Diagnosis
An error occurred when trying to determine the source system (Char 2,0soursystem). No system could be determined.
No entry for the following system information could be found in thesource system table RSSOURSYSTEM (master data table for 0SOURSYSTEM):
LCR system ID: ,,,,&1
LCR system GUID:,,,,&2
Logical system: ,,,,&3
Installation number: ,,&4

Procedure
Make sure that a corresponding entry exists in table RSSOURSYSTEM.Refer to the documentation of InfoObject 0SOURSYSTEM.
If you are working with the system ID from the System LandascapeDirectory (SCR), refer to the maintenance view V_RSSOURSYSTEM1(maintenance using SM30). You can make the assignment of LCR ID to BWsystem ID (Char 2) here.