Final Status: Engineers have completed the deployment of the code fix, which has remediated impact.
User Experience: Users would not have seen suggested users to follow in Yammer.
Customer Impact: Customer impact appears to have been limited. Yammer functionality outside of suggested users was unaffected.
Incident Start Time: Monday, May 18, 2015, at 2:48 PM UTC
Incident End Time: Wednesday, May 27, 2015, at 10:15 PM UTC
Preliminary Root Cause: A recent infrastructure update intended to improve Yammer stability has caused a portion of capacity that facilitates user suggestions for the Yammer service to not process data as expected.
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 the user suggestion data processing issue was not identified during the testing phase of the development process.
Please consider this service notification the final update on the event.