To reduce the entry time of an application slip by a customer and to reduce the processing time of delivery slip output and the maintenance of customer data in a reception job.

Product information and customer information are directly inputted by a pen input means 1 in a handy terminal 4 and transmitted to a host computer 8 as handy terminal input data 6. A delivery slip 9 is directly and automatically prepared based on the handy terminal input data 6 by a delivery slip preparation means 2 inside the host computer 8. Similarly, a customer master 7 is directly and automatically maintained based on the handy terminal input data 6 by a customer information maintenance means 3.