Current Status: Engineers have identified that a recent update may have exposed a latent configuration issue and are reviewing data in order to develop a solution to remediate the problem.
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.
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.
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 Time: Tuesday, November 17, 2015, at 10:30 PM UTC