If you have a subscription rather than a classic license, remember that you won't have a serial number. You simply manage your plan through the Trimble Account Management Portal. Trial and Educational Options
SketchUp Pro 2021 is a popular 3D modeling software used by architects, engineers, and designers worldwide. To access its advanced features, users require a valid serial number and authorization code. This paper provides an in-depth review of the SketchUp Pro 2021 serial number and authorization code list, discussing its importance, benefits, and potential risks associated with obtaining and using these codes.
Using unauthorized serial numbers from "lists" found on third-party sites is a violation of the End User License Agreement and may expose your computer to security risks like malware. Classic License Errors | SketchUp Help