To test your user exit using the LTL_test_only configuration parameter:

  1. Set the value of the LTL_test_only configuration parameter to Y.

    LTM for MVS then sends all LTL to the LTLOUT DD statement for transactions that it would otherwise pass to Replication Server.

  2. View the contents of the LTLOUT file to verify whether your user exit is altering transaction operations as desired.