---
title: AssetCredentialACMEReferenceObject
framework: devicemanagement
role: symbol
role_heading: Object
path: devicemanagement/assetcredentialacmereferenceobject
---

# AssetCredentialACMEReferenceObject

The external reference. Ensure that the asset data:

## Declaration

```data
object AssetCredentialACMEReferenceObject
```

## Properties

ContentType: The media type that describes the data. If present, the system checks the actual media type of the downloaded data, and an error occurs if the values don’t match. DataURL: The URL to retrieve data, which needs to start with https://. Hash-SHA-256: A SHA-256 hash of the data stored at the DataURL. Don’t set this value if Size is 0 as the client ignores it. However, if present, the system checks the actual hash of the downloaded data, and an error occurs if the values don’t match. Size: The size of the data. Set the size to 0 if there’s no expectation of a response body. If present, the system checks the actual size of the downloaded data, and an error occurs if the values don’t match.

## Discussion

Discussion Is a JSON document that represents the com.apple.credential.acme credential type Uses a media type of application/json, and if it includes a ContentType sub-key, that sub-key media type is also application/json

## See Also

### Objects

- [AssetCredentialACMEAuthenticationObject](devicemanagement/assetcredentialacmeauthenticationobject.md)