NCQA considers it to be delegation if the organization uses another organization, including a mail service organization, to perform any function not listed in the “Vendor” section of Appendix 3.
NCQA considers it to be a vendor relationship if the organization uses another organization (e.g., a mail service organization) to perform functions evaluated by the elements or element components listed in the "Vendor" section of Appendix 3.
MBHO 2021