The best features of Microsoft Entra External ID include its unification of B2C functionality and B2E features.
Microsoft Entra External ID enables quick setup, allowing ID generation in minutes while enhancing monitoring and access controls. Integrated within the Microsoft ecosystem, it offers single sign-on for seamless B2C and B2E integration. Security is bolstered by its firewall capabilities, though costs and support remain challenges. Authentication options are limited, and renewal costs can be unpredictable, impacting affordability for medium-sized businesses and integration with systems like Oracle.