SMP/E checks the LMOD entries for the load modules specified on the INTOLMOD operand to determine whether they can be processed by the LINK MODULE command. First, SMP/E verifies that none of the load modules are copied (single-CSECT) load modules. SMP/E then checks whether the LMOD entries already contain XZMOD subentries for any of the modules specified on the MODULE operand. These subentries indicate that the load module contains a module supplied by another zone. If SMP/E finds any such XZMOD entries, it verifies that the zone specified as the original supplier of the module is the same as the current FROMZONE value.

Next, SMP/E ensures that none of the modules specified on the MODULE operand will overlay a module by the same name in the set-to zone that is already part of a load module being updated and that is installed in the target libraries. For each LMOD entry found, SMP/E saves its target library information for subsequent use in the link operation.