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

# Resume campaign

> Resume delivery of a previously paused outbound WhatsApp campaign

Resume an existing paused campaign. If the campaign's `scheduled_at` time is still in the future, it is re-registered into the Redis scheduler under status `scheduled`. If the scheduled time has already passed or was immediate, dispatch begins immediately and the status transitions to `sending`.

***

### Authentication

This endpoint requires Bearer token authentication.

```http theme={null}
Authorization: Bearer <token>
```

| Header          | Type     | Required | Description                                     | Format           |
| :-------------- | :------- | :------- | :---------------------------------------------- | :--------------- |
| `Authorization` | `string` | **Yes**  | Scoped organization API key or Bearer JWT token | `Bearer <token>` |

***

### Input parameters

<ParamField path="campaign_id" type="string" required>
  Unique UUID identifier of the paused campaign. Example: `e4a2e584-3672-4d69-b541-6e9f1a238491`.
</ParamField>

<ParamField header="Authorization" type="string" required>
  Bearer token for authentication. Format: `Bearer <token>`.
</ParamField>

***

### Response Fields

Returns the updated [CampaignResponse](/api-reference/campaigns/get-campaign#response-fields) object with status changed to `sending` or `scheduled`.

<ResponseField name="id" type="string">
  UUID of the resumed campaign.
</ResponseField>

<ResponseField name="status" type="string">
  Updated operational status (`sending` or `scheduled`).
</ResponseField>

<ResponseField name="total_contacts_count" type="number">
  Total contacts in cohort.
</ResponseField>

<ResponseField name="sent_count" type="number">
  Count of messages sent.
</ResponseField>

<ResponseField name="delivered_count" type="number">
  Count of messages delivered.
</ResponseField>

***

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "https://api.sayvy.ai/api/v1/campaigns/e4a2e584-3672-4d69-b541-6e9f1a238491/resume" \
    -H "Authorization: Bearer <token>"
  ```

  ```python Python theme={null}
  import requests

  url = "https://api.sayvy.ai/api/v1/campaigns/e4a2e584-3672-4d69-b541-6e9f1a238491/resume"

  headers = {
      "Authorization": "Bearer <token>"
  }

  response = requests.post(url, headers=headers)
  print(response.status_code)
  print(response.json())
  ```

  ```javascript JavaScript theme={null}
  const response = await fetch("https://api.sayvy.ai/api/v1/campaigns/e4a2e584-3672-4d69-b541-6e9f1a238491/resume", {
    method: "POST",
    headers: {
      "Authorization": "Bearer <token>"
    }
  });

  const data = await response.json();
  console.log(data);
  ```

  ```java Java theme={null}
  HttpRequest request = HttpRequest.newBuilder()
      .uri(URI.create("https://api.sayvy.ai/api/v1/campaigns/e4a2e584-3672-4d69-b541-6e9f1a238491/resume"))
      .header("Authorization", "Bearer <token>")
      .POST(HttpRequest.BodyPublishers.noBody())
      .build();

  HttpResponse<String> response =
      HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());
  System.out.println(response.body());
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={null}
  {
    "id": "e4a2e584-3672-4d69-b541-6e9f1a238491",
    "organization_id": "93f35dc2-5d46-4e58-a9ee-038c35d9bcf1",
    "name": "Q3 Lead Reactivation",
    "whatsapp_phone_number_id": "8f3b0e2a-71d3-4a5f-9e6b-123456789abc",
    "message_template_id": "3a4b5c6d-7e8f-9012-3456-789abcdef012",
    "audience_type": "tags",
    "audience_tags": [
      "high_intent",
      "q3_leads"
    ],
    "audience_contact_ids": null,
    "scheduled_at": "2026-09-15T14:00:00Z",
    "status": "sending",
    "total_contacts_count": 450,
    "sent_count": 210,
    "delivered_count": 204,
    "read_count": 150,
    "failed_count": 6,
    "created_at": "2026-09-07T10:30:00Z",
    "updated_at": "2026-09-07T14:25:00Z"
  }
  ```

  ```json 400 Bad Request theme={null}
  {
    "detail": "Cannot resume campaign in 'sending' state."
  }
  ```

  ```json 401 Unauthorized theme={null}
  {
    "detail": "Unauthorized"
  }
  ```

  ```json 404 Not Found theme={null}
  {
    "detail": "Campaign not found."
  }
  ```
</ResponseExample>

***

<div
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      <div style={{ fontSize: "13px", fontWeight: "700", color: "#F8FAFC" }}>Cancel campaign</div>

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        POST /api/v1/campaigns/\{campaign\_id}/cancel
      </div>
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