Purview Sensitivity Label Auto-Labeling Scenarios

This is an article I’ve wanted to put together for a while: a comprehensive reference of all the different auto-labeling mechanisms available in Microsoft Purview Sensitivity Labels, organized by platform and location. This includes client-side and service-side auto-labeling, default labels from policies, and specific behaviors in SharePoint, Exchange, Teams, Power BI/Fabric, and hybrid/on-premises scenarios.

Let me know if you see any errors or omissions! This stuff is spread all over the documentation, so it’s possible I missed something.

Primary Auto-Labeling Mechanisms (Organized by Platform/Location)