If your official license key isn't working, the solution is usually administrative rather than technical: Check the Extension Manager
: A license key for SubD 1.0 or 2.0 may not work for a newer version unless you have an active maintenance plan or have paid for an upgrade. The Risks of "Working" License Keys from Third Parties sketchup subd license key work
: Ensure you have the latest version of SUbD (v2.3.0 as of late 2025) and its required dependency, LibFredo , installed via the Extension Manager . If your official license key isn't working, the
, or try reinstalling the extension to refresh the license check. SketchUp Community How to purchase subd license in sketchup - Extensions SketchUp Community How to purchase subd license in
You have three safe, official ways to get the SubD plugin:
: If the license is tied to a subscription or digital ID, try signing out and back into the Extension Warehouse or your Trimble account to refresh the authorization.