For use with AppMeasurement.js or s_code.js --a snippet to map the Adobe Marketing Cloud Visitor ID to itself with an alias name for Customer Attributes.

Map_Adobe_MCVID.js

/**
 * Supports Demandbase Customer Attributes integration
 * Map the MCVID to itself via the alias "demandbase"
 */
(function(){
  function map_mcvid(retry) {
    var mcvid = visitor.getMarketingCloudVisitorID();
    if (mcvid) {
        visitor.setCustomerIDs({ "demandbase": mcvid });
        //Optional - send to Conversion Variable: s.eVar# = mcvid;
    } else if (retry) {
        window.setTimeout(function() { map_mcvid(false) }, 1200);
    }
  }
  map_mcvid(true);
})();