Choose the Magento attribute set that new products get when Junipeer creates them.
Choose from the list. It shows the attribute sets in your Magento.
Good to know
This setting is required.
If the list is empty, check that Magento is connected. An empty list almost always means the connection, not the setting.
If a value is missing, create it in Magento first, then click Clear Cache on the settings page so the list is refreshed.