Determine the name of the user server that had a problem. That name consists of the TSOE_JOBCHAR parameter from the configuration file, followed by the TSO user ID. Depending on the activity of the client, there may be more than one STC job log with the same name, but different JES job IDs.
A standard user server job log consists of the following DD names (example from JES2/SDSF):
NP DDNAME StepName ProcStep CrDate-CrTime O-Grp-N DSID Owner
ZCOTSPRT IVPISPF mm/dd/jjjj hh:mm:ss 7 106 TAUUSR
T0000001 IVPISPF mm/dd/jjjj hh:mm:ss 2 113 userid
SYSTSPRT IVPISPF mm/dd/jjjj hh:mm:ss 7 105 TAUUSR
SYSPRINT IVPISPF mm/dd/jjjj hh:mm:ss 5 111 userid
SYSPRINT IVPISPF mm/dd/jjjj hh:mm:ss 8 116 userid
SRVTASK IVPISPF mm/dd/jjjj hh:mm:ss 4 115 userid
MAINTASK IVPISPF mm/dd/jjjj hh:mm:ss 3 112 userid
LISTENER IVPISPF mm/dd/jjjj hh:mm:ss 3 105 userid
JESYSMSG mm/dd/jjjj hh:mm:ss 7 4 TAUUSR
JESMSGLG mm/dd/jjjj hh:mm:ss 7 2 TAUUSR
JESJCL JES2 mm/dd/jjjj hh:mm:ss 7 3 TAUUSR
ISPLOG IVPISPF mm/dd/jjjj hh:mm:ss 7 103 TAUUSR
CMDTASK IVPISPF mm/dd/jjjj hh:mm:ss 6 114 userid
The JESYSMSG, JESMSGLG and JESJCL DD names are the standard names used by JES2.