---
title: "Send a mass message as creator"
method: POST
path: "/creators/{creatorUserUuid}/chats/mass-messages"
---

# Send a mass message as creator

`POST /creators/{creatorUserUuid}/chats/mass-messages`

Send a message to multiple users based on selected lists as a creator.  
If `scheduledAt` (or alias `scheduled_at`) is provided, the message is queued for scheduled delivery instead of being sent immediately.

## Path parameters

- `creatorUserUuid` string, uuid, required

## Headers

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

## Request body

- object
  - `text` string
  - `mediaUuids` string[]
  - `mediaPreviewUuid` string, uuid, nullable — UUID of a single media item shown for free as a preview of a pay-to-view mass message. Requires a price and attached media.
  - `price` number, nullable
  - `includedLists` object, required
    - `smartListIds` string[] — Smart list identifiers — fixed string types such as 'subscribers' or 'followers', not UUIDs. The deprecated alias `smartListUuids` is also accepted.
    - `customListUuids` string[]
  - `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[]
  - `scheduledAt` string, date-time — Optional scheduled date/time in ISO 8601 format. Alias `scheduled_at` is also accepted.

## Response `201`

Mass message sent successfully

- object
  - `uuid` string, uuid, required — UUID of the created mass message
  - `publishedAt` string, date, nullable, required — When the message was sent, or null when it is scheduled for later
  - `recipientCount` number, required — Recipients resolved from the given lists at the time of this request. A scheduled message re-resolves its recipients at send time, so this is a preview and GET /chats/mass-messages reports 0 until it sends.

## Other responses

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

---

[API](https://skmtc.net/fanvue/apis/fanvue-api.md) · [All operations](https://skmtc.net/fanvue/apis/fanvue-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/fanvue/fanvue-api/revisions/c5ddcd5c7e72/schema)