Resolving remote services to a tier can put the metrics for the services into an element of the Splunk AppDynamics application model that may provide a more useful view of the activities of the services in flow maps.

The tier may already exist in the business application model or you can create a new one. If it exists, after you resolve the backend to a tier it no longer appears as a backend icon in the flow maps.

Splunk AppDynamics automatically resolves some backends to tiers. In general, these are custom backends or HTTP, RMI, Thrift or web services, which are usually logically linked to a tier. If you want to see the backend on its own, you can unresolve it to display it on the flow map.