Specifies the system name of the CICS® server region to where the program link request was routed. This is the SYSID parameter value specified on the EXEC CICS LINK command. This field can be blank if the LINK request is a normal local link request. This value is derived from the TYPE = 1 record, PARM02, in the CICS Service Flow Runtime Properties file. The specific TYPE = 1 record, that is, the key value, can be determined by the value found in the Program field in the static portion of this dump.