According to the preparation rules in the letter of credit, words that conflict with the terms of the letter of credit, such as description of goods and quantity, are not allowed on the documents. If there are no labels or free goods in the description of the goods in the letter of credit, these labels cannot be shipped with the goods in the letter of credit.

If the goods are to be shipped together, the bill of lading must be issued for the tag and the bill of lading for the goods under the letter of credit, so that this problem can be solved.