Which bot channel(s) allow you to preview the bot within Bot Builder?

The option that allows you to preview the bot within Bot Builder is the chat channel. This functionality is crucial for developers and designers who are creating chatbots, as it enables them to test and fine-tune the bot's responses and behaviors in a controlled environment before deploying it to end-users.

While SMS, WhatsApp, and Facebook Messenger are popular channels for bot deployment, they do not offer the same immediate preview capabilities within the Bot Builder interface. Instead, these channels typically require a complete integration and deployment process before users can interact with the bots, making iterative testing more challenging. In contrast, the chat channel provides a streamlined way to visualize interactions and adjust settings in real-time, facilitating a smoother development and testing experience.