SketchUp Pro requires periodic online re-validation (typically every 30 days). Offline workarounds don't last.
To unlock the full potential of SketchUp Pro 2023, you need to enter a valid serial number and authorization code. The serial number verifies your software license, while the authorization code ensures that you're using a genuine copy of the software. Without these codes, you'll be limited to the free trial version, which may not offer all the features and functionalities you need.