After installation you navigate to the Magento backend and click on ConfigBox in the left-hand-side menu.
On your first visit, you will see the post installation assistant
Obtaining your License Key
You obtain a license key on the ConfigBox Store (https://www.configbox.at/en/store) where you can request a trial license.
Pick Magento 2, supply your company information and get directed to the client center.
You can add up to 3 additional domain names for development and testing purposes. Copy the license key and use it in the post-installation assistant.
Enter the information asked in the post-installation assistant and head to the ConfigBox dashboard.
You are now ready to set up your first products and link Magento products to them.