# Scheduled change not allowed for cardless trial subscription before the payment method is added

Scheduled changes aren't allowed for cardless trial subscriptions before a payment method is added.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "subscription_scheduled_change_not_allowed_for_cardless_trial",
    "detail": "Scheduled changes aren't allowed for cardless trial subscriptions before a payment method is added.",
    "documentation_url": "https://developer.paddle.com/errors/subscriptions/subscription_scheduled_change_not_allowed_for_cardless_trial"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 400 |
| Error code | `subscription_scheduled_change_not_allowed_for_cardless_trial` |
| Error message | Scheduled changes aren't allowed for cardless trial subscriptions before a payment method is added. |

## Common causes

- You're trying to schedule a change for a cardless trial subscription before the payment method has been added, which isn't supported.

## Common solutions

- Add a payment method to the subscription, then retry the scheduled change request.
- If you're trying to cancel the subscription, retry the request with the `effective_from: immediately` option.