In VConnect RP Deployment, username and password were used to connect in case of both AzureAD and ADFS Identity Management Solution type. In Active Directory Federation Services (ADFS), there were transient connection issue at times when using username and password. So,now modified the deployment to use Service Principal.
During validation, when it prompts for Service Administrator and Tenant User credentials, please use the ApplicationId for Username ad ApplicationSecret for password.
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The ApplicationId and Secret is obtained from the result of RegisterVConnectAdminApp script.