Looking for a "free" serial number or authorization code for might seem like a quick fix, but it's a path that usually leads to more trouble than it's worth.
For higher-education students and teachers, Trimble provides a massive discount. You can often get a full SketchUp Pro license for a fraction of the commercial price (usually around $55 USD per year), giving you a legitimate authorization code and full support. How to Properly Authorize SketchUp Pro Looking for a "free" serial number or authorization
Using unauthorized software can lead to heavy financial fines and legal action from software developers like Trimble. Looking for a "free" serial number or authorization