The integration will only monitor the sites and products that are added to the Easee official app. So make sure that you configure that first before you try to use the integration. If there are no products added to the app, the integration will give you a startup message "No sites found in this account".

It works this way because it does not make sense to monitor ~100 chargers in a large installation, where the user is most likely only interested in their specific charger.