Your analysis seems to be right.
Security aspects of SAP Fiori (Authentication, SSO, etc.)
Case 3 seems to be the only option without SSO2.0 and SAML, if you want to use AD.
Your analysis seems to be right.
Security aspects of SAP Fiori (Authentication, SSO, etc.)
Case 3 seems to be the only option without SSO2.0 and SAML, if you want to use AD.