Design
Inventory Management System
Design a warehouse inventory system that tracks products, stock levels, restocking, and multi-warehouse fulfillment.
This is a Low-Level Design (LLD) problem. New to LLD vs HLD? Start here.
01 - Why interviewers ask this
It's a foundational e-commerce backend problem — interviewers check if you reserve/release stock atomically instead of letting concurrent orders oversell the same item.
02 - Where this system exists in the real world
You interact with this design every day.
E-commerce warehouse inventory systems
Retail point-of-sale stock tracking
Multi-warehouse supply chain systems
03 - What you'll master
Solve this once. Know it forever.
Reserve and release stock atomically
Track inventory across multiple warehouses
Trigger reorder alerts at threshold levels
04 - What you'll design
8 functional · 3 non-functional requirements.
Track product stock levels across multiple warehouses
7 more requirements inside
Sign in to unlock the full brief and start designing
05 - Companies that ask this
You may face this exact question in your next interview.
Ready?
Open the canvas.
Design it yourself.
See all requirements, use staged hints, run your code, and compare with community discussions - all on the same canvas.