: Copy-pasting sometimes introduces invisible characters or incorrect dash symbols. Type the serial number manually to avoid this issue.
SketchUp Pro 2016 includes a 30-day free trial period that begins the first time you launch the software. During this trial, you can use all Pro features without entering a license. The trial allows you to test the software before committing your license to that specific computer. Once you add your license, the trial period ends, and the software becomes permanently activated. sketchup 2016 license key and authorization code
Tip: Using copy and paste is recommended to avoid typos, but sometimes pasting into a plain text editor like Notepad first can clear hidden formatting issues. the trial period ends