After you have purchased a product you will receive an email from us to the inbox of the email address you provided when purchasing.

In this email will be the license key needed for activating your license as well as the link to the download page for the product you have purchased.

1. Download the plugin and install using these instructions.
2. Restart SketchUp
3. Open the menu Extensions->PLUGIN NAME->License
4. Click the 'Add License' button.
5. A window will open where you can enter your email address used to purchase and your license key.

Your license should now be activated! 

If you get an error about having an invalid key, please see this article.