---
title: "POST /api/campaigns/{id}/preview"
method: POST
path: "/api/campaigns/{id}/preview"
tags: ["campaigns"]
---

# POST /api/campaigns/{id}/preview

`POST /api/campaigns/{id}/preview`

## Request

- Base URL: `https://app.heykairon.com` (the document declares no server; this is the origin it was published from)
- URL: `https://app.heykairon.com/api/campaigns/{id}/preview`
- Auth: API key in header `x-api-key`

## Path parameters

- `id` string, required

## Request body

- CampaignPreviewDto
  - `leadIds` string[], required
  - `nodeType` 'send_invite' | 'send_message' | 'send_inmail' | 'comment_on_post', required
  - `config` object, required

## Response `200`

## Changes

- **2026-10-19** `4788afd829a0`: 1 info
  - the `leadIds/items/` request property's minLength was decreased from `1` to `0`

[Operation history](https://skmtc.dev/heykairon/apis/kairon-api/changes/api/campaigns/:id/preview/post.md)

---

[API](https://skmtc.dev/heykairon/apis/kairon-api.md) · [All operations](https://skmtc.dev/heykairon/apis/kairon-api/llms.txt) · [OpenAPI document](https://skmtc.dev/heykairon/apis/kairon-api/revisions/35de550d5938?raw)