For both TSO (REXXTSO(YES)) and non-TSO (REXXTSO(NO)) environment REXX checks, the system allocates REXXOUT data sets for use using the following:

1. REXXHLQ(hlq ) from the check definition
2. EXEC(execname) from the check definition
3. REXXOUT
4. ENTRYCODE(entrycode) from the REXX check definition, if defined

For example, let's say a REXX check is defined with the following parameters:

EXEC(HZSSXCHK)
REXXHLQ(IBMUSER) 
ENTRYCODE(1)    

The REXXOUT data set name that the system uses is IBMUSER.HZSSXCHK.REXXOUT.E1. If you did not define an entry code for this REXX check, the REXXOUT data set name would be IBMUSER.HZSSXCHK.REXXOUT.