Customs documents refer to documents used for customs declaration and clearance procedures in international trade. Accurate and complete completion of customs documents is very important for the smooth customs clearance of goods. These documents include various details of the goods to be transported, such as the nature, quantity, value, origin, purpose and mode of transportation of the goods. It also helps ensure compliance and avoid potential fines or delays.                                                                                           The common customs documents are as follows:1.Commercial Invoice: Describes the detailed information of the goods sold, including the description, quantity, price, total value, etc. of the goods.2.Packing List: Shows the details of the packing of goods, including the name, quantity, weight, volume and other information of the goods in each package or box.3.Shipping document (Bill of Lading, Waybill): It is the transportation contract of the goods, detailing the transportation arrangements of the good