# Undo a change an ad rule made

Undoes a change an ad rule made.

```http
POST https://api.pozy.ai/v1/ads/rules/activity/{activityId}/undo
```

- Area: Ads / Ad Rules
- Auth: Authorization: Bearer pz_live_...

## Path parameters

- `activityId` (string, required)

## Example request

```bash
curl -X POST "https://api.pozy.ai/v1/ads/rules/activity/6e7c596095855942dc919468/undo" \
  -H "Authorization: Bearer $POZY_API_KEY"
```

```ts
const res = await fetch("https://api.pozy.ai/v1/ads/rules/activity/6e7c596095855942dc919468/undo", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.POZY_API_KEY}` },
});
const data = await res.json();
if (!res.ok) throw new Error(data?.error ?? `Request failed with status ${res.status}`);
console.log(data);
```

```python
import os
import requests

resp = requests.post(
    "https://api.pozy.ai/v1/ads/rules/activity/6e7c596095855942dc919468/undo",
    headers={"Authorization": f"Bearer {os.environ['POZY_API_KEY']}"},
    timeout=30,
)
resp.raise_for_status()
print(resp.json())
```

## Response 200

- `undo`, object, required
  - `id`, string, required
  - `status`, string, required: One of `applied`, `skipped`, `unknown`
  - `reason`, string, required: Can be null

```json
{
  "undo": {
    "id": "6bfebd43ddc270f6d2c56fc5",
    "status": "applied",
    "reason": "string"
  }
}
```