If you have purchased a legitimate SketchUp Pro 2019 license, here's how authorization works:
: Open the application on your computer.
No, a 2019 license is only valid for SketchUp 2019.
If you have lost your credentials, I can guide you on how to contact Trimble support or use the license manager to recover them. Are You Having Trouble with Authorization? Updating Licence for 2019 - Pro - SketchUp Community Sketchup Pro 2019 License Key And Authorization Number
If you have the software running on an older machine, you can retrieve the serial number directly from the user interface:
While subscriptions represent ongoing costs, they offer benefits:
Using unauthorized SketchUp Pro 2019 license keys violates: If you have purchased a legitimate SketchUp Pro
What (Windows or Mac) are you currently using?
If you cannot find your license email, you should contact SketchUp Support or your local reseller with your purchase details. How to Authorize SketchUp Pro 2019
If you are currently using a 2019 license and considering an upgrade, remember that 2019 perpetual licenses do not receive automatic updates to newer versions. While you can continue to use 2019, the current SketchUp subscription services offer cloud storage and updated features. Are You Having Trouble with Authorization
Pro Tip: If you are upgrading from 2018, be aware that activating 2019 may restrict your 2018 license usage, according to SketchUp Community discussions . Troubleshooting License Issues
If you encounter issues during activation, ensure that:
Which of those would you like?