When an OUTPUT JCL statement is used with the sysout DD statement to specify processing, JES handles parameters as follows:

• If a parameter appears on the DD statement, JES uses the parameter.
• If a parameter appears only on the OUTPUT JCL statement, JES uses the parameter.
• If the same parameter appears on both statements, JES uses the DD parameter.

JES uses the whole overriding parameter, ignoring the whole overridden parameter. If a subparameter is left off the overriding parameter, the system does not pick up that subparameter from the overridden parameter. For example:

   //EXAMP2  OUTPUT   FLASH=(ABCD,3)
   //FVZ2    DD       SYSOUT=F,OUTPUT=*.EXAMP2,FLASH=(EFGH)