What is tracking quantity?
Tracking quantity in Shopify is a feature that lets you keep an eye on how many items you have available for each product in your online store. It's useful for managing your inventory well and making sure you don't oversell products.

How does it work?
When you enable quantity tracking for a product in Shopify, it begins to monitor your available units. As customers make purchases, Shopify deducts those items from your inventory. This keeps your stock levels precise. If an item runs out, Shopify alerts you, preventing sales of out-of-stock products.