Location in the JCL

Place all //*PROCESS statements for a job immediately after the JOB statement and before the first EXEC statement. If the job includes a //*NET statement, the //*NET statement must appear between the JOB statement and the first //*PROCESS statement.
The //*PROCESS statements can be separated only by their parameter statements.
JES3 processes the //*PROCESS statements in the order in which they appear in the input stream.
The first //*PROCESS statement must request an interpreter DSP if you want input service error messages, which indicate that a job is to be scheduled for interpreter processing before being purged.