Methods for changing mappings

You can change the default mappings created during export by editing the mappings.xml file or by setting the UserMappings properties in the API. If these two conflict, the latter overrides the former.

You can edit the mappings table in the following ways:
Customizing the mappings file in the import package

By default, the mappings.xml file produced during export is included in the package. You can edit this file to apply custom mappings.

Setting the UserMappings property
This property of the ImportInstruction class in the Import and Export service API lets you specify custom mappings as well.

If mappings.xml contains a mapping that conflicts with a mapping specified in UserMappings, the UserMappings mapping is applied.