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

# Update Sequence Step

> Update a sequence step. Campaign must be in draft or paused status.

## Path Parameters

<ParamField path="campaign_id" type="string" required>
  The unique identifier of the campaign.
</ParamField>

<ParamField path="sequence_id" type="string" required>
  The unique identifier of the sequence step.
</ParamField>

## Body Parameters

All fields are optional. Only include fields you want to update.

<ParamField body="subject" type="string">
  Email subject line. Supports template variables and spin syntax.
</ParamField>

<ParamField body="body" type="string">
  Email body content. Supports template variables and spin syntax.
</ParamField>

<ParamField body="name" type="string">
  Step name.
</ParamField>

<ParamField body="delayDays" type="integer">
  Days to wait after the previous step.
</ParamField>

<ParamField body="delayHours" type="integer">
  Additional hours to wait.
</ParamField>

<ParamField body="sendOnlyIfNoReply" type="boolean">
  Skip this step if lead has already replied.
</ParamField>

## Response

Returns the updated sequence step object.

<RequestExample>
  ```bash cURL theme={null}
  curl -X PATCH "https://api.foxreach.io/api/v1/campaigns/cmp_abc123/sequences/seq_002" \
    -H "X-API-Key: otr_your_key" \
    -H "Content-Type: application/json" \
    -d '{
      "delayDays": 5,
      "subject": "Following up, {{firstName}}"
    }'
  ```

  ```python Python SDK theme={null}
  from foxreach import FoxReach
  from foxreach.types import SequenceUpdate

  client = FoxReach(api_key="otr_your_key")
  sequence = client.campaigns.sequences.update(
      "cmp_xyz789",
      "seq_step1",
      SequenceUpdate(
          delay_days=5,
          body="Updated body",
      ),
  )
  ```

  ```typescript TypeScript SDK theme={null}
  import { FoxReach } from "foxreach";

  const client = new FoxReach({ apiKey: "otr_your_key" });
  const sequence = await client.campaigns.sequences.update("cmp_xyz789", "seq_step1", {
    delayDays: 5,
    body: "Updated body",
  });
  ```
</RequestExample>

<ResponseExample>
  ```json theme={null}
  {
    "data": {
      "id": "seq_002",
      "campaignId": "cmp_abc123",
      "stepNumber": 2,
      "name": "Follow-up",
      "subject": "Following up, {{firstName}}",
      "body": "Hi {{firstName}},\n\nJust wanted to follow up...",
      "delayDays": 5,
      "delayHours": 0,
      "sendOnlyIfNoReply": true,
      "createdAt": "2025-01-10T08:05:00",
      "updatedAt": "2025-01-12T14:30:00"
    }
  }
  ```
</ResponseExample>

## Errors

| Status | Description                            |
| ------ | -------------------------------------- |
| `400`  | Campaign is active — pause it first    |
| `400`  | Invalid spin syntax in subject or body |
| `404`  | Sequence step not found                |
| `404`  | Campaign not found                     |

## Rate Limit

* **100 requests per minute, per API key.** Fixed 60-second window.
* Every response includes `X-RateLimit-Limit`, `X-RateLimit-Remaining`, and `X-RateLimit-Reset` (unix epoch seconds).
* A `429` response includes a `Retry-After` header (seconds until the bucket resets).

For client-side patterns (`Retry-After`, exponential backoff, monitoring `X-RateLimit-Remaining`), see [Rate Limiting](/rate-limiting).