1. Carefully review the questions and preview the required documents. In the meantime, the most important thing is to clarify the main contents to be filled in the blank space of the target document.

Read the known conditions carefully, such as letter of credit, commercial invoice, contract agreement, etc. And extract the key and effective basic contents needed to fill in the documents, such as the name of the importer and exporter, the mode of trade, the contract amount, the description of the goods, the port of shipment and the port of destination. These will be used when filling out the documents.

Fill in the blank space of the document according to the information obtained from the known conditions.

4. According to the content of the known situation, accurately and strictly review the filling of documents, and carefully review whether the contents recorded between documents are consistent and take care of each other. Accurate and prudent audit is an important link to ensure the consistency of documents and documents, and it is indispensable in the practice process, and it is also a point that we need to pay special attention to in our future work.