APPC API TRACE (text file)

To perform an APPC API trace to a text file, use the following process:

1. Allocate a sequential dataset with VB 27994 27998, CYL(1,1), for example userid.APITRACE.
2. Ensure APPC has ALTER access to userid.APITRACE.
3. From ISPF option 6 or TSO READY mode, issue the command:

   EX 'SYS1.SBLSCLI0(ATBTRACE)' 'START DSN(userid.APITRACE) 
       LU(base_lu) TP(FEKFRSRV)'

4. Reproduce the failure
5. From ISPF option 6 or TSO READY mode, issue the command:

   EX 'SYS1.SBLSCLI0(ATBTRACE)' 'STOP DSN(userid.APITRACE)'

The trace is case-sensitive.