YA21718 | Restored | Affected users may have been unable to post messages. |Thursday, April 23, 2015, at 12:04 AM UTC

Final Status: Engineers implemented a fix which addressed an error created during recent updates to the Yammer service.

User Experience: Affected users were unable to post messages. Users refreshing groups may have been unable to see messages posted in the feed.

Customer Impact: Customer impact appeared to be limited at this time.

Incident Start Time: Wednesday, April 22, 2015, at 11:05 PM UTC

Incident End Time: Wednesday, April 22, 2015, at 11:44 PM UTC

Preliminary Root Cause: As part of our efforts to improve service resiliency, an update was deployed to the Yammer message posting capacities; however, the update temporarily prevented additional posting from occurring.

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 validating service updates as a dependency was not identified during the testing phase of the development process.

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

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