The performance and development of physical store retail and online sales under the epidemic has forced many retailers to rethink the business model of omni-channel retail and online-merge-offline (OMO) integration to meet new retail opportunities. STOREBERRY’s cloud based POS system can integrate omni-channel online and offline data, automatically link sales records of various channels, integrate physical store and online store inventory management, and synchronize online and offline customer data to meet current customers' new retail consumption patterns.