For each command processed in a single invocation of SMP/E, SMP/E keeps a record of the highest return code for that command. As SMP/E processes each command, it checks the saved return codes from all the preceding commands to determine whether it should process the current command.

When the RESETRC command is processed, SMP/E resets the return codes for the preceding commands to 0. This allows the next command after the RESETRC command to be processed, regardless of whether preceding commands succeeded.