[-] MO: backoffice is tracking visits!!

none of backoffice traffic should be taken into account, all the stats are being broken: visits, bounce rate, time on site....
besides, in backoffice it is using ecommerce.js and ecommerce.js and analytics.js should never be used in the same proprerty:

"Important: The Enhanced Ecommerce plug-in should not be used alongside the Ecommerce (ecommerce.js) plug-in for the same property." (https://developers.google.com/analytics/devguides/collection/analyticsjs/enhanced-ecommerce)