It is important to note that SketchUp Pro 2019 reached its "End of Support" from Trimble in early 2022 [2, 3]. Because this version is no longer officially supported, the way licenses are handled has changed significantly. Licensing and Authorization Facts No Public List:

There are several ways to obtain a Sketchup Pro 2019 serial number and authorization code:

Visit the official SketchUp License Manager on their website [1, 5]. Contact Support:

: If you purchased through a third-party vendor, they are responsible for distributing your serial number and authorization code. How to Authorize SketchUp Pro 2019 Launch SketchUp : Open the application on your desktop.