Marketing on Facebook through Fanpage and Groups is one of the important strategies for businesses to reach and interact directly with potential customers. Fanpage is where brands can build and manage their brands, and share content, products, and services with a large number of users. In addition, Fanpage also provides advertising analysis and management tools to help businesses measure the effectiveness and optimize advertising campaigns. A group on Facebook is a place that gathers members with similar interests, needs, or purposes. This is an ideal platform for businesses to create communities, and discuss and share information about products and services. Marketing through Group helps businesses build close relationships with customers, increase interaction, and meet user needs quickly. Overall, using Fanpage and Group effectively helps businesses expand their customer reach, build a strong brand, and maximize the effectiveness of marketing campaigns on the world's largest social networking platform today.