Shopify inventory tracking wrong: why is stock not reducing after orders?
Inventory problems on Shopify usually involve stock not syncing, quantities not reducing, or locations disagreeing about availability. Sellers should determine which app or native location is supposed to control inventory.
Stock goes wrong when location rules, app ownership, fulfillment flows, or tracking settings conflict with each other. In multi-location stores the wrong location or app may be controlling the visible quantity.
Review the inventory and location settings first, then compare any connected app logic before changing product quantities manually. If orders and stock updates still do not line up, contact support with the product, location, app, and example orders that demonstrate the mismatch.
Official URLs to review: