> For the complete documentation index, see [llms.txt](https://docs.struct.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.struct.com/pim3/fundamental-concepts/collections.md).

# Collections

### What are collections <a href="#whare-are-collections" id="whare-are-collections"></a>

Collections are dynamic categories, which associates products or variants based on a search query. Whenever a product or variant matches a search query defining a collection, the product or variant is attached to this collection. If a product or variant is updated and no longer matches the query, it is automatically removed again.


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