-   AuthenticationLearn about authentication using Identity Platform. 
-   UsersLearn about user properties, the user lifecycle, sign-in providers, and authentication tokens. 
-   Admin APIsLearn about using the Admin SDK to integrate your own servers with Identity Platform. 
-   Multi-tenancyLearn about using multiple tenants with Identity Platform. 
-   Differences between Identity Platform and Firebase AuthenticationLearn about the differences between Identity Platform and Firebase Authentication. 
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