Rich content messages are interactive message formats that guide users toward specific actions by presenting structured elements like list messages, quick replies, and interactive cards. These messages improve the user experience by providing clear, actionable choices while reducing errors and confusion. However, they have limitations, particularly when users need more flexibility. Large Language Models (LLMs) can help overcome these limitations by allowing users to express themselves naturally and handling freeform input in multiple languages. By combining LLMs with rich content messages, businesses can offer a powerful, flexible user experience that balances structure and creativity. To achieve this seamless integration, it's essential to consider key factors such as template limits, flexibility, translations, classification, prompts, sanitization, readability, fallbacks, platform differences, and personalization. By following these ten tips, businesses can master the blend of LLMs and rich content messages, creating best-in-class user experiences that feel intuitive, intelligent, and truly user-friendly.