---
title: "Update a creator scheduled mass message"
method: PATCH
path: "/creators/{creatorUserUuid}/chats/mass-messages/{messageUuid}"
---

# Update a creator scheduled mass message

`PATCH /creators/{creatorUserUuid}/chats/mass-messages/{messageUuid}`

## Request

- Base URL: `https://api.fanvue.com`
- URL: `https://api.fanvue.com/creators/{creatorUserUuid}/chats/mass-messages/{messageUuid}`
- Auth: OAuth 2
  - Authorization code: `https://auth.fanvue.com/oauth2/auth`
  - Token URL: `https://auth.fanvue.com/oauth2/token` scopes: `write:chat`, `read:creator`

Update a scheduled mass message for the specified creator before it is sent.

Only scheduled mass messages can be updated.

## Path parameters

- `creatorUserUuid` string, uuid, required
- `messageUuid` string, uuid, required

## Headers

- `X-Fanvue-API-Version` string, required

## Request body

- object
  - `text` string
  - `mediaUuids` string[]
  - `price` number, nullable
  - `includedLists` object
    - `smartListIds` string[]: Smart list identifiers — fixed string types such as 'subscribers' or 'followers', not UUIDs. The deprecated alias `smartListUuids` is also accepted.
    - `customListUuids` string[]
    - `dynamicSmartListUuids` string[]: UUIDs of creator-defined dynamic smart lists, as returned by GET /chats/lists/dynamic. Resolved to member fans at send time.
  - `excludedLists` object
    - `smartListIds` string[]: Smart list identifiers — fixed string types such as 'subscribers' or 'followers', not UUIDs. The deprecated alias `smartListUuids` is also accepted.
    - `customListUuids` string[]
    - `dynamicSmartListUuids` string[]: UUIDs of creator-defined dynamic smart lists, as returned by GET /chats/lists/dynamic. Resolved to member fans at send time.
  - `scheduledAt` string, date-time: Optional scheduled date/time in ISO 8601 format. Alias `scheduled_at` is also accepted.

## Response `204`

Mass message updated successfully

## Other responses

- `400`: Bad Request - API version not supported OR validation failed OR invalid UUID
- `401`: Unauthorized Response
- `403`: Unauthorized Response
- `404`: Not Found Response
- `410`: API version no longer supported (sunset)
- `429`: Too many requests - rate limit exceeded

## Changes

- **2026-10-10** `79b9aba8a759`: 2 info
  - added the new optional request property `excludedLists/dynamicSmartListUuids`
  - added the new optional request property `includedLists/dynamicSmartListUuids`

[Operation history](https://skmtc.dev/fanvue/apis/fanvue-api/changes/creators/:creatorUserUuid/chats/mass-messages/:messageUuid/patch.md)

---

[API](https://skmtc.dev/fanvue/apis/fanvue-api.md) - [All operations](https://skmtc.dev/fanvue/apis/fanvue-api/llms.txt) - [OpenAPI document](https://skmtc.dev/fanvue/apis/fanvue-api/revisions/966260af2770?raw)