This is not shown by default, but can be specified in the Choose columns panel. Messages are identified by one of the following three categories: Prevent or fix issues: Informs you of known issues affecting your organization and may require that you take action to avoid disruptions in service. Prevent or fix issues are different than Service health messages because they prompt you to be proactive to avoid issues. Plan for change: Informs you of changes to Microsoft 365 that may require you to act to avoid disruptions in service. For example, we let you know about changes to system requirements or about features that are being removed. We try to provide at least 30 days' notice of any change that requires an admin to act to keep the service running normally. Stay informed: Tells you about new or updated features we are turning on in your organization. announced first in the . May also let you know about planned maintenance in accordance with our Service Level Agreement. Planned maintenance may result in down time, where you or your users can't access Microsoft 365, a specific feature, or a service such as email or OneDrive for Business., To keep track of upcoming changes, including new and changed features, planned maintenance, or other important announcements, go to Message center. To open Message center: In the admin center, go to Health > Message center., To help you track feature availability in your organization, Microsoft will provide a release status for each new and updated feature announcement in Message center. This message is associated with Microsoft 365 Roadmap ID 108078. When this will happen:.