Integration with Other Applications > Managing CAD and Part Relationships in Windchill > Customizing Auto Associate > Controlling the Creation of Parts by Auto Associate
  
Controlling the Creation of Parts by Auto Associate
The preference, Operation > Auto Associate > Create Associate New Part, specifies whether a new part is created when a matching part is not found by an Auto Associate action. The default is Owner Only for all CAD tools. ECAD authoring applications default to All.
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This action can be hidden or displayed using the ‘Create Part’ profile. This profile setting is used when the workspace used is related to a product or a library.
Possible values are:
Owner Only—If a matching part is not found, a new part is created when the CAD document would associate to a part with an "Owner" association.
Owner and Contributing Image—If a matching part is not found, a new part is created when the CAD document would associate to a part with either an "Owner" or "Contributing Image" association.
All—If a matching part is not found, a new part is created when the CAD document would associate to a part with any product structure association ("Owner", "Contributing Image", and "Image").
Never—A new part is not created if an existing part is not found, even if it contributes to product structure. Auto associate does not fail, the CAD document is skipped, and other selected CAD documents try to associate.