You're looking for information on SketchUp Pro 2019, specifically the license key and authorization number. Here's what I have to share:
To use SketchUp Pro 2019, you'll need a valid license key and authorization number. Here's how to obtain them: Sketchup Pro 2019 License Key And Authorization Number
If you have a SketchUp subscription rather than a classic license, you do need a serial number or authorization code. Instead: Log in directly within the software using your Trimble ID Manage your assigned "seats" through the Trimble Account Management Portal 4. Important Status Notes You're looking for information on SketchUp Pro 2019,