On March 22nd 2021, Anaplan engineers were notified that the platform was inaccessible to a subset of users. Upon investigation, it was discovered the issue was caused by our Gateway service being unable to establish new connections and users attempting to log in were not able to do so. The service was restarted and once it came back online it was able to process new requests as expected and platform availability was restored. Further investigation identified a misconfiguration on the Gateway service as the root cause and was not allowing new connections to the service. This impacted users who were not already logged into the platform and were attempting to log in via single sign-on. We have identified a number of corrective actions which include a fix for the configuration issue as well as some additional alerting. We understand the impact that this type of issue can have on your Anaplan experience and are committed to continuously improving our processes and alerting. Thank you for your patience while resolving this issue and thank you for being a valued Anaplan customer.