What (Windows or Mac) are you currently using?
: The authorization number, often used in conjunction with the license key, further validates the user's right to use the software. It's an additional layer of verification that ensures the software's legitimate distribution and use. Sketchup Pro 2019 License Key And Authorization Number
A license key is a unique code that unlocks the full features of SketchUp Pro 2019. It is a digital signature that verifies the authenticity of the software and grants the user permission to use it. The authorization number, on the other hand, is a code that activates the software and links it to a specific computer or device. What (Windows or Mac) are you currently using