---
title: "Send flow message"
method: POST
path: "/v1/messaging/whatsapp/flows/send"
tags: ["WhatsApp Flows"]
---

# Send flow message

`POST /v1/messaging/whatsapp/flows/send`

## Request

- Base URL: `https://apihub.co.il`
- URL: `https://apihub.co.il/v1/messaging/whatsapp/flows/send`
- Auth: HTTP bearer

Send a published flow as an interactive message with a CTA button.
When the recipient taps the button, the flow opens natively in WhatsApp.
Flow responses are received via webhooks.


**Billing:** Request; paid actions are priced in credits (see GET /v1/messaging/prices) · **Rate limit:** 60/min

## Headers

- `Idempotency-Key` string
- `X-Tag` string

## Request body

- object
  - `to` string, required: Recipient phone number (E.164 format, e.g. +1234567890)
  - `body` string, required: Message body text
  - `draft` boolean: Set true to test an unpublished (DRAFT) flow
  - `footer` string: Optional footer text
  - `header` object
    - `text` string
    - `type` 'text'
  - `flow_id` string, required: Published flow ID
  - `flow_cta` string, required: CTA button text (e.g. 'Book Now', 'Sign Up')
  - `accountId` string, required: WhatsApp account ID
  - `flow_token` string: Unique token to correlate responses. If omitted, auto-generated as '<flowId>:<uuid>' so the response can be attributed to this flow in the Flow Responses view.
  - `flow_action` 'navigate' | 'data_exchange': Action type: navigate opens a screen directly, data_exchange hits your endpoint first
  - `flow_action_payload` object
    - `data` object: Optional data to pass to the screen
    - `screen` string: First screen ID to navigate to

## Response `200`

Completed

- object
  - `id` string: Execution id — stable across internal retries; use it with GET /v1/executions/{id}
  - `status` 'pending' | 'processing' | 'completed' | 'partial' | 'failed' | 'cancelled' | 'timeout'
  - `operation` string
  - `tag` string, nullable: Your X-Tag, if sent
  - `created_at` string, date-time
  - `completed_at` string, date-time, nullable
  - `output` object: Operation result (see each operation). While a Studio render is processing: `stage` (queued · transcribing · downloading · preparing · cleaning_voice · mixing_audio · rendering · finishing), `phase` (the engine's: download · prepare · voice · audio · encode · qa · upload, or null), `progress` (a percent, 0–100) and `progress_fraction` (0–1), `eta_seconds` (seconds left, never below 0) and `estimate_seconds`
    - `success` boolean
    - `messageId` string: WhatsApp message ID (WAMID)
  - `error` string, nullable
  - `usage` object
    - `credits_charged` number, nullable
    - `credits_reserved` number
    - `estimated_credits` number
    - `cost_source` 'provider_reported' | 'calculated' | 'estimated' | 'null', nullable
    - `provider_usage` object, nullable: Normalised consumption, e.g. { VIDEO_SECOND: 22.4 }
  - `balance` object
    - `available` number
    - `reserved` number

## Other responses

- `400`: Invalid input
- `402`: Insufficient credits / project budget
- `404`: Resource not found (or not yours)
- `429`: Rate limited
- `503`: Service temporarily paused

---

[API](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai.md) · [All operations](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/apihub/apis/apihub-one-api-for-chat-image-video-ai/revisions/a8caa42835ce?raw)