The names of several schema field groups have changed. See the document on field group name updates for more information.
Campaign Marketing Details is a standard schema field group for the XDM ExperienceEvent class, used to describe marketing campaign information such as campaign group, name, and tracking code.
||Marketing||An object that describes marketing campaign information such as campaign group, name, and tracking code.|
For more details on the field group, refer to the public XDM repository: