# IRPCExtensionAuthentications.RemoveExtensionAuthenticationSpecialCredentials

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Vault API](https://developer.m-files.com/APIs/gRPC-API/vault/index.md) > [Extension authentications](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCExtensionAuthentications/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCExtensionAuthentications/RemoveExtensionAuthenticationSpecialCredentials/

Badges: `Vault API / standard` `write` `session` `returns metadata structure version`

Removes vault-wide credentials for an external system. Used by vault administration tools.

- **Service:** [Extension authentications](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCExtensionAuthentications/index.md) `MFiles.IRPCExtensionAuthentications`
- **gRPC method:** `/MFiles.IRPCExtensionAuthentications/RemoveExtensionAuthenticationSpecialCredentials`
- **HTTP (mf-http-grpc):** `POST /grpc/v1/remove-extension-authentication-special-credentials`
- **Request:** [`RemoveExtensionAuthenticationSpecialCredentialsRequest`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCExtensionAuthentications/RemoveExtensionAuthenticationSpecialCredentials/index.md#request)
- **Response:** [`RemoveExtensionAuthenticationSpecialCredentialsResponse`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCExtensionAuthentications/RemoveExtensionAuthenticationSpecialCredentials/index.md#response)
- **Book and level:** Vault API, standard
- **Kind:** write
- **Session:** Required: the session ID from LogIn in the mfiles-session-id-bin metadata.
- **Idempotent:** no
- **Returns metadata structure version:** yes (in the mfiles-metadata-version-bin trailer)
- **Streaming:** none (unary)

<a id="remarks"></a>

## Remarks

- Requires full control of the vault; other users get "Access denied.".
- Succeeds also when nothing was stored.

<a id="request"></a>

## Request: RemoveExtensionAuthenticationSpecialCredentialsRequest

> Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

| Field | Type | Description |
|---|---|---|
| `eeasut` | [`ExtensionAuthenticationSpecialUserType`](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/MFiles.ExtensionAuthenticationSpecialUserType/index.md) | Which vault-wide account to remove. Values: `EXTENSION_AUTHENTICATION_SPECIAL_USER_TYPE_NORMAL` (0), `EXTENSION_AUTHENTICATION_SPECIAL_USER_TYPE_COMMON` (1), `EXTENSION_AUTHENTICATION_SPECIAL_USER_TYPE_BACKGROUND` (2), `EXTENSION_AUTHENTICATION_SPECIAL_USER_TYPE_PERMISSIONS` (3). |
| `target` | `string` | The `id` of the target. |

<a id="response"></a>

## Response: RemoveExtensionAuthenticationSpecialCredentialsResponse

No fields.