In this example, if MyExportWidth does not exist, ReplaceExportDefinition creates a new export width definition named MyExportWidth with an associated export width rule set of '1422323221332232322321123111122322323221'XB. If MyExportWidth already exists, then ReplaceExportDefinition replaces the current export width rule set of MyExportWidth with the new export width rule set of '1422323221332232322321123111122322323221'XB.
CALL SYSLIB.ReplaceExportDefinition
('MyExportWidth','1422323221332232322321123111122322323221'xb,msg);