This diagram shows the process of how Microsoft Entra ID (MSEI) Single-Sign On can be used to connect to the Oracle database used as a source for Microsoft Power BI. First, a Power BI user authenticates themselves with MSEI. Second, Power BI obtains an access token from MSEI. Third, the MSEI access token is sent from the Power BI to the Oracle database. Fourth, the Oracle database caches the MSEI public key to validate the MSEI Power BI token.