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

# Update a merchant identifier (MID) exemption

> Update a merchant identifier exemption.

PUT/authcontrols/exemptmids/\{token}

Update a merchant identifier exemption.

## URL path parameters

| Fields | Description |
| - | - |
| token string  Required | Unique identifier of the authorization control resource. **Allowable Values:**  Existing authorization control resource token |

## Request body

| Fields | Description |
| - | - |
| active boolean  Optional | Indicates whether the merchant identifier authorization control exception is active. **Allowable Values:**  `true`, `false` **Default value:** `false` |

## Sample request body

```json JSON lines wrap theme={null}
{
  "active": false
}
```


## Related topics

- [Merchant Identifier (MID) Exemptions Overview](https://www.marqeta.com/docs/core-api/authorization-controls/merchant-identifier-exemptions.md)
- [Authorization Controls Overview](https://www.marqeta.com/docs/core-api/authorization-controls.md)
- [List merchant identifier (MID) exemptions](https://www.marqeta.com/docs/core-api/authorization-controls/merchant-identifier-exemptions/list-merchant-identifier-mid-exemptions.md)
- [Retrieve a merchant identifier (MID) exemption](https://www.marqeta.com/docs/core-api/authorization-controls/merchant-identifier-exemptions/retrieve-merchant-identifier-mid-exemption.md)
- [Create a merchant identifier (MID) exemption](https://www.marqeta.com/docs/core-api/authorization-controls/merchant-identifier-exemptions/create-merchant-identifier-mid-exemption.md)