(AzureCXP) improves doc content

Added Kafka client resource details to get access token

Author: KranthiPakala-MSFT

articles/event-hubs/authenticate-application.md

@@ -12,7 +12,7 @@ ms.author: spelluru
 
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 # Authenticate an application with Azure Active Directory to access Event Hubs resources
-Microsoft Azure provides integrated access control management for resources and applications based on Azure Active Directory (Azure AD). A key advantage of using Azure AD with Azure Event Hubs is that you don't need to store your credentials in the code anymore. Instead, you can request an OAuth 2.0 access token from the Microsoft Identity platform. The resource name to request a token is `https://eventhubs.azure.net/`. Azure AD authenticates the security principal (a user, group, or service principal) running the application. If the authentication succeeds, Azure AD returns an access token to the application, and the application can then use the access token to authorize request to Azure Event Hubs resources.
+Microsoft Azure provides integrated access control management for resources and applications based on Azure Active Directory (Azure AD). A key advantage of using Azure AD with Azure Event Hubs is that you don't need to store your credentials in the code anymore. Instead, you can request an OAuth 2.0 access token from the Microsoft Identity platform. The resource name to request a token is `https://eventhubs.azure.net/` (For Kafka clients, the resource to request a token is `https://<namespace>.servicebus.windows.net`). Azure AD authenticates the security principal (a user, group, or service principal) running the application. If the authentication succeeds, Azure AD returns an access token to the application, and the application can then use the access token to authorize request to Azure Event Hubs resources.
 
 When a role is assigned to an Azure AD security principal, Azure grants access to those resources for that security principal. Access can be scoped to the level of subscription, the resource group, the Event Hubs namespace, or any resource under it. An  Azure AD security can assign roles to a user, a group, an application service principal, or a [managed identity for Azure resources](../active-directory/managed-identities-azure-resources/overview.md).