by entering the email address associated with the original purchase. Within the App
If you do not have your serial number or authorization code handy, you can retrieve them through the following methods:
to have the details emailed to the address associated with the purchase. Check Inside the App
If you have your serial number but not the code, you can use the SketchUp License Manager
: Use the official SketchUp License Manager by entering the email address associated with your original purchase to have the details resent to you. 2. How to Authorize SketchUp 2016 To activate your software with these credentials: Understanding Your Classic License - SketchUp Help center
To authorize SketchUp Pro 2016, you must use a Classic License
To authorize , you need a unique serial number and authorization code provided at the time of purchase. SketchUp 2016 uses a "Classic License" model, which is permanent for that specific version and differs from modern sign-in-based subscriptions. How to Find Your License Details