Defining Import Targets 
After you have configured transport routes for the system clusters, you must define how the individual transport requests are to be transported along these transport routes. To do this you must define the import targets for the transport requests.
Prerequisites
You have defined the transport routes for the individual systems that belong to the cluster.
Procedure
Start Transport Management System (transaction STMS) in the central CTS server.
Choose Transport Routes.
Switch to change mode using Display <-> Change.
Double-click to select the target cluster for which you want to define import targets.
Choose the Import Targets tab.
In the Request Source column enter the system from which the transport requests are to be exported (source system for transport requests).
In the Target System column enter the system into which the transport requests are to be imported (target system for transport requests).
Ensure that the transport route for the import target runs along a cluster transport route that has already been defined. The system does not check your entries.
Choose Continue.
Repeat these steps for all systems that belong to target clusters in your system landscape.
Result
You have defined the import targets for the systems that are contained in clusters. If you have performed all configuration steps for central CTS you can use it with Change Request Management or Quality Gate Management.