Final Status: We detected an issue with user sign in after a configuration update was applied and rolled back the change to remediate impact.
User Impact: Users may have been unable to sign in to Yammer.
Scope of Impact: While we weren’t aware of any customer reports of impact, our monitoring indicated that a limited number of users would have been affected.
Start Time: Thursday, August 11, 2016, at 10:43 PM UTC
End Time: Thursday, August 11, 2016, at 10:55 PM UTC
Preliminary Root Cause: A configuration update designed to improve service stability inadvertently impacted user sign in.
– We’re reviewing further why this configuration changed caused an issue.
This is the final update for the event.