Bundesliga side Heidenheim edged out Hearts at a raucous Tynecastle to maintain their 100% record in the Conference League and end that of their hosts.
The Edinburgh side sit second bottom of the Scottish Premiership, but dictated play against their German visitors in the first half without finding the way to goal.
After suffering nearly an hour of pressure, Heidenheim found the goal that overcame Neil Critchley’s side when Sirlord Conteh cushioned a header beyond Craig Gordon after a blistering attack.
The hunt for the equaliser was timid, and in a rinse and repeat move for the visitors, Jan Schoppner glanced in to silence the home fans.