Amazon, Zepto, Flipkart - Inventory Management

Design a scalable system to track the inventory of products in a large e-commerce platform. This system should allow for real-time updates when stock levels change due to new product arrivals, purchases, or returns. It must handle high traffic, and support features like notifications for low stock, product reorder triggers, and inventory reports. The system should be able to handle multiple warehouses and locations, track inventory across various product variants (e.g., size, color), and integrate with the order processing and supply chain management systems. Additionally, it should ensure consistency and accuracy in inventory counts, even in a distributed and highly concurrent environment.

Problem Link: https://mastersystemdesign.com/practice/55-product-inventory-tracking-e-commerce