Is the warehouse keeper hard?

The warehouse staff is very tired. First of all, he is tired in dealing with things, because he has to record the information of every product he sends and receives. As long as there is a purchase or shipment, it needs to go through the hands of the warehouse keeper, which ensures the correctness of the data and the product will not be lost. Secondly, he is tired, because he needs to face the receiving and dispatching personnel with relatively low educational level, with poor understanding ability and relatively tired communication.