Additional Capabilities > Windchill Aerospace & Defense > Using Windchill Aerospace and Defense Configuration Management Features > Windchill Aerospace & Defense Interface > Product Structure Effectivity Range Filter
  
Product Structure Effectivity Range Filter
Once your site has established its effectivity settings, you can filter your product structure using the effectivity range filter (also known as a serial number filter).
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Your site might choose a display name other than “Serial Number Filter.”
To use the filter, navigate to the Structure tab on a part information page and select Edit Filter
Select the Serial Number Filter tab to limit the product structure to the configuration item and design solution branches that meet the serial number criteria entered.