Dobrý den, zakoupili jsme u Vás tuto mobilní registrační pokladnu, ale bohužel se nám žádným způsobem nedaří zadat záporné položky. Konkrétně se nám jedná o případ, kdy prodáme 20ks obědů a později jich chce zákazník např. 5ks vrátit a my mu za ně vrátíme v hotovosti částku. V návodu popisují pouze případ pro zrušení celé účtenky, případně zadání slevy. Chtěl bych se zeptat, jak je možné zadat mínusovou částku? Bez této funkce je pro nás tato pokladna nepoužitelná. Děkuji za pomoc a přeji pěkný den.
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