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# Change contact segments

> Adds contacts to segments and removes them from others, like the Change Segments batch action. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/mautic/change_contact_segments

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Adds contacts to segments and removes them from others, like the Change Segments batch action.

Mautic API: https://cotlet.dev/docs/api/mautic.md

`PATCH https://cotlet.dev/api/v1/mautic/contact-segments`

Access: write.

Applies the Change Segments batch action to the contacts you list: they join the segments in add and leave the ones in remove. Only static segments take hand-picked members, because a dynamic segment is decided by its filters. It reaches nobody by itself, and one call with add and remove swapped undoes it, so it does not wait for your OK; a campaign that starts from the segment may email the new members.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `contact_ids` | array | yes | Contact IDs from list_contacts. |
| `add` | array | no | Segment aliases to add the contacts to. |
| `remove` | array | no | Segment aliases to remove the contacts from. |

## Request

**cURL**

```bash
curl -X PATCH https://cotlet.dev/api/v1/mautic/contact-segments \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"contact_ids":[1042,1388,1410],"add":["newsletter"]}'
```

**Python**

```python
result = client.call("mautic", "change_contact_segments", {"contact_ids":[1042,1388,1410],"add":["newsletter"]})
```

**Node.js**

```js
const result = await cotlet.call('mautic', 'change_contact_segments', {"contact_ids":[1042,1388,1410],"add":["newsletter"]});
```

**CLI**

```bash
cotlet call mautic change_contact_segments --data '{"contact_ids":[1042,1388,1410],"add":["newsletter"]}'
```

## Example response

```json
{
  "updated": 3,
  "added": [
    "newsletter"
  ],
  "removed": []
}
```

Previous: [Merge contacts](https://cotlet.dev/docs/api/mautic/merge_contacts.md)
Next: [Set Do Not Contact](https://cotlet.dev/docs/api/mautic/set_do_not_contact.md)

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