Final Status: Engineers have confirmed that the fix has successfully mitigated impact.
User Experience: Affected users may have experienced latency when using Yammer services or features.
Customer Impact: A few customers reported that they experienced this issue.
Incident Start Time: Monday, May 18, 2015, at 11:03 AM UTC
Incident End Time: Monday, May 18, 2015, at 3:45 PM UTC
Preliminary Root Cause: During our ongoing work to add capacity, a subset of the infrastructure became degraded. 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 Closure Summary the final update on the event.