Box experienced a major incident on July 15, 2026 affecting Box Relay, lasting 2h 29m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jul 15, 2026, 04:14 AM UTC
We are investigating an ongoing issue affecting Box Relay. We will provide additional information as it becomes available.
- identified Jul 15, 2026, 04:50 AM UTC
Our team has identified the underlying cause of this issue and is working to take remediating steps. We will provide additional updates as they become available.
- identified Jul 15, 2026, 06:00 AM UTC
We are continuing to work on a fix for this issue.
- monitoring Jul 15, 2026, 06:32 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Jul 15, 2026, 06:43 AM UTC
After further monitoring, this incident is now considered resolved. Box Relay has been restored to full functionality. If you continue to experience any issues, please contact Box Support at https://support.box.com.
- postmortem Jul 19, 2026, 11:53 PM UTC
We recently addressed issues affecting Relay. We would like to take the opportunity to further explain these issues and the steps we have taken to address them. Between July 14, 2026 at 2:21 AM PDT and July 14, 2026 at 11:55 PM PDT, some users may have experienced difficulties while working in Box. A recent code change in Relay introduced stricter error handling for collaboration failures, which caused the task outcome to not work in some cases. The issue was resolved by rolling back the Relay service to the previous version, after which point task outcome errors returned to baseline. We are conducting a full engineering postmortem and our overview is subject to change with further analysis and findings. In the event our continuing investigation yields further substantive findings, we may publish additional analysis after the conclusion of the full engineering postmortem. We are continuously working to improve Box and want to make sure we are delivering the best product and user experience we can. We hope we have provided some clarity here and we would be happy to answer any questions you may still have regarding this matter. Sincerely, The Box Team