Subsystem component name
When you add a subsystem component to a system definition file, you are selecting a system from a list of systems that you have already defined. By default, the name of the subsystem component is the name of the referenced system.
After a subsystem component is added to a system, you can rename it. The name can be any length and can contain spaces. A subsystem component name must be unique because the Integration Flow Designer does not accept duplicate component names within a system file.