Primary Domain Controller Host

I have created an IDP which works on Azure AD authentication , which works successfully when users login on our application , but the roles still comes from the default user source rather than Azure AD. so I think I need to create a new user source by selecting Active Directory, we don’t have on-premise AD service , everything from Azure cloud , but primary domain controller host is required when I filled the active directory properties , may I know how to I fill the information ?

Thank you


Let me get this straight: you want to use an external IdP for logging the user in, but you want to source the roles for these users from an Internal User Source Profile?