Anaplan experienced a major incident on November 11, 2025 affecting us1: Data Center - US East and us2: Data Center - US West and 1 more component, lasting 31m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Nov 11, 2025, 09:57 AM UTC
We are currently investigating an issue impacting customers’ ability to access the Anaplan Platform. We are working to resolve this issue as quickly as possible and will provide updates every 30 minutes or upon resolution.
- monitoring Nov 11, 2025, 10:08 AM UTC
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.
- resolved Nov 11, 2025, 10:28 AM UTC
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.
- postmortem Nov 20, 2025, 06:21 PM UTC
On November 11, 2025, starting at 09:27 UTC, the Anaplan platform experienced a brief service degradation. This disruption, lasting 20 minutes, resulted in a period where users faced intermittent authentication issues when accessing the platform. Users who were already logged in could continue working. However, some users may have experienced occasional authentication errors when using some features. The below details the affected region: * us1: Data Center – US East * us2: Data Center - US West * eu2: Data Center - Germany * eu1: Data Center - Netherlands * us5: Cloud - US East * ap1: Cloud - Japan * us7: Cloud - US * eu4: Cloud – Europe **Root Cause** The incident was caused by a temporary network connectivity issue with a third-party service provider. This issue specifically affected the network routing for our identity service, which is critical for user authentication. Our investigation confirmed that an external network failure, coincided with maintenance activities and a separate network incident that the provider publicly reported. This caused a percentage of authentication sessions from Anaplan to the vendor's network to time out. The provider quickly identified the source of the disruption within their network and implemented an immediate fix. **Our Response and Recovery** Upon detecting the initial login failures, our global engineering teams launched a coordinated investigation. Our analysis of network traffic logs swiftly isolated the fault to the external provider. We immediately engaged the provider with a high-priority case and worked closely with them throughout the recovery process. Service was fully restored at 09:47 UTC. Following the restoration, our teams continued to monitor the service to ensure full restoration and confirm platform stability before officially closing the incident. **Corrective and Preventative Actions** While this incident stemmed from a third-party failure, we hold ourselves accountable for the performance of our platform and the reliability of the providers we partner with. We are taking both immediate and long-term actions to improve the resilience of our platform. * We have enhanced our monitoring to provide earlier, more specific detection of this class of network issue. This will enable our teams to respond even faster and, in some cases, proactively mitigate impact. * We have escalated this incident to the leadership team at our provider. We are conducting a joint review to ensure they implement definitive measures to prevent a recurrence of this issue. * We are partnering with our provider to conduct a thorough architectural review of our point-to-point network connections. The goal of this is to identify and implement improvements that'll increase our resiliency against these types of network disruptions. We deeply apologize for the impact this outage has had on your business and appreciate your patience and understanding. We are fully committed to building an even more resilient platform for the future. Should you have any further questions or concerns, please visit the Anaplan Support website. Thank you for being a valued Anaplan customer.