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# NSFileProviderVolumeUnsupportedReason

Constants that describe why an external volume might not be eligible for storing a domain.

```
struct NSFileProviderVolumeUnsupportedReason
```

## Topics

### Reasons

[`unknown`](/documentation/FileProvider/NSFileProviderVolumeUnsupportedReason/unknown)

[`nonEncrypted`](/documentation/FileProvider/NSFileProviderVolumeUnsupportedReason/nonEncrypted)

[`readOnly`](/documentation/FileProvider/NSFileProviderVolumeUnsupportedReason/readOnly)

[`network`](/documentation/FileProvider/NSFileProviderVolumeUnsupportedReason/network)

[`quarantined`](/documentation/FileProvider/NSFileProviderVolumeUnsupportedReason/quarantined)


---

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