---
title: "Action broadcast__subscribed"
description: "Checks whether the current user is subscribed to a broadcast topic."
---

# Action `broadcast__subscribed`

> **System ID:** `action_broadcast__subscribed`

## Description

Checks whether the current user has a subscription to the specified broadcast topic. Useful for scenario branching (subscribed / not subscribed). Also available as alias `action_subscription__check`.

## Events (scenario branches)

| Event | When it occurs |
|-------|----------------|
| **success** | User is subscribed to the topic |
| **error** | Not subscribed, topic missing, module unavailable, or check failed |

## Parameters

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| `topic_id` | string | no | `null` | Topic identifier to check |

## Configuration example

```json
{
  "topic_id": "newsletter"
}
```

## Related docs

- [Actions reference](/en/actionjail/reference/actions-reference.md)