Property Value

Type: String
The attribute name.

This property is read-only. This property will be set if the metadata attribute describes an attribute of another attribute. If this property contains a value, the attribute is for internal use only and won’t appear in the customization user interface (UI) in the web application.

If you retrieve the metadata for the lead entity, there are three attributes that extend the accountid attribute. They are accountidname, accountiddsc and accountidyominame. For each of these three attributes, the value of the AttributeOf property is "accountid".