In the digital age, inventory management poses significant challenges due to the complexity of maintaining consistency, scalability, and low latency across various sales channels, both online and offline. The technical difficulties include ensuring real-time accuracy in stock levels, managing geographically partitioned databases, and handling product complexities such as items being moved, lost, or damaged. Effective inventory systems require high availability, global consistency, and flexible scaling to handle peak sales without overspending. CockroachDB is highlighted as a solution for its ability to maintain consistency and scalability by offering multi-region support and a change data capture feature that enables real-time updates without overloading primary databases. This approach allows application services to stay synchronized with inventory data without constant querying, which would otherwise impact performance. The article provides examples of how major retailers use robust database architectures to support scalable and resilient inventory management systems, illustrating the importance of choosing the right tools and architecture to meet diverse business needs.