Amplitude experienced a minor incident on April 29, 2026 affecting Evaluation API and Data Processing and 1 more component, lasting 6h 17m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Apr 29, 2026, 08:15 AM UTC
Our data processing systems are delayed. This incident started at 2026-04-29 12:20 AM PT. Current status: a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data. b) Impacted customers will see delayed metrics for the last 1 hour. c) Experiment evaluation API is experiencing higher latencies. d) Cohort syncs to all 3rd party destinations is experiencing higher latencies. We've identified the issue and are working closely with our cloud provider to mitigate it. We will provide an update within the next hour, or sooner if new information becomes available.
- identified Apr 29, 2026, 08:20 AM UTC
Our data processing systems are delayed. This incident started at 2026-04-29 12:20 AM PT. Current status: a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data. b) Impacted customers will see delayed metrics for the last 1 hour. c) Experiment evaluation API is experiencing higher latencies. d) Cohort syncs to all 3rd party destinations is experiencing higher latencies. We've identified the issue and are working closely with our cloud provider to mitigate it. We will provide an update within the next hour, or sooner if new information becomes available.
- identified Apr 29, 2026, 08:30 AM UTC
AWS has identified the issue and is actively working on a resolution. We will provide an update within the next hour, or sooner if new information becomes available.
- monitoring Apr 29, 2026, 08:39 AM UTC
AWS and Amplitude has mitigated the issue and are seeing recovery on impacted services. We will continue to monitor the status and provide an update within the next hour, or sooner if new information becomes available.
- monitoring Apr 29, 2026, 08:59 AM UTC
We are continuing to monitor for any further issues.
- monitoring Apr 29, 2026, 09:10 AM UTC
We are continuing to monitor for any further issues.
- monitoring Apr 29, 2026, 09:54 AM UTC
The issue has been resolved.
- resolved Apr 29, 2026, 02:33 PM UTC
This incident has been resolved.