If you employ the UserPrincipalName parameter, you don't need to make use of the AzureADAuthorizationEndpointUri parameter for MFA or federated customers in environments that Usually require it (UserPrincipalName or AzureADAuthorizationEndpointUri is required; Alright to use both). If no operator exists, warning messages are sent to end users with Owner permissions. https://play-sudoku-blocks-online32974.azzablog.com/36025042/sudoku-blocks-game-app-things-to-know-before-you-buy