---
title: "Marketing taxonomies"
slug: "marketing-taxonomies"
abstract: ""
---
# Marketing taxonomies

Marketing taxonomies are used to classify [marketing definitions](https://doc.sitecore.com/xp/en/developers/93/sitecore-experience-platform/marketing-definitions.html "Marketing definitions"). For example, a goal may have one or more goal facets, and an outcome may belong to an outcome group. The following is true of all taxonomies:

- Taxonomies are represented by items in Sitecore.
- Taxonomies are defined by marketers.
- Taxonomies are deployed to the [reference data store](https://doc.sitecore.com/xp/en/developers/93/sitecore-experience-platform/reference-data-service.html "Reference Data Service"). If a taxonomy has not been deployed, it cannot be used in an xDB context such as processing.
- Every definition type has its own taxonomy manager in the Marketing Operations API.

Refer to the  for more information about how to work with taxonomies as a business user.