In the modern era, the use of electronic word-of-mouth (eWOM) and social marketing has become increasingly important for businesses, especially in the overseas store industry. This is due to the fact that consumers are now more connected than ever before, and are able to share their opinions and experiences with a global audience at the click of a button. As a result, businesses need to be able to effectively analyze and apply data from eWOM and social marketing in order to stay competitive in the market. One of the key ways in which businesses can do this is through the use of customer relationship management (CRM) systems. These systems allow businesses to collect and analyze data from a wide range of sources, including social media, online reviews, and customer feedback. By doing so, businesses are able to gain valuable insights into the preferences and behaviors of their customers, and can use this information to tailor their marketing strategies accordingly. In the overseas store industry, this is particularly important, as businesses need to be able to understand the needs and preferences of customers from different cultural backgrounds. By using CRM systems to analyze data from eWOM and social marketing, businesses can gain a better understanding of the specific needs and preferences of their overseas customers, and can use this information to develop more targeted marketing strategies. Furthermore, the use of data analysis and application of eWOM and social marketing can also help businesses to identify and capitalize on emerging trends in the market. By analyzing data from social media and other online sources, businesses can gain insights into the latest trends and developments in the industry, and can use this information to stay ahead of the competition. Overall, the analysis and application of eWOM and social marketing through CRM systems is crucial for businesses in the overseas store industry. By effectively analyzing and applying data from these sources, businesses can gain valuable insights into the needs and preferences of their customers, can develop more targeted marketing strategies, and can stay ahead of emerging trends in the market. As a result, businesses that are able to effectively utilize these tools are likely to see greater success in the overseas store industry.