Trimble still offers legacy versions of SketchUp Make for those who need them. SketchUp Make 2014 is for non-commercial work and does not require any serial number or authorization code.
For non-commercial users, Trimble offered – a free version for home, personal, and educational use. This did not require a serial number or authorization code. If you only need basic modeling without professional export features (like CAD or PDF export), you can still download and run SketchUp Make 2014 legally with no license key. sketchup 2014 serial number and authorization code
Search your inbox for "SketchUp License" or "Trimble." The email sent at the time of purchase contains both the serial and authorization code. Trimble still offers legacy versions of SketchUp Make
A web-based version that works in any browser for personal use. SketchUp Go: A low-cost subscription for iPad and Web. This did not require a serial number or authorization code
: Click Add License (or OK) to complete the activation. Important Status for Version 2014 Network license authorization - help - SketchUp Forums
To activate SketchUp 2014, follow these steps:
Educational institutions that purchased SketchUp 2014 under volume licensing or educational lab licenses may have received serial numbers specifically for those programs. Note that these educational licensing programs have also evolved, and SketchUp no longer issues new perpetual licenses for educational use.