---
title: Mapping reference
description: Mappings are defined dynamically or explicitly for each document in Elasticsearch. This section contains explanations for the following mapping components:...
url: https://www.elastic.co/docs/reference/elasticsearch/mapping-reference
products:
  - Elasticsearch
applies_to:
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available
---

# Mapping reference
<note>
  This section provides detailed **reference information** for mapping.Refer to [Mapping](https://www.elastic.co/docs/manage-data/data-store/mapping) in the **Manage data** section for overview, getting started and conceptual information.
</note>

Mappings are defined dynamically or explicitly for each document in Elasticsearch.
This section contains explanations for the following mapping components:
- [Field data types](https://www.elastic.co/docs/reference/elasticsearch/mapping-reference/field-data-types)
- [Metadata fields](https://www.elastic.co/docs/reference/elasticsearch/mapping-reference/document-metadata-fields)
- [Mapping parameters](https://www.elastic.co/docs/reference/elasticsearch/mapping-reference/mapping-parameters)