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

# Update Campaign Step

> Modify an existing step's content or timing

## Request

### Path Parameters

<ParamField path="id" type="string" required>
  The campaign's unique ID (UUID)
</ParamField>

<ParamField path="step_id" type="string" required>
  The step's unique ID (UUID)
</ParamField>

### Headers

```
Authorization: Bearer wbk_your_api_key_here
Content-Type: application/json
```

<Note>
  Requires an API key with the `campaigns:write` permission. All body fields are optional — include only fields you want to change.
</Note>

### Body Parameters

<ParamField body="subject" type="string">
  Email subject line
</ParamField>

<ParamField body="body" type="string">
  Email body
</ParamField>

<ParamField body="delay_days" type="integer">
  Days to wait after previous step
</ParamField>

<ParamField body="delay_hours" type="integer">
  Additional hours (0–23)
</ParamField>

<ParamField body="send_condition" type="string">
  `always`, `if_no_reply`, `if_no_open`, `if_opened`, or `if_clicked`
</ParamField>

<Warning>
  Updating a step only affects **future** sends. Contacts who have already received this step under the previous configuration are unaffected.
</Warning>

## Response

<ResponseField name="data" type="object">
  <Expandable title="properties">
    <ResponseField name="step" type="object">
      Updated step object
    </ResponseField>
  </Expandable>
</ResponseField>

<CodeGroup>
  ```bash cURL theme={null}
  curl -X PATCH https://data.leadlex.com/functions/v1/api-gateway/v1/campaigns/cmp_abc123/steps/step_2 \
    -H "Authorization: Bearer wbk_your_api_key_here" \
    -H "Content-Type: application/json" \
    -d '{"delay_days": 5}'
  ```

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

  API_KEY = "wbk_your_api_key_here"
  BASE_URL = "https://data.leadlex.com/functions/v1/api-gateway"
  CAMPAIGN_ID = "cmp_abc123"
  STEP_ID = "step_2"

  response = requests.patch(
      f"{BASE_URL}/v1/campaigns/{CAMPAIGN_ID}/steps/{STEP_ID}",
      headers={
          "Authorization": f"Bearer {API_KEY}",
          "Content-Type": "application/json",
      },
      json={"delay_days": 5},
  )
  ```

  ```javascript JavaScript theme={null}
  const CAMPAIGN_ID = 'cmp_abc123';
  const STEP_ID = 'step_2';

  await fetch(
    `https://data.leadlex.com/functions/v1/api-gateway/v1/campaigns/${CAMPAIGN_ID}/steps/${STEP_ID}`,
    {
      method: 'PATCH',
      headers: {
        'Authorization': 'Bearer wbk_your_api_key_here',
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ delay_days: 5 }),
    }
  );
  ```
</CodeGroup>

### Example Response

```json theme={null}
{
  "data": {
    "step": {
      "id": "step_2",
      "index": 1,
      "subject": "Re: {{company_name}}",
      "body": "Just circling back on my note from last week...",
      "delay_days": 5,
      "delay_hours": 0,
      "send_condition": "if_no_reply"
    }
  }
}
```

## Errors

| Status | Code                       | Description                          |
| ------ | -------------------------- | ------------------------------------ |
| 400    | `invalid_send_condition`   | Unrecognized `send_condition`        |
| 401    | `invalid_key`              | Invalid or expired API key           |
| 403    | `insufficient_permissions` | Missing `campaigns:write` permission |
| 404    | `campaign_not_found`       | No campaign with this ID             |
| 404    | `step_not_found`           | No step with this ID in the campaign |
| 429    | `rate_limited`             | Rate limit exceeded                  |