Resolved after 1 day 6 hours, affecting Simon Web App and Journeys and 1 more, on October 20, 2025.
All services are up and back to operational. AWS has resolved the last of the Redshift issues that have been impacting us. Our batch processing is continuing as scheduling and the team is monitoring progress.
Affected components
Update timeline
- identified Oct 20, 2025, 01:32 PM UTC
After additional investigation and monitoring from the previous incident, the following services are listed as degraded until the AWS incident is fully resolved.
- identified Oct 20, 2025, 09:07 PM UTC
Some AWS services are beginning to recover from today's incident, but AWS Redshift continues to experience issues, which impacts Simon AI's segmentation and customer filtering features. We expect these issues to continue for several hours.
- identified Oct 21, 2025, 02:36 AM UTC
Simon continues to monitor the AWS recovery progress. At this time, the AWS Redshift cluster recovery is still outstanding with AWS engineers. Services continue to remain impacted.
- monitoring Oct 21, 2025, 05:26 AM UTC
All services are up and back to operational. AWS has resolved the last of the Redshift issues that have been impacting us. Our batch processing is continuing as scheduling and the team is monitoring progress.
- resolved Oct 21, 2025, 07:48 PM UTC
After our continued monitoring, Simon is considering this issue resolved.
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Amazon Web Services