National standard: FBA requires the outer box to be affixed with the national standard. The size of the national standard is a square with a side length of 4cm. Generally, two national labels are affixed to the upper right corner of the narrow side of each box of goods. Everyone should pay attention to this.

FBAlabel: FBAlabel is the outer box mark used to confirm the goods when the Amazon warehouse receives the goods. It consists of FBA information and code128 barcode. FBAlabel is generated within the Amazon system. Generally, there are 1, 4 or 6 FBAlabels in an A4-sized PDF.