Artificial intelligence (AI) is changing the way businesses interact with customers. One of the most significant contributions of AI to customer service is the creation of conversational chatbots, which provide pre-built models, tools and interfaces that makes customer interaction easier and faster. Today, with natural language processing technologies and the growing use of Large Language Models, AI-powered chatbots can understand and process human language, enabling them to respond appropriately to customers’ input and create unique and personalised multichannel communication experiences. To create these chatbots, businesses can either opt for custom development, which usually requires significant technical expertise and resources, or use platforms based on no-code approach. The latter provide a user-friendly interface based on pre-coded components, templates and other tools that allow, even non-technical users, to create and deploy in a faster, more accessible and cost-effective way, chatbot applications. After a brief introduction about the digital transformation of the customer engagement process, this chapter introduces the chatbot as a new tool to radically innovate interactions with customers. It describes the emerging no-code chatbot paradigm by highlighting both its functional and technological issues. Finally, the open-source tool from Tiledesk.com case is introduced, together with an example of a real application.