---
title: "Send Broadcast"
method: POST
path: "/api/v1/autosend/broadcast"
tags: ["autosend"]
---

# Send Broadcast

`POST /api/v1/autosend/broadcast`

Kick off a (chunked, background) bulk send of one announcement to the whole base.

AutoSend has no audience broadcast, so this fans the message out over the
workspace's customers in batches of 100. Progress is tracked in config and
surfaced via /autosend/broadcast/status.

## Headers

- `authorization` string, nullable — Bearer <token>

## Request body

- AppRoutesAutosendBroadcastRequest
  - `subject` string, required
  - `body_html` string, required
  - `body_plain` string, nullable
  - `reply_to` string, nullable
  - `unsubscribe_group_id` string, nullable

## Response `200`

Successful Response

- EnvelopeDict
  - `data` object, required
  - `meta` Meta
    - `request_id` string
    - `timestamp` string, date-time
    - `total` integer, nullable
    - `truncated` boolean, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-02** `6bd3ca9033ae` — 2 info
  - the `meta` response's property default value changed from `{"request_id":"","timestamp":"2026-09-01T18:59:27.102736"}` to `{"request_id":"","timestamp":"2026-09-02T16:58:28.431377"}` for the status `200`
  - the `timestamp` response's property default value changed from `2026-09-01T18:59:27.102736` to `2026-09-02T16:58:28.431377` for the status `200`

[Change history](https://skmtc.dev/minro/apis/minro-cs-platform/changes/api/v1/autosend/broadcast/post.md)

---

[API](https://skmtc.dev/minro/apis/minro-cs-platform.md) · [All operations](https://skmtc.dev/minro/apis/minro-cs-platform/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/minro/minro-cs-platform/revisions/6bd3ca9033ae/schema)