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# What should I do if my inventory feed returns 0 quantities?

When your inventory feed returns 0 quantities, Stock Sync may trigger a **zero-inventory safety warning**, such as **“Warning - update halt: detected over 80% inventory set to zero.”** This occurs when the system detects that an unusually large proportion of products would be updated to quantity 0. It can be caused by an **empty or incomplete feed, incorrect quantity-field mapping, or filters unintentionally excluding items**.

To resolve this:

• Check that your feed file is not empty and contains valid quantity values.
• Review your mapping to ensure the **Quantity** field is mapped to the correct column.
• Verify that no filters are unintentionally excluding items from the feed.
• Review the change log or run a Preview Sync to confirm whether the proposed zero-quantity updates are correct before applying them.

If the zero quantities are expected, go to **Account > Profile > Quantity Zero Alert** and adjust the alert threshold. This is a general setting that applies to all feeds. If the feed still imports incorrect values after these checks, run the sync again and contact support for further investigation.