Current Status: Preliminary testing of the solution on a portion of the affected environment has shown that the fix successfully remediates the issue. Engineers will now deploy the solution throughout the remaining affected environment.
User Impact: The affected users are unable to see the Yammer icon within the app launcher or after clicking “View all my apps” within portal.office.com. As a workaround, affected users can access their yammer site directly by using the following format: yammer.com/(tenant name)
Customer Impact: Analysis of incident scope indicates that many customers appear to be impacted by this event. For those customers affected, this issue potentially affects any user attempting to view the Yammer icon in the app launcher or my apps section of portal.office.com. Some customers have reported that their organization is affected by this issue.
Incident Start Time: Tuesday, November 17, 2015, at 12:45 AM UTC
Preliminary Root Cause: A general service update may have exposed a latent configuration issue; however, the underlying root cause is under investigation.
Next Update by: Wednesday, November 18, 2015, at 1:30 AM UTC