Transaction Priorities and Class Assignments
If you find that heavy usage of the CICS® interface is causing resource shortages in CICS, you may want to consider imposing transaction class limits on the IBM® Connect:Direct® transaction. You can impose class limits by first assigning a transaction class to the transaction, and then placing a limit on the number of transactions in that class. You may also want to assign the IBM Connect:Direct transaction to a lower priority than those of other tasks in your system to increase system throughput.