If you attempt to register a third machine, the activation wizard will throw an error indicating you have exceeded your maximum seat limit.

Click the Add License button in the bottom right corner of the welcome dialog box.

Once you have your valid credentials, follow these steps to authorize your software copy:

If you previously purchased a legitimate copy of SketchUp Pro 2017 and need to reinstall it on a new computer, you can retrieve your credentials using these methods: 1. Check Your Original Purchase Email

This tier required a commercial purchase. It locks access to advanced features like Solid Tools, CAD exporting, and Layout.

Open the application. If your trial has expired, a license dialogue box will appear automatically. If not, go to Help > License .