When investigating Teams issues, another valuable tool is the Microsoft 365 Service Health dashboard, with which you can view the status of the services in your tenant. To view the dashboard, follow these steps:

1. Navigate to the Microsoft 365 Admin Center (https://admin.microsoft.com), expand Health, and select Service health:

2. For services that display advisories or incidents, you can select the Advisory or Incident link next to the service or expand the Incidents or Advisories menu option to display relevant events.
3. If an event has a Show details link, you can click on it to review more verbose details:

Remember, since Teams connects to many Microsoft 365 services, it's important to check the service health of other connected services, such as SharePoint Online and Exchange Online, when investigating issues that manifest themselves in Microsoft Teams. 

In the next section, we'll look at some ways to monitor usage.