Logon SAP System
An important tp parameter is the name of the SAP System that it needs to log on to. For obvious reasons, this parameter cannot be set in the transport profile. Instead, you set it implicitly by making entries in the command line when calling tp. The name of the SAP System is included as one of the arguments in the command line, or it can be determined from the first three characters of the change request specified (for export calls).
Other Parameters
testsystems
Value range: Text
You can define a list of up to 50 SAP Systems with this parameter. The names must be separated by commas. If the change request export is successful, tp determines which test systems have been specified for the target system in the change request. It then places the request in the buffers for these test systems.