Currently, Lotte Korea Group is present in 22 countries around the world and is the 5th largest corporation in Korea by total assets. In Vietnam, there are 13 Lotte Mart supermarkets and the first Lotte Mart supermarket in Vietnam, Lotte Mart South Saigon, was built in District 7, Ho Chi Minh City, also where the headquarters of Lotte Mart Vietnam is located. Male. Through research on CRM, the article thoroughly understands the needs and habits of customers, approaches and communicates with customers, and manages customer information in the most systematic and effective way in order to offer the best possible solutions. the most suitable products and services, meeting the needs and desires of the retail market in Vietnam. In fact, customer relationship management is quite popular in the world, but it is still new in Vietnam, businesses are still not really aware and focused on the importance of customer relationship management and need to learn from foreign companies like Lotte.