Fullstory Status

This incident has been resolved. Guides, tours, surveys, and smart tips are now delivering normally for end users in the NA data center. We apologize for the disruption and are implementing additional safeguards to prevent recurrence. If you are still experiencing issues, please contact support at support@fullstory.com.

As of 9:36 AM ET on June 11, 2026, this issue is resolved. A feature flag introduced as part of our multi-metric support rollout caused alert evaluations to diverge from actual metric values, resulting in Metric Alerts firing incorrectly even when the underlying metric had not breached its threshold. Start time of this issue: Multi-Metric Beta customers: June 4, 2026 at 10:27 AM ET All other customers using Metrics with division: June 10, 2026 at 4:25 PM ET If you continue to receive alerts you believe are incorrect, please reach out to us at support@fullstory.com. We apologize for the disruption.

This issue is now resolved. If you notice any further delays in analytics indexing or data warehouse syncing reach out to support@fulltory.com.

On April 6th, 2026, we introduced a limit on the number of pages that can be recorded in a single session to ensure optimal performance. An unexpected side effect caused our systems to continue collecting excess session data without properly saving it, creating a processing backlog. To resolve this, we quickly paused the limit and significantly increased our system's processing capacity to clear the backlog. Unfortunately, because of the size of the delay, a portion of session data was permanently deleted before it could be successfully archived. Due to ongoing metric degradation as a result of that incident, we experienced a similar build up in our processing backlog on May 18th 2026. While we were able to capture the events in these sessions, the affected sessions will appear in a blank state. This issue impacted a small subset of sessions in some customer accounts in our NA data center from May 7th, 04:00 UTC to May 19th, 07:00 UTC when the issue was ultimately resolved.

On April 6th, 2026, we introduced a limit on the number of pages that can be recorded in a single session to ensure optimal performance. An unexpected side effect caused our systems to continue collecting excess session data without properly saving it, creating a backlog in our database. To resolve this, we quickly paused the limit and significantly increased our system's processing capacity to clear the backlog. Unfortunately, because of the size of the delay, a portion of session data was permanently deleted before it could be successfully archived. While we were able to capture the events in these sessions, the affected sessions will appear in a blank state. This issue impacted a small subset of sessions in some customer accounts in our NA data center from April 6th, 11:00 UTC to April 14th, 14:00 UTC when the issue was ultimately resolved.

2026/02/24 Data transport to data warehouse significantly delayed for some customers This postmortem details the customer impact, the root cause of what happened, how we addressed the problem, and how we will prevent it from happening in the future. # Customer Impact Some customers using Fullstory Anywhere: Warehouse may have observed a significant decrease in the number of events being transported to their data warehouse between Feb 24, 2026 to Mar 13, 2026. The impact here is limited to object storage destinations such as Amazon S3, Azure Blob Storage, and Google Cloud Storage. # Root Cause The Fullstory platform has two internal pipelines that generate event data and notify downstream systems. There is a streaming pipeline for real time event processing, and a batch pipeline for everything else. Object storage data destinations receive notifications from the latter whenever it processes session and page entities that are deemed inactive i.e. no longer receiving event data. On Feb 24, 2026 the team made a change to the streaming pipeline to track additional metadata about page entities that were being processed. Unfortunately this change had an unintended effect on the batch pipeline which caused notifications to not be fired upon successful processing for a subset of events. Thus event data that should have been transported to object storage to instead remain buffered indefinitely. # Resolution On Mar 11, 2026 the team investigated the issue and pinpointed it to a code change that was deployed on Feb 24, 2026. A fix was deployed on the same day as the issue was found. From there events from newly processed page entities began flowing to affected customer’s data warehouses again. Once the fix was in place the team focused on impact analysis and remediation. A backfill process was kicked off on Mar 12, 2026 to transport event data that did not originally make it to affected customer’s data warehouses. As of Mar 13, 2026 the backfill is complete and any gaps in event data have been filled. No further action is required from those impacted. # Process Changes and Prevention Our team has completed a thorough review of the incident, fixed the relevant bug, and implemented a backfill process for remediation here. We have also identified several areas of improvement with our metrics and monitoring, as well as system changes to prevent this kind of unintended cross-pipeline impact. We deeply regret this incident and invite any Fullstory customer who was materially affected to contact [support@fullstory.com](mailto:support@fullstory.com). We stand by ready to fully address all of your concerns.

This incident in the EU1 region has been resolved. All data processing delays have been cleared, and all systems are now operating normally.

Correction: The issue began at approximately 18:40 ET, not 18:40 UTC as previously stated. We have resolved the issue that was causing delays for our warehouse customers in the EU1 region, and all systems are now fully operational. Our team will continue to ensure all data is processed correctly. We appreciate your patience and apologize for any inconvenience this may have caused.

We experienced a service disruption in our EU1 region that impacted playback functionality from 8:45 AM to 9:37 AM UTC. We apologize for any inconvenience this may have caused.

From 1:04 PM to 1:26 PM EST, Fullstory experienced elevated error rates for session capture and some areas of the app. This also caused slight processing delays that lasted until about 2:00 PM EST. There was minimal to no data loss, and most failed requests were successful on retry.

Fullstory will be conducting scheduled maintenance on Monday, June 22nd, 2026, at 11:00 PM EDT through Tuesday, June 23rd, 2026 at 1:00 AM EDT. Customers may experience partial search and API unavailability as well as potential indexing delays during the period of planned maintenance If you are experiencing any issues past 1:00 AM EDT on Tuesday, June 23rd, 2026, please email us at support@fullstory.com.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.

The scheduled maintenance has been completed.