Final Status: An automated feature of the Yammer service took the necessary action to remediate impact. Engineers verified that the service is healthy.
User Impact: Affected users were unable to sign in to Yammer.
Customer Impact: Analysis of incident scope indicated that a very limited number of customers and users appeared to be impacted. No customer reports of the issue were identified during this event.
Incident Start Time: Monday, January 11, 2016, at 11:34 PM UTC
Incident End Time: Monday, January 11, 2016, at 11:48 PM UTC
Preliminary Root Cause: The underlying root cause is under investigation.
Next Steps: The following is a list of known action item(s) associated with this incident. As part of the Office 365 problem management process, additional engineering actions may be identified to improve the overall service.
– Action: Identify the underlying root cause and develop a solution to prevent reoccurrences.
Please consider this service notification the final update on the event.