When you save the Conversational Flows instance, the dialog is synchronized to the AI Provider. That is, a JSON object is created including the necessary changes, and it's sent to the Provider to update the conversational model.
Additionally, There is a Synchronize Chatbot menu option which allows to force the synchronization although the instance hasn't got pending changes to save.
When you synchronize (as well as when you save the instance), the GXCF_<Conversational Flows instance name>Chatbot.config file is updated (which contains the necessary information to connect to the AI Provider).
Generate Chatbot menu option