APIs under the
/beta version in Microsoft Graph are subject to change. Use of these APIs in production applications is not supported.
The System facet indicates that the object is managed by the system for its own operation. Most apps should ignore items that have a System facet.
Note: While this facet is empty today, in future API revisions the facet may be populated with additional properties.
None. This facet is a null or not-null value and contains no properties.