The Datadog Service Map is a visual tool that helps developers understand the topology of their application, identify bottlenecks, and troubleshoot issues. It decomposes the application into its component services, displays dependencies in real-time, and provides insights into data flows through the architecture. The map automatically clusters related services together, allowing users to focus on specific services and dependencies. By integrating with Datadog APM, the Service Map provides a single pane of glass for investigating performance issues, including tracing calls across distributed services, hosts, and infrastructure metrics. This enables teams to quickly isolate and remediate problems without relying on outdated whiteboard diagrams or complex documentation.