Final Status: Engineers identified that a recently enabled search feature was causing the problem. Engineers disabled the feature, which successfully mitigated impact.
User Impact: The affected users may have received an error when attempting to search their inbox, users and groups.
Scope of Impact: Many customers likely had users experiencing impact related to this event. No customer reports of the issue were identified during this event.
Incident Start Time: Thursday, April 7, 2016, at 6:42 PM UTC
Incident End Time: Thursday, April 7, 2016, at 7:19 PM UTC
Preliminary Root Cause: A recently enabled feature intended to enhance search functionality unexpectedly resulted in service impact.
– Review procedures for validating feature updates as impact to search functionality was not identified during the testing phase of the development process.
Please consider this service notification the final update on the event.