The copies of the bill of lading are distributed as follows: - Part one (original) is placed with part one of the packing slip and the goods pulled. These items are given to the carrier to be delivered to the customer. - Part two is given to the carrier. This copy is to be retained by the carrier for their own company records. Part three is filed with part three of the packing slip. After the carrier picks up the goods, the shipping clerk initials the picking ticket and forwards it to the accounts receivable clerk in the accounting department for billing. Upon receiving part two of the packing slip, the customer service clerk uses the packing slip to pull the matching sales order filed earlier in the open sales order file. The customer service clerk enters data from the matched documents for updating the sales order in the sales order transaction file in the ERP system as being shipped. The ERP system automatically generates and sends an email to the customer that the shipment is on its way. The customer service clerk then files the matched documents by customer name and then by date in the closed sales order file