Final Status: Engineers identified that a recent configuration update was causing the issue. Engineers reverted the configuration update and performed tests to validate mitigation.
User Experience: Affected users were receiving an error when creating a new message post. The messages were posting successfully, however, users may have created multiple posts, as it was believed that the initial post was unsuccessful.
Customer Impact: Customer impact was limited throughout the service event.
Incident Start Time: Friday, June 5, 2015, at 6:40 PM UTC
Incident End Time: Friday, June 5, 2015, at 7:58 PM UTC
Preliminary Root Cause: A configuration update had caused impact to the message post functionality. The underlying cause is 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: Review the infrastructure update process to prevent reoccurrences of this scenario.
Please consider this service notification the final update on the event.