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

# POST /v1/agents/{agent_id}/workflow/versions/{number}/rollback

> Make an earlier workflow version live again, published under a new number.

Publishes an earlier version again, as a new version with the next number — history is never rewritten. The draft is left as it is.

<Note>Needs the `agents:write` scope.</Note>

## Path parameters

| Field | Type | Required | Notes |
| :- | :- | :- | :- |
| `agent_id` | integer | Yes | The agent's id. |
| `number` | integer | Yes | The version to go back to. |

## Request

<CodeGroup>
  ```bash cURL theme={null}
  curl -X POST "https://api.fireflo.au/v1/agents/12/workflow/versions/2/rollback" \
    -H "Authorization: Bearer $OMNI_API_KEY"
  ```

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

  import requests

  response = requests.post(
      "https://api.fireflo.au/v1/agents/12/workflow/versions/2/rollback",
      headers={"Authorization": f"Bearer {os.environ['OMNI_API_KEY']}"},
  )
  print(response.status_code, response.json())
  ```

  ```javascript Node theme={null}
  const response = await fetch("https://api.fireflo.au/v1/agents/12/workflow/versions/2/rollback", {
    method: "POST",
    headers: { Authorization: `Bearer ${process.env.OMNI_API_KEY}` },
  });
  console.log(response.status, await response.json());
  ```
</CodeGroup>

## Response

`201 Created` — the new version, now live, with the note "Rolled back to version 2".

```json theme={null}
{
  "number": 5,
  "note": "Rolled back to version 2",
  "by": null,
  "at": "2026-10-06T10:31:40+05:30",
  "blocks": 6,
  "ai_blocks": 1,
  "live": true,
  "running": 0
}
```

## Errors

Every refusal is `{"error": {"code", "message", "field"}}`; `field` is there when one input is at fault.

| Status | Error code | When |
| :- | :- | :- |
| 404 | `not_found` | No agent of this account's has that id. |
| 409 | `invalid_state` | There is no such version, it is already live, or something in it is broken for this agent now — an action switched off, a person who left. Restore it as the draft on the panel and fix it. |
| 404 | `module_off` | The account doesn't have AI agents on: they aren't in its plan, or are switched off for it. |
| 403 | `scope_missing` | The key doesn't have the `agents:write` scope. |

Any request can also be refused for its key, its account or its rate (`key_required`, `invalid_key`, `account_suspended`, `plan_excludes_api`, `address_not_allowed`, `rate_limited`); see [the overview](/api-reference/overview).


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