[Minor] Issues with Uploads

Investigating

We are investigating an ongoing issue affecting uploads. We will provide more information as soon as it is available.

Resolved

This incident is now considered resolved. Box uploads have been restored to full functionality. Please contact Box Support at https://support.box.com/ if you continue to experience any issues.

Resolved

_Notice and disclaimer: Box is providing this preliminary information subject to further review and analysis. To the best of our knowledge, this is the current state and we may update as more information is confirmed._ On June 24th, 2026 between 4:47am and 5:28am PT, some users may have experienced issues with chunked uploads in Box. During this time users may have noticed elevated errors or performance degradation. The issue was caused by a failover event at one of our third-party cloud infrastructure providers. We are implementing enhancements to our resiliency measures to prevent similar issues from occurring in the future. 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