Azure Lighthouse is a new feature that provides improved access management for users and applications across different Azure tenants, allowing managed service providers (MSPs) to manage their customers' environments more easily. Prior to this feature, MSPs had to create separate app registrations for each tenant ID, which added considerable overhead. Now, with the integration of Datadog and Azure Lighthouse, MSPs can use a single app registration to manage the Datadog integration across multiple tenants, while maintaining control over data access. This setup enables deep visibility into customers' Azure environments, with automated enrichment of metrics with metadata from Azure, and allows for tailored dashboards and alerts based on individual customer subscriptions.