YA22577| Service Restored| Unable to access Yammer and/or degraded performance | Wednesday, May 13, 2015 at 3:00 PM UTC

Final Status: Engineers disabled a recently added Yammer feature and performed tests to validate remediation.

User Experience: The affected users may have been intermittently unable to access Yammer.com. Additionally, Yammer.com site performance may have been degraded.

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

Incident Start Time: Wednesday, May 13, 2015, at 2:35 PM UTC

Incident End Time: Wednesday, May 13, 2015, at 3:00 PM UTC

Preliminary Root Cause: A recently enabled feature intended to enhance Yammer functionality unexpectedly caused Yammer.com to experience various performance issues.

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: Review procedures for adding additional features as service impact was not identified during the testing phase prior to deployment.

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

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