Installing the exit
The load module implementing the job-submit exit must be link-edited into an APF-authorized library in the LNKLST concatenation or to a library defined by the STEPLIB DD statement in the HCL Workload Automation for Z JCL procedure. The load module should be link-edited with RMODE(24) and AMODE(31) attributes.
AMODE(24) is also supported but is not recommended.