For professional designers or architects, using unlicensed software can lead to legal penalties and damage to professional reputation. Legitimate Ways to Access SketchUp
If you encounter issues with your SketchUp Pro 2018 serial number or authorization code, try the following: Sketchup Pro 2018 Serial Number And Authorization Code List
Epilogue
Sharing a public list of "serial numbers and authorization codes" for SketchUp Pro 2018 is not possible, as these licenses are unique to each individual or organization that purchased the software Under the standard End User License Agreement (EULA),
In the "Welcome to SketchUp" window, click . Ensure the Classic tab is selected. For professional designers or architects
Under the standard End User License Agreement (EULA), a single-user Classic License granted specific installation rights: Dual Activation : A single user could authorize the software on up to two devices (e.g., a desktop and a laptop). Non-Concurrent Use