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In SketchUp 2025, licensing has primarily shifted to a subscription-based model where you simply sign in with a Trimble ID
Most users today have a subscription (Go, Pro, or Studio). You simply Sign In with your email (Trimble ID) to authorize the software .
: This usually means the serial number and authorization code do not match the specific version of SketchUp installed (e.g., trying to use a 2024 code for 2025). Copy/Paste Issues
Searching for public serial numbers or "cracked" authorization codes online carries significant risks: Security Threats