# Add recipient SMS campaign
You can add recipients to an existing SMS campaign.
PUT /sms-campaign/:id/
| Attributes | Type | Required | Description | 
|---|---|---|---|
| id | integer | yes | A unique identifier for the campaign which is given by User.com | 
| description | string | no | A description of the SMS campaign. | 
| eta | string | no | A datetime when a campaign should be sent. If not provided, the campaign will be sent right away. | 
| name | string | yes | A SMS campaign name. | 
| phone_number | string | yes | A phone number where SMS will be sent | 
| recipients | object | no | A list of user_ids. | 
| recipients_count | integer | no | A number of recipients. | 
| status | integer | no | A status of your campaign (1 - draft, 2 - active, 3 - finished, 4- archived). | 
| type | integer | no | A type of SMS campaign (1 - simple, 2 - automated). | 
# Request
- CURL
- JavaScript
- PHP
- Python
curl -X POST
  "https://<your_app_subdomain>.user.com/api/public/sms-campaign/:id/"
  -H 'Authorization: Token <your_64_char_api_key>'
  -H 'Cache-Control: no-cache'
  -H 'Content-Type: application/json'
  -d '{
    "name": "Sample SMS campaign",
    "phone_number": {
        "provider": "Phone number provider",
        "phone_number": "123123123",
        "name": "Custom name of your phone number"
    },
    "recipients": [5,6,7,8]
}'
# Response
{
  "id": 8,
  "name": "Sample SMS campaign",
  "description": "",
  "app": 1,
  "phone_number": {
      "id": 3,
      "app": 1,
      "provider": "Phone number provider",
      "country": "",
      "phone_number": "123123123",
      "name": "Custom name of your phone number",
      "description": "",
      "sms": false,
      "voice": false,
      "price": "0.00",
      "last_used_at": null,
      "created_at": "2018-02-19T13:01:41.083625Z",
      "updated_at": "2018-02-19T13:01:41.083655Z",
      "record_incoming_calls": false
  },
  "type": 1,
  "eta": null,
  "status": 1,
  "recipients": [
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
  ],
  "recipients_ids": "[1,2,3,4,5,6,7,8]",
  "recipients_count": 8,
  "started_at": null,
  "last_message_sent_at": null,
  "finished_at": null,
  "author": 1,
  "created_at": "2018-02-19T13:01:41.097096Z",
  "updated_at": "2018-02-19T13:01:41.097126Z"
}