Sumber Jaya imports and sells fasteners, bolts and nuts to its customer in all over Indonesia. It is a privately owned company based in Surabaya, Indonesia. Founded in 1988, the company has been known for its good quality products and timely delivery for its customers. Currently, Sumber Jaya has more than sixty employees. Sumber Jaya gets its products from the manufacturers from Taiwan, China, and Indonesia. Sumber Jaya sells to both wholesale and retail customers. There is not any computerized system and a set of accounting system within the company. Everything is done manually by hand. For wholesale customers, Sumber Jaya receives its customer purchase order through phone, fax, or email. When the purchase order is received, it goes to sales department where the sales representative gives the prices for each order to the customer. Once the customer agrees to pay the offered price, the original purchase orders are being copied and sent to the warehouse personnel. The original customer purchase order remains in the sales department to prepare the invoice for the customers. There are three parts of the invoice. The copies of the invoice are distributed as follows: The first part (original) of the invoice will be sent to the customers by mail when Sumber Jaya has already received the payment. The second part of the invoice remains in sales department to be used to verify that the invoice is correct and it is sent to the customers by mail. The third part of the invoice is sent to the account receivable department to be recorded and filed. The warehouse personnel use the copy of purchase order to prepare the shipment to fulfill the purchase order. When the goods are ready to be shipped, the warehouse personnel prepare and initial the packing slip. There are three parts of the packing slip. The copies of the packing slip are distributed as follows: The first part (original) packing slip is sent to the account receivable department and will be sent to the customers along with the invoice by mail when the payment is received. The second part of the packing slip is sent to the shipping department to be used to verify that those are the correct goods and ready to be shipped, and send it along with the goods. The third part of the packing slip is sent to the account receivable department to be filed together along with the third part of the invoice. When the goods are correct and ready to be shipped, the shipping department personnel will initial the packing slip. Sumber jaya only delivers to its local market by its own truck. However, if the customers are outside Surabaya, the shipment will be handled by S&H Company. When the goods are shipped by the S&H Company, Sumber Jaya