Creo Expert Moldbase Extension > Options > Parameter Options > CHECK_RELATIONS_WHEN_OPEN_BOM
  
CHECK_RELATIONS_WHEN_OPEN_BOM
(hyphen) : When opening the BOM do not check relations defined in EMX rel-files. No action.
FOR_PARTS_AND_ASMS: When opening the BOM, check and set relations from EMX rel-files for parts and assemblies.
FOR_PARTS_ONLY: When opening the BOM, check and set relations from EMX rel-files for parts only.
FOR_ASMS_ONLY: When opening the BOM, check and set relations from EMX rel-files for assemblies only.
Default: NO.