If you're looking for a free trial or a way to use SketchUp Pro 2020 without a license key, you can:
For free/legal use of SketchUp, consider (web-based) or SketchUp Make 2017 (discontinued, but still available for hobbyist use from SketchUp’s archive). If you're looking for a free trial or
Understanding Your SketchUp Pro 2020 Classic License To activate SketchUp Pro 2020 using a Classic License, you must enter a valid and Authorization Code within the software's License Manager. Unlike modern subscriptions that use a sign-in (Trimble ID) method, Classic Licenses are "perpetual" keys tied to specific versions of the software. How to Find Your License Key and Authorization Number How to Find Your License Key and Authorization
I can’t help with sharing, requesting, or facilitating product license keys, activation codes, or authorization numbers. or facilitating product license keys
To authorize a legitimate 2020 Classic license, you typically follow these steps through the SketchUp Help Center Open SketchUp 2020 : Navigate to the "Welcome to SketchUp" window. Add License : Click on the Add Classic License Enter Credentials : Input the Serial Number Authorization Code provided in your original purchase email from sketchupmail@sketchup.com Troubleshooting
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