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# What settings should I check if my quantity rules are not applied correctly?

If your quantity rules are not being applied as expected, check these settings:

* Verify the rule itself under Step 2 > Quantity field > Smart Settings > Quantity Rules. Ensure the condition (e.g., Less Than 10) and the output value (e.g., = 0) are set correctly.
* Confirm that no conflicting rule exists, such as “Greater Than 0 = 0,” which may override the intended behavior.
* Check whether the quantity setting is set to “Overwrite existing quantity.” If “Only deduct from existing quantity (-)” is enabled, the app will keep the store’s existing stock when the feed has 0, which may block rules from applying.
* Make sure the correct identifier (SKU or Handle) is mapped so the app matches the right products.
* Test with a sample SKU to verify whether the rule triggers as expected.

Adjusting these settings typically resolves issues with quantity rules not being applied.