# SKU list promotion rules

Commerce Layer provides a promotional engine built on top of two main resources: [promotions](/core-api-reference/promotions.md) and [promotion rules](/core-api-reference/promotion_rules.md).

SKU list promotions rules are used to trigger the associated promotion only if an order contains any (default) or all (set the `all_skus` attribute to `true`) of the SKUs within the specified list. Optionally, is possible to specify a `min_quantity`, which will overwrite previous rules and will be honored by checking the order's line item quantities and the matching SKU list item.

{% hint style="info" %}
In order for an SKU list promotion rule to apply to [bundles](/core-api-reference/bundles.md), the two resources must share the same [SKU list](/core-api-reference/sku_lists.md) (there is no SKUs partial matching). The `min_quantity` option will be checked against the quantity of the line item associated with the specific bundle.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.commercelayer.io/core-api-reference/sku_list_promotion_rules.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.