An automated commodity customer delivery driven method/system to manage commodity sales by acquiring a chance of purchase of a selecting customer as well as another new customer for a relevant commodity by assuring availability of the inventory for both customers of the relevant commodity. The shop inventory for the selecting customer is acquired according to acceptance of a temporary reservation status for requesting acquisition of the inventory of the selected commodity and the inventory in the shop that was acquired for the selecting customer is returned to the number of inventories for selling to the other new customer, based upon a specified method of transferring the selected commodity to the selecting customer.