Item Number in a BOM Table

If you select Do not change item numbers in the BOM PropertyManager and you change the file name (for example, using Save As or Replace Component) within the referenced assembly, the BOM table retains the BOM item number of the original component being replaced.

You can define how to handle replaced components in BOM table. In the BOM PropertyManager, in the Keep Missing Item section, Replaced components defines how to handle replaced components when you select Keep Missing Item, regardless of the Do not change item numbers setting.