When I input my license key, it says that the code is not valid.

Please follow these steps if you get an error message about an invalid license key:

1. Make sure you have the most recent version of your product installed.
2. Make sure you are using the correct license key for your product.  You can have your license key resent to your email using this page.
3. Make sure you are activating the correct product with the correct key.  For example, if you purchased Artisan, you need to activate using the Artisan license manager.  You can't activate it using the license manager for another plugin.
4. Make sure you copy / paste your code into the activation dialog.  Be sure to not include any extra spaces.
5. If the steps don't work, try performing a clean install of your plugin.