Integration with Other Applications > Windchill Workgroup Manager Documentation > Autodesk Inventor > Advanced Techniques > Managing iPart Factories in Autodesk Inventor > Specifying the Names of CAD Documents
  
Specifying the Names of CAD Documents
When you add a row to the iPart table, the value for the first column, Member, is generated automatically. The Member name determines the file name for the instance.
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If you choose a different column to control the File Name, then you must ensure that the values are unique. Otherwise, you will not be able to save the iPart factory and its instances.
The file name of an instance CAD document is derived from the iPart Factory instance name and the extension of the model, instance_name.model_extension.