> ## Documentation Index
> Fetch the complete documentation index at: https://docs.b3os.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Slack: New Reaction Added

Triggers when a reaction (emoji) is added to a message in Slack. Useful for tracking engagement, monitoring feedback, or triggering workflows based on specific emoji reactions.

Trigger Communications

Triggers when a reaction (emoji) is added to a message in Slack. Useful for tracking engagement, monitoring feedback, or triggering workflows based on specific emoji reactions.

## At a Glance

| Field | Value |
| --- | --- |
| Trigger ID | `slack-new-reaction-added` |
| Category | Communications |
| Tags | `slack`, `communication`, `reaction`, `emoji`, `engagement` |

## Trigger Configuration

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `conversations` | `array` | No | Select one or more channels to monitor for reactions. Leave empty to monitor all channels. |

## Trigger Result

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `triggeredAt` | `string` | Yes | Timestamp when the event was received \(UTC, RFC3339 format\) |
| `eventType` | `string` | No | Slack event type \(e.g. reaction_added\) |
| `reaction` | `string` | No | Name of the emoji reaction that was added |
| `user` | `object` | No | User who added the reaction |
| `item` | `object` | No | Item \(message\) that received the reaction |
| `event_ts` | `string` | No | Timestamp of the reaction event |

## Workflow Root Example

```json
{
  "nodes": {
    "root": {
      "type": "slack-new-reaction-added",
      "payload": {
        "conversations": []
      },
      "children": [
        "log_event"
      ]
    },
    "log_event": {
      "type": "log",
      "payload": {
        "message": "Triggered at {{$trigger.triggeredAt}}"
      },
      "children": []
    }
  }
}
```

**Reference trigger output**

Downstream nodes can use `{{$trigger.triggeredAt}}` and any result fields listed above. Event triggers usually expose the raw source payload under a field such as `event`, `body`, `trade`, or `raw`.