YA21367| Service Restored | Affected users may have experienced delays when posting messages to Yammer.com| 8:00 PM UTC

Final Status: Engineers identified that a portion of the Yammer infrastructure that facilitates message posting was degraded. Messages posted to Yammer.com were queuing within the Yammer environment. Engineers successfully mitigated impact by adding additional capacity to assist with processing service load. All queues associated with message posting have been processed.

User Experience: Affected users may have experienced delays when posting messages to Yammer.com.

Customer Impact: Impact was limited throughout the duration of the incident.

Incident Start Time: Friday, April 17, 2015, at 6:29 PM UTC

Incident End Time: Friday, April 17, 2015, at 7:13 PM UTC

Preliminary Root Cause: A portion of the Yammer infrastructure that facilitates message posting was degraded. The underlying cause of the issue is still 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 future reoccurrences.

Please consider this service notification the final update on the event.

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