You are designing an inventory system that must handle multiple warehouses. Which design approach best ensures accurate stock counts across warehouses and prevents overselling?

hard📝 Trade-off Q15 of 15

LLD - Design — Online Shopping Cart

AMaintain separate stock counts per warehouse and use transactions to update atomically

BKeep a single global stock count without warehouse details

CUpdate stock counts asynchronously without locking

DAllow negative stock counts to handle overselling

Step-by-Step Solution

Solution:

Step 1: Consider multi-warehouse stock tracking
Each warehouse should have its own stock count to track inventory accurately.
Step 2: Ensure atomic updates to prevent overselling
Using transactions or locks ensures stock updates are consistent and prevent race conditions.
Final Answer:
Maintain separate stock counts per warehouse and use transactions to update atomically -> Option A
Quick Check:
Atomic updates + per-warehouse stock = accurate inventory [OK]

Quick Trick: Use atomic transactions and per-warehouse counts [OK]

Common Mistakes:

Using global stock ignores warehouse differences
Updating asynchronously causes race conditions
Allowing negative stock hides overselling problems

Master "Design — Online Shopping Cart" in LLD

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Arch Try Challenge Design Recall Scale

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More LLD Quizzes

You are designing an inventory system that must handle multiple warehouses. Which design approach best ensures accurate stock counts across warehouses and prevents overselling?

Step 1: Consider multi-warehouse stock tracking

Step 2: Ensure atomic updates to prevent overselling

Final Answer:

Quick Check:

Want More Practice?