Even if you have a valid license key, running SketchUp 2016 today comes with challenges:
If SketchUp is already installed on another computer, you can view the serial number by going to Help > License > License Info (Windows) or SketchUp > License (Mac). 2. How to Authorize SketchUp Pro 2016 Follow these steps to activate your software: sketchup 2016 license key and authorization code
: SketchUp stopped selling "Classic" perpetual licenses in November 2020 ( SketchUp FAQ ). Even if you have a valid license key,
: Look for an email from sketchupmail@sketchup.com . sketchup 2016 license key and authorization code