On November 9, 2023, at 22:41 UTC, we identified an issue that would have prevented customers from loading models on Anaplan Data Center — Netherlands.

Initial investigation identified that a connectivity issue had occurred on a backend network component. This resulted in connectivity flapping to occur between several network interfaces. After further investigation, we found that the flapping had caused the impacted network interfaces to be denylisted. This prevented traffic from being sent to and from these network interfaces.

To address this issue, we drained and restarted the impacted backend components. The issue was resolved at 00:32 UTC.
We're currently working with our network vendor to determine why the impacted network interfaces were denylisted. While we do this, we've paused the affected components from serving traffic. This issue has also flagged the need for additional monitoring, which we have now implemented.

We apologize for any impact this issue might have had on your business operations. We're continuously strengthening our systems and procedures to ensure we avoid future disruption to your business and users.
If you have further questions or concerns, please visit our Anaplan Support website. Thank you for your patience during this situation and thank you for being an Anaplan customer.