---
title: "Update an audience list"
method: PATCH
path: "/audience/lists/{listId}"
tags: ["Audience"]
---

# Update an audience list

`PATCH /audience/lists/{listId}`

## Request

- Base URL: `https://app.lettr.com/api`
- URL: `https://app.lettr.com/api/audience/lists/{listId}`
- Auth: HTTP bearer

Partially update an audience list. If no fields are provided the existing list is returned unchanged. Requires the `audience:write` scope and is blocked for sandbox API keys.

## Path parameters

- `listId` string, uuid, required

## Request body

- UpdateAudienceListRequest: Request to update an audience list. All fields are optional.
  - `name` string: New list name (must remain unique within the team)

## Response `200`

Updated

- ShowAudienceListResponse
  - `message` string, required
  - `data` AudienceListView, required: Audience list summary
    - `id` string, uuid, required: List ID
    - `name` string, required: List name
    - `contacts_count` integer, required: Number of contacts in the list

## Other responses

- `401`: Unauthorized - Missing or invalid API key
- `403`: Forbidden - API key does not have the required scope
- `404`: Resource not found
- `422`: Validation error
- `500`: Internal server error
- `503`: Service unavailable - the API key could not be verified, so the request was not processed. This does not mean the key is invalid; retry after the delay given in the Retry-After header.

---

[API](https://skmtc.dev/lettr/apis/lettr-api.md) · [All operations](https://skmtc.dev/lettr/apis/lettr-api/llms.txt) · [OpenAPI document](https://skmtc.dev/lettr/apis/lettr-api/revisions/48ef0dac1ebd?raw)