Make sure all Lawson users (for all Lawson environments and releases) exit the Initial Signon Program (LAWENV) and the Signon Environment Maintenance program (LAWENVM).
If you installed Lawson Core Technology on an IASP, at the OS/400 command prompt, type
SETASPGRP IASPName
To set your Lawson environment variables and path, execute a CALL LAWENV command. At the OS/400 command prompt, type