. While SketchUp officially ceased selling new Classic Licenses on November 4, 2020, existing licenses for the 2020 version remain valid and require a specific Serial Number Authorization Number to activate. Symetri.us Activation for Classic Licenses
A secondary unique alphanumeric code required to "unlock" the software. SketchUp Community How to Authorize Your Copy Open SketchUp 2020: The "Welcome to SketchUp" window should appear. Navigate to Licensing: tab on the left sidebar. Add License: Add Classic License (ensure the "Classic" tab is selected). Enter Codes: Copy and paste your Serial Number Authorization Number exactly as they appear in your confirmation email. Add License to finalize the activation. Finding Lost License Information
There are three common scenarios:
Even if a cracked version works initially, you cannot install official patches, security updates, or compatibility fixes. Your version will remain frozen, potentially with known bugs.
Note: For security reasons, the interface displays the full Serial Number but masks most of the Authorization Number. 3. Use the Online License Lookup Tool
Click on the License tab on the left-hand menu.
If you are reinstalling the software or deploying it on a secondary workstation, use this sequence to apply your activation data: Step 1: Open the Welcome Dialog Launch the application on your machine.
If you still have SketchUp Pro 2020 running on an old computer, you can view your serial number directly within the application interface:
Embedded web features—such as 3D Warehouse , Add Location , and Extension Warehouse —no longer work within the 2020 interface because they require modern authentication APIs.
If you cannot find the email, you can use the official SketchUp License Manager . You will need the email address used for the purchase and your serial number.
Trimble allows the transfer of Perpetual Licenses. You can buy a used 2020 license from a company or designer who no longer needs it. Websites like or specialized CAD marketplaces facilitate this.
A shorter, unique code (e.g., 1a2b3c4d5e ) that authorizes that specific serial number to run on your machine.
A SketchUp Pro 2020 license key is a unique code that unlocks the full features of SketchUp Pro 2020. Without a valid license key, you can only use SketchUp Pro 2020 in trial mode, which has limited features and functionality. The license key is a 20-character code that is used to activate your SketchUp Pro 2020 software, allowing you to access all the features and tools.
There are several ways to get a SketchUp Pro 2020 license key and authorization number: