Thailand's economy is driven by consumption, with the retail business serving as a key mechanism to stimulate consumer spending across the country. Retail ranks as the second-highest revenue-generating sector after industry and the third-largest employer after agriculture and services. Retail establishments can be found everywhere, ranging from small-scale operations such as street vendors, stalls, and carts to large-scale retail activities like department stores, shopping centers, and convenience stores. The retail business today faces numerous challenges, especially the rise of online commerce, which has become a new channel for buying and selling, and consumer behavior increasingly favoring screen-based purchases over in-store shopping. Consequently, personnel at all levels in the retail industry—whether sales staff, store management personnel, or loss prevention specialists—play a crucial role in driving the business to achieve its objectives. These individuals must perform their duties in compliance with the established Occupational Standards to enhance their capabilities, whether they are existing employees or new hires. For more details on Occupational Standards in the Retail Business Profession, visit: http://tpqi-net.tpqi.go.th/home/occ/industrialInfo/RTS