Historically in the 1950s - 2010
In the US there is a rich history involving the use of the idea, term, and title "Goodwill Ambassador" starting around 1927 when the term was being applied by newspaper reporters as opposed to "ambassador of good will" which was used as early as 1821.
DOT CODE: 293.357-018 - TITLE(s): GOODWILL AMBASSADOR
(business service) alternate titles: welcome-wagon host/hostess
Promotes goodwill and solicits trade for local business firms who are members of parent organization: Develops list of prospective clients from such sources as newspaper items, utility companies' records, and local merchants. Visits homes of new residents, prospective parents, recently married couples, engaged persons, and other prospects to explain and sell services available from local merchants. Usually presents token gifts or gift certificates to induce clients to use local services or purchase local merchandise. Prepares reports of services rendered and visits made for parent organization and member firms. May solicit new organization membership. May explain community services available. May organize clubs and plan parties for new residents.