Alternative workflows
If you have already purchased the plugin but are stuck on getting the registration to pull through, follow this sequence:
with other SketchUp extensions. Share public link
For your base SketchUp software (Pro or Studio), licensing works differently. . Your license is tied to your Trimble ID, and activation is handled by signing into the software. Classic licenses, which used serial numbers and authorization codes, are only relevant for very old, perpetual versions of SketchUp and are no longer sold.
You’ve just downloaded SketchUp’s powerful SubD extension—the go-to tool for organic modeling, subdivision surfaces, and smooth geometry. You paste your license key, hit “Activate,” and... nothing. Or worse: an error message reading “Invalid License” or “Activation Failed.”
The SUbD licensing system is distinct from the standard SketchUp subscription model. It uses a perpetual-style seat linked to an individual user. SketchUcation Single User, Multiple Machines
Before troubleshooting, ensure you know exactly which extension you bought.
: Files claiming to be "key generators" for SketchUp plugins are high-traffic targets for trojans. Because plugins run within SketchUp's Ruby API, a compromised plugin can access your file system. Phoning Home
If you have installed SubD on a laptop and a desktop, you may have reached the limit. Deactivate one first.
: Paste the Serial Number and Authorization Code provided in your purchase confirmation email. 4. Troubleshooting Common Issues
Summary
SubD relies on four-sided faces (quads) to calculate smooth subdivisions. Avoid triangles (tris) and multi-sided polygons (ngons) where possible.
Pros
If your subdivision extension is not working, here are the most common problems and their solutions.
