Final Status: Engineers identified that a portion of the Yammer infrastructure which delivers real-time notifications was experience high resource utilization. Engineers successfully mitigated impact by re-distributing service load.
User Experience: Users may have been unable to view recent notifications from Yammer feeds. As a workaround, affected users could manually refresh their internet browser to view the notifications and their associated content.
Customer Impact: No customer reports of the issue have been identified at this time.
Incident Start Time: Friday, September 25, 2015, at 12:20 PM UTC Incident End Time: Friday, September 25, 2015, at 3:09 PM UTC
Preliminary Root Cause: A portion of the Yammer infrastructure that delivers real-time notifications was experience high resource utilization. The underlying cause of the issue remains 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: Further investigate the underlying cause of the issue and implement a solution to prevent the problem from reoccurring.
Please consider this service notification the final update on the event.