APPC TP SYSTSPRT

For actual debugging (only on request of IBM® support), you can trap the SYSTSPRT output of the transaction. The default output location in sample JCL FEK.SFEKSAMP(FEKAPPCC) is SYSOUT=*.

When writing to a dataset, be sure you use a user-specific naming convention (for example, use &SYSUID. in the DSN), because there will be one APPC transaction per Developer for z/OS® user.

When writing the output to SYSOUT, be aware that JES treats APPC's SYSOUT output as special:

While the APPC transaction is still active, the output can be seen using the DA command in SDSF. The job name will be FEKFRSRV by default. The client's userid will be the job owner.
When the APPC transaction ends, the output can be seen using the APPC ON and H ALL commands in SDSF, if the output was written to a HOLD output class. The job name and job owner remain the same.