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Identify Metadata to be Mapped
It is absolutely critical to identify the metadata that is used during import which requires mapping, because it cannot be represented directly in the target system. This mapping is an an iterative process that may take several cycles to perfect. As a first test, you could try to import the product data as received. If it fails to import, that would be an indication that you need to start preparing your target system with the mapping rules.
The Method Server log4j properties could be updated with the entry wt.ixb.step=TRACE that allows you to preserve the Windchill data model that gets generated during the import in the form of P21 or P28 format. The files could be located in the directory <Windchill>/temp/IXBExpImp/stepdex. The P21/P28 file specific to the Windchill model then could be inspected manually or using JOTNE’s EDM Supervisor to specifically establish the data that requires mapping. Once the data is identified, you need to identify the XPATH in IXB DTD of the tag for that data using the EXPRESS schema definition file located at <Windchill>}/loadXMLFiles/windchill_express_schema.exp for the Windchill data model. This definition file includes the definitions in EXPRESS form along with the IXB DTD definitions provided in the comment section. The XPATH of tags in IXB DTD form is the one that is used to define the mapping rules. The reason for this is to make the mapping feature applicable to all the applications that leverage the Windchill I/X framework.