Platform Alerts

Incident Report for Anaplan

Postmortem

On May 22, 2026, between 18:24 and 20:06 UTC, customers in the following regions were unable to load or view apps and pages: 

  • us1: Data Center - US East 
  • us2: Data Center - US West 
  • eu1: Data Center - Netherlands 
  • eu2: Data Center - Germany 
  • us5: Cloud - US East 
  • ap1: Cloud - Japan 
  • us7: Cloud - US 
  • eu4: Cloud - Europe 

Root cause 

During a routine update, a transient connectivity issue occurred as the update was being distributed across back-end components. This caused one component to lose sync and isolate itself to protect data integrity. Under normal circumstances, requests would automatically redirect to a healthy component. A gap in our health monitoring configuration meant this isolated state wasn't recognized as requiring a redirect. This meant requests continued routing to the isolated component rather than being redirected to a healthy component. This temporarily prevented apps and pages from loading.  

Recovery 

Our engineering team identified the issue and took immediate action to restore access. We restarted the affected component and redirected all traffic to healthy components. This quickly began restoring app and page access. We then completed a full data sync to confirm our environment was fully consistent and healthy. By 20:06 UTC, the issue was fully resolved for all customers. 

Corrective and preventative actions 

We're implementing the following improvements to prevent similar disruptions: 

  1. We're auditing and stress testing our traffic redirect mechanisms to confirm they trigger automatically during component isolation events. This ensures customers can access their apps and pages even when connectivity issues occur between components. 

  2. We're enhancing our alerting to reduce the time between detecting a connection failure and our engineering team responding. This means we can identify and address similar issues earlier, before they affect customers. 

  3. We're updating our deployment procedures to include additional connectivity checks during platform updates. This ensures our engineering team catches potential connection issues during deployment before they affect customers. 

Closing 

We apologize for the impact this issue has had on your operations. We're committed to the improvements outlined above to prevent similar disruptions. If you have questions or concerns, please contact our Support team.

Posted Jun 01, 2026 - 13:05 UTC

Resolved

We have confirmed that the issue is now resolved.

We deeply apologize for any impact this issue may have caused. We appreciate your patience and partnership as we worked through this issue.

We will follow up within 7 business days with a detailed root cause analysis (RCA) that will be shared on our Status Page. If you have any question or concerns, please do not hesitate to contact us at Anaplan Support.
Posted May 22, 2026 - 20:20 UTC

Monitoring

Service has now been restored; you should now be able to resume normal activities.

We will continue to monitor the platform to ensure no additional issues arise. If you have any questions, concerns, or continue to experience issues, please do not hesitate to contact Anaplan Support. We will provide a final update to you when we consider this situation fully resolved.
Posted May 22, 2026 - 20:10 UTC

Update

We have identified the likely cause of the issue, and we are focused right now on restoring service as quickly as possible. Currently, we do not yet have a time to resolution. We will provide further updates in 30 minutes or upon resolution.
Posted May 22, 2026 - 19:48 UTC

Identified

We have identified the likely cause of the issue, and we are focused right now on restoring service as quickly as possible. Currently, we do not yet have a time to resolution. We will provide further updates in 30 minutes or upon resolution.
Posted May 22, 2026 - 19:24 UTC

Investigating

Thank you for your patience as we continue to investigate this issue. Currently, we do not yet have a time to resolution. We will continue to provide updates every 30 minutes as we work to resolve this issue as quickly as possible.
Posted May 22, 2026 - 19:01 UTC
This incident affected: us1: Data Center - US East, us2: Data Center - US West, eu1: Data Center - Netherlands, eu2: Data Center - Germany, eu4: Cloud - Europe, us5: Cloud - US East, ap1: Cloud - Japan, and us7: Cloud - US.