Hello Lydia,
if you simply need to create a report of the users defined on Ideal, you can run a Ideal batch job, allocating the PRTLIST ddname to a file (it's usually allocated as SYSOUT):
//IDEAL EXEC IDLBATCH,PARM='NOPRINT'
.
.
//PRTLIST DD DSN=USERS.LIST,DISP=(NEW,CATLG),UNIT=3390,
// SPACE=(TRK,(1,1))
//SYSIN DD *
SIGNON PERSON $IDEAL
DIS IND USER
OFF
/*
The dataset in PRTLIST then contains the list of the Ideal users.
Umberto