saying the runtime was unavailable or that the connection was refused. Impact start time: 17:34 UTC October 30, 2026 Impact end time: 22:55 UTC October 30, 2026 Preliminary root cause: A subset of infrastructure responsible for secure communication with Openflow runtimes experienced a certificate issue, which prevented connections to the affected Openflow runtimes

5. resolved Oct 31, 2026, 12:04 AM UTC

   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 regions may have been unable to access or manage their Openflow runtimes deployed in Snowpark Container Services. Runtimes may have shown as active, but opening the Openflow canvas may have failed with errors saying the runtime was unavailable or that the connection was refused. Impact start time: 17:34 UTC October 30, 2026 Impact end time: 22:55 UTC October 30, 2026 Preliminary root cause: A subset of infrastructure responsible for secure communication with Openflow runtimes experienced a certificate issue, which prevented connections to the affected Openflow runtimes A root cause analysis (RCA) will be conducted and a summary will be made available within 5 business days.