# Invalid client-side token

The client-side token used for your request isn't valid.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "invalid_client_token",
    "detail": "Invalid, revoked or expired client-side token.",
    "documentation_url": "https://developer.paddle.com/errors/shared/invalid_client_token"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 403 |
| Error code | `invalid_client_token` |
| Error message | Invalid, revoked or expired client-side token. |

## Common causes

- The client-side token you used isn't correct.
- If the client-side token worked previously, it may have been revoked.
- The client-side token you specified is for another environment. For example, you're trying to work with sandbox using a live client-side token.

## Common solutions

- Check that the client-side token exists in your Paddle Dashboard.
- Create a new client-side token, or copy the existing client-side token again from your Paddle Dashboard.
- Check that you're using the correct client-side token for the environment.