---
title: "Get content types that use an existing UI extension"
method: GET
path: "/{id}/contenttypes"
tags: ["UI Extensions Config Operations"]
---

# Get content types that use an existing UI extension

`GET /{id}/contenttypes`

Get content types that use an existing UI extension, identified by its ID. It searches across all projects. If no content type is using the extension, an empty array will be returned. If the extension does not exist, an HTTP 404 Not Found response will be given.

## Path parameters

- `id` string, required

## Response `200`

OK

- ContentType[]
  - `name` string, required — identifying name of this Content type
  - `enabled` boolean — whether the content type is enabled, true by default
  - `type` 'Document' | 'FieldGroup', required — the type of the content type (eg Document, FieldGroup). Valid values: Document, FieldGroup.
  - `displayName` string — The display name of the content type. The default value is the name of the content type. A display name is single-line plain text and may contain spaces and special characters.
  - `fields` ContentTypeField[] — list of fields of this content type
    - `name` string, required — identifying name of this field within its content type
    - `caption` string — the caption of a field is the label that is displayed directly above the field in the editing template. Authors will know a field by its caption. A caption is single-line plain text and may contain spaces and special characters.
  - `system` System — System properties
    - `createdBy` string — the name of the user that created the webhook configuration
    - `createdAt` string, date-time — date of create
    - `updatedBy` string — the name of the user that updated the webhook configuration
    - `updatedAt` string, date-time — date of update

## Other responses

- `403` — Forbidden
- `404` — Not Found

---

[API](https://skmtc.dev/bloomreach/apis/documents-delivery-api-2-0.md) · [All operations](https://skmtc.dev/bloomreach/apis/documents-delivery-api-2-0/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/bloomreach/documents-delivery-api-2-0/revisions/87bfc06578c2/schema)