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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/data-collections-extension/introduction.md

## Article Content:

# About the Data Collections Extension JSON Schema

Use this [JSON schema](https://dev.wix.com/docs/api-reference/business-solutions/cms/collection-management/data-collections-extension/data-collections-extension-object.md) to define collection schemas and optional initial data for the [data collections app extension](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/backend-extensions/data-collections/about-data-collections-extensions.md).

The data collections extension allows apps to create CMS data collections when installed on a site. When a Wix user installs your app, the collections are automatically created in the site's CMS with the schemas and data you specified.

Learn more about [data collections app extensions](https://dev.wix.com/docs/build-apps/develop-your-app/extensions/backend-extensions/data-collections/about-data-collections-extensions.md).