Smart Conversations is currently in open beta. It is straight-forward to configure some of the features and setup the corresponding webhook on the Sinch Customer Dashboard.
Go to any Conversation API app for which you have enabled and configured channels. Navigate to the Smart Conversations section at the bottom of the page, press EDIT, and then toggle Enable Smart Conversations. Now you can select the feature/s to enable.
Note: It's possible to enable Sentiment Analysis and Natural Language Understanding to start testing right away. With other Smart Conversations' features, Sinch will need to customize based on your business requirements. Your Sinch Account Manager will help you with that.
Once you are done selecting the features you want to enable, click SAVE. These features are now enabled on your Conversation API app.