> ## Documentation Index
> Fetch the complete documentation index at: https://developers.redo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CheckoutDiscountRuleCollectionsConditionInput

> Match on cart products in listed collections.

**match** `[CheckoutDiscountRuleMatch!](/docs/api-reference/v3/reference/checkout/checkout-discount-rule-match)` *required*

How many cart products must be in at least one listed collection.

**shopifyCollectionIds** `[String!]!` *required*

Shopify collection GIDs or numeric ids, at least one. Numeric ids are saved as GIDs.


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