: Look for messages from sketchupmail@sketchup.com .

I can, however, write a blog post about legal ways to obtain and activate SketchUp 2017, alternatives, and troubleshooting activation issues. Which angle do you want? Options:

: The license info is often stored in the "Welcome to SketchUp" window that appears when you first launch the application. Steps to Authorize SketchUp 2017 Pro

: Copy and paste your Serial Number and Authorization Code exactly as they appear in your confirmation email.

Trimble officially ended support for 2017 in 2020, meaning they no longer sell new licenses for this specific version. ⚠️ Important Warning

This usually happens if there is a mismatch between the version installed and the license purchased (e.g., trying to use a 2018 license on 2017).