The company Orca (Thailand) Ltd. business is producing and distributing stationery and office supplies. From me to work in a cooperative education program in the company Orca (Thailand) Ltd. I was assigned to duty in the accounting department warehouse. I have studied the work on sorting and separation of paper invoices, orders and invoices are in Bangkok or other provinces, and open orders in the sales of department stores. WINSPEED 10 use accounting software to work to make the system easy to use or import data. I have prepared a report on "Inventory accounting system" for the couriers and the relationship of documents to different departments. In the process of accounting for inventory from. How to Order The process of getting Storage Products And to process the payment. The details of each step can be studied in this report