Customer Relationship Management (CRM) digital transformation is a crucial aspect of modern business operations, especially in overseas store markets. This article aims to provide a deep analysis of the case studies and practical experience in business process reengineering related to CRM digital transformation in overseas store markets. In today's globalized world, businesses are expanding their operations to overseas markets to tap into new customer bases and increase their market share. However, managing customer relationships in these overseas markets can be challenging due to cultural differences, language barriers, and varying customer preferences. This is where CRM digital transformation plays a vital role in streamlining and optimizing customer relationship management processes. Case studies of successful CRM digital transformation in overseas store markets reveal the importance of leveraging technology to enhance customer interactions, improve data management, and personalize marketing efforts. For example, a multinational retail chain implemented a CRM system that integrated customer data from its overseas stores, allowing the company to gain a comprehensive view of customer behavior and preferences across different markets. This enabled the company to tailor its marketing strategies and product offerings to better meet the needs of customers in each overseas market. Practical experience in business process reengineering related to CRM digital transformation in overseas store markets highlights the need for a holistic approach that encompasses people, processes, and technology. It involves rethinking and redesigning existing business processes to align with the capabilities of CRM systems and digital tools. This may include redefining customer touchpoints, automating repetitive tasks, and implementing data-driven decision-making processes. Furthermore, successful CRM digital transformation in overseas store markets requires a deep understanding of local market dynamics and customer behavior. This involves conducting thorough market research, engaging with local stakeholders, and adapting CRM strategies to suit the unique needs of each overseas market. For instance, a global hospitality chain revamped its CRM approach in overseas markets by incorporating cultural nuances and local preferences into its customer engagement strategies, resulting in improved customer satisfaction and loyalty. In conclusion, CRM digital transformation in overseas store markets is a complex yet essential endeavor for businesses seeking to expand their global footprint. By analyzing case studies and drawing from practical experience in business process reengineering, businesses can gain valuable insights into the strategies and best practices for successful CRM digital transformation in overseas store markets. This includes leveraging technology, understanding local market dynamics, and reengineering business processes to optimize customer relationship management in overseas markets.