updated overview of Change Tracking about Lighthouse

Author: MGoedtel

articles/automation/change-tracking/overview.md

@@ -36,6 +36,8 @@ Machines connected to the Log Analytics workspace use the [Log Analytics agent](
 > [!NOTE]
 > Change Tracking and Inventory requires linking a Log Analytics workspace to your Automation account. For a definitive list of supported regions, see [Azure Workspace mappings](../how-to/region-mappings.md). The region mappings don't affect the ability to manage VMs in a separate region from your Automation account.
 
+As a service provider, you may have onboarded multiple customer tenants to [Azure Lighthouse](../../lighthouse/overview.md). Azure Lighthouse allows you to perform operations at scale across several Azure Active Directory (Azure AD) tenants at once, making management tasks like Change Tracking and Inventory more efficient across those tenants you're responsible for. Change Tracking and Inventory can manage machines in multiple subscriptions in the same tenant, or across tenants using [Azure delegated resource management](../../lighthouse/concepts/azure-delegated-resource-management.md).
+
 ## Current limitations
 
 Change Tracking and Inventory doesn't support or has the following limitations: