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

# Hierarchies

> Product category hierarchies.

Import and read product hierarchies, and look up the products under a hierarchy node.

<Info>
  **Integration guide:** [Importing product and article information](/integration/other-integrations/retail-master-data/importing-product-and-article-information) — how hierarchies, reference books and products relate.
</Info>