Currently the Aha! to Salesforce integration must be installed using the classic interface. After that, it can be used via the Lightning interface.
As a Salesforce admin, it would be nice to be able to install the app via the Lightning interface as well.
|Release time frame
We upgraded the Ideas Advanced integration with Salesforce to work seamlessly in the Lightning interface. You can capture detailed feedback with dynamic forms, too.
Checkout the blog post for more details on how to upgrade!