# IndexConfigurationType

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Enums](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/index.md)

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

Index configuration type enumeration. Defines the type of an index configuration.

- **Full name:** `MFiles.IndexConfigurationType`
- **Proto file:** [`mfiles/enums.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/enums.proto)

<a id="values"></a>

## Values

| Name | Number | Description |
|---|---|---|
| <a id="v-INDEX_CONFIGURATION_TYPE_UNKNOWN"></a>`INDEX_CONFIGURATION_TYPE_UNKNOWN` | 0 | Unknown. |
| <a id="v-INDEX_CONFIGURATION_TYPE_LEGACY"></a>`INDEX_CONFIGURATION_TYPE_LEGACY` | 1 | Legacy (non-shared) index configuration. Vault and external repositories have separate index configurations. |
| <a id="v-INDEX_CONFIGURATION_TYPE_SHARED"></a>`INDEX_CONFIGURATION_TYPE_SHARED` | 2 | Shared index configuration. External repositories don't have separate index configurations. The same index configuration is used between vault and external repositories. |
| <a id="v-INDEX_CONFIGURATION_TYPE_ANY"></a>`INDEX_CONFIGURATION_TYPE_ANY` | 3 | Any. Not a real index configuration type but it helps requesting transition to shared index configurations. |

<a id="used-in-fields"></a>

## Used in fields

- [`IndexName.configuration_type`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.IndexName/index.md#f-configuration_type): The index configuration type (e.g., Shared versus Legacy).