After you populate the master XML file, start ssaservice.
In Linux operating systems, you can start ssaservice with the script "ssaserviced." The start command is "ssaserviced start." You can use "ssaserviced" to stop the service, but Informatica recommends that you use ssamon to stop ssaservice.
In Windows operating systems, you can start ssaservice with the script "start ssaservice start." Alternatively you can start the service in terminal, with the command "ssaservice start."