After you enter your Purchase Code in artbees.net dashboard you will have the API Key at hand. Now you need to go to your WordPress installation and follow the steps below.
Now go to your WordPress Installation in which you have already installed Jupiter or The Ken.
For Jupiter: Go to Main Dashboard Jupiter > Control Panel > Register Product.
For The Ken: Go to Main Dashboard Menu > Register Product.
You will see an input box section in Register Product page, into which you need to add your API Key which you obtained in step 1. Then click on the Register button.
If everything is correct, you will see a message that your API key is verified.
At this stage you successfully registered your theme with Artbees, and you can double-check that by going to the dashboard menu of artbees.net, and in the Register Product page you should see the Status your API Key as Active. You should also see your installation domain.