Beginning at Windchill 10.2, Part and Family Table Instances both have an autonumbering option available. By default, Part and Family Table Instances are not autonumbered when they are created.

The concept of Family Table Instance numbering is similar to that of the autonumbering of File Names. See Autonumbering of File Names for a complete discussion.

The autonumbering of Family Table Instance behavior is controlled by the Auto Generate Family Table Instance Number preference. From the Windchill Utilities page, locate Preference Management and navigate to Workgroup Manager Client > Family Table Instance Creation > Auto Generate Family Table Instance Number. The preference default is No.

Behavior when Autonumbering is set to No — When the Auto Generate Family Table Instance Number preference is set to No with default autonumbering for CAD Documents enabled, the user-applied name of the instance is retained. The names added to the instance in the Member column in the Design Table (in the Assembly view), as shown below, will be applied to the Number field for each instance, with the file extension dropped.

However, the Generic (“testasm.iam” in the example) will have an autonumber generated for it, and the Family structure will appear as shown below.

The Folders page view in the same example would look like this:

Behavior when Autonumbering is set to Yes — When the Auto Generate Family Table Instance Number preference is set to Yes, and when instances are added to the design table (in the iAssembly/iPart Author window), upon exit, an auto-generated number is created for the instances according to the CAD Document auto-numbering scheme (refer to the figure below). The member name for the instances added by the user in the design table is overwritten by an auto-generated number, according to the existing CAD Document numbering scheme.