For SketchUp 2025, the standard way to activate the software is by signing in with your Trimble ID. While "Serial Numbers" and "Authorization Codes" were the hallmark of the older Classic Perpetual Licenses, Trimble officially discontinued the sale of these licenses in November 2020.
What is a SketchUp 2025 Authorization Code? sketchup 2025 serial number and authorization code
Additional Resources
If you purchased a "Classic" perpetual license (no longer sold for new versions but applicable to older maintenance plans), your details are sent via email. For SketchUp 2025 , the standard way to