Why is the inventory and related expenses of traditional orders high?

The order link is lengthy and the price is chaotic. The traditional order link is long, from commodity confirmation, inquiry, order placing, payment, delivery to receipt confirmation, the cumulative probability of errors in each link increases, which leads to the cumulative increase of inventory and losses due to order errors. Moreover, due to the high cost, long cycle and high ordering cost of procurement and inventory. Moreover, members of different regions and levels form hundreds of prices. Traditional manual management leads to price confusion, and the phenomenon of wrong price and disorderly price is serious.