Contact lists facet

In Sitecore 8.x, contact lists are associated with a contact through a tag on the contact. The name of the tag is ContactLists.

The following is an example of the ContactLists tag on the contact:

"Tags" : {
    "Entries" : {
        "ContactLists" : {
            "Values" : {
                "0" : {
                    "Value" : "{25B343A3-B3DF-4626-9F05-A3923C289FCD}",
                    "DateTime" : ISODate("1917-01-02T12:`00:00`.000Z")
                },
                "1" : {
                    "Value" : "{06822E3E-3BB2-495D-8149-388CE8155D57}",
                    "DateTime" : ISODate("1917-01-02T12:`10:00`.000Z")
                }
            }
        }
    }
}

The ContactLists tag has a property Values. The Values property is a dictionary. However, it is not a standard dictionary. Ordinarily the key in a dictionary is meaningful. For example, in a dictionary of email addresses, the key might describe the kind of email address.

In the case of tags, the key indicates the position of the tag value in the dictionary. The key value has no meaning.

The value in the dictionary is the only thing with any meaning. But even the value object requires an explanation. The value, itself, is an object with properties that must be mapped.

In Sitecore 9, list membership is represented using list subscriptions. The list subscriptions for a contact are stored in a contact facet.

The contact facet has a single property. This property is used to store the contact’s subscriptions.