contentGroupLink (editorial-based)

Colour	Meaning
	Mandatory for ingest, optional or not used for ION
	Mandatory for ION, optional for ingest
	Mandatory for both ingest and ION
	Optional for ingest and optional or not used for ION

Elements		Fields/attributes	Type	Required	Sample data	Description	ION	MDS
`cmsData`
`cmsData`	`contentGroupLink`		ContentGroupLinkType	Optional		This element defines the relationship between a content group and referenced resources.	Not used

Elements		Fields/attributes			Type	Required	Description	ION
`cmsData`
	`contentGroupLink`
		`contentGroupRefSet`			ContentGroupRefSetType	Optional	Weak reference to an external content group (other than a series or season). The referenced content group does not necessarily exist.	Not used
			`contentGroupRef`
				`providerId`			Unique identification of the content provider
				`providerResourceId`			Unique resource identification of a specific content provider

Elements		Fields/attributes		Type	Required	Description	ION
`cmsData`
	`contentGroupLink`
		`resourceRef`		ResourceReferenceType	Optional	Reference to linked editorial content, editorial channel, or content group.	Not used
			`type`			The linked resource type. One of: `editorialContent` `editorialChannel` `contentGroup`
			`providerId`			Unique identification of the content provider
			`providerResourceId`			Unique resource identification of a specific content provider