In SYS1.PARMLIB, member IKJTSOXX, and has seme value set-up for OUTLIM(n1) and that is subject to change foe every shop, As Robert has said. OUTLIM (n1) specifies the maximum number of records a user can transmit before the transmission is terminated. If n1 is less than or equal to 16777215, the system passes the value to JES as the OUTLIM value. If n1 is greater than 16777215, the system does not pass the value to JES. However, n1 still serves as the limit for the TRANSMIT command.
well, now you know it but keep this in mind:
This is one of those cases where you must -- absolutely must -- work with your site support group