For users accessing Dynamics 365 apps, evaluate the Non-conformant usage by users with Team Member license report in the admin center. This report—available to download from the Analytics section for Common Data Service—will help you determine usage patterns that demonstrate the apps, entities, and operations being carried out by these users that can identify which Dynamics 365 license would be most appropriate for them. For example, if you see lot of edits to the Case entity (outside of self-service scenarios), you should consider assigning a Dynamics 365 Customer Service Enterprise license to such users of the app in question. For detailed guidance about licensing for various scenarios, see the Dynamics 365 Licensing Guide.