Final Status: Engineers restored the network connection between Yammer and the associated Azure storage.
User Experience: Affected users may have been receiving intermittent errors when attempting to upload or preview files on Yammer.com. As a workaround, users may have been able to make additional attempts to upload or preview files as subsequent requests may have been successful due to the intermittent nature of the issue.
Customer Impact: Customer impact appeared to have been limited during this event.
Incident Start Time: Wednesday, June 3, 2015, at 1:20 PM UTC
Incident End Time: Wednesday, June 3, 2015, at 10:00 PM UTC
Preliminary Root Cause: A network connectivity issue occurred between Yammer and Azure storage that stores the uploaded files.
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: Identify the underlying root cause and develop a solution to prevent reoccurrences.
Please consider this service notification the final update on the event.