If you modify an exported XML file, you need to make sure that the XML file conforms to the structure of powrmart.dtd. You also need to make sure the metadata in the XML file conforms to Designer and Workflow Manager rules. For example, when you define a shortcut to an object, define the folder in which the referenced object resides as a shared folder. Although PowerCenter validates the XML file before importing repository objects from it, it might not catch all invalid changes. If you import into the repository an object that does not conform to Designer or Workflow Manager rules, you might cause data inconsistencies in the repository.