If you are looking for a "License Key and Authorization Number" for SketchUp 2017
: This is the free version. It does not require a license key. After a 30-day trial of Pro features, it will prompt you to "I Agree" to non-commercial terms to continue using the free desktop version. Sketchup 2017 License Key And Authorization Number
Click the Add License button at the top of the dialog box. If you are looking for a "License Key
If you are looking for a "License Key and Authorization Number" for SketchUp 2017
: This is the free version. It does not require a license key. After a 30-day trial of Pro features, it will prompt you to "I Agree" to non-commercial terms to continue using the free desktop version.
Click the Add License button at the top of the dialog box.