This file is an Amazon Seller University guide titled “Fulfilment by Amazon: Shipment Label Requirements.” It explains how sellers should create, print, and attach FBA shipment labels when sending inventory to Amazon fulfilment centers. The guide focuses on the FBA shipment label, also called a carton label, shipment box label, carton ID, or box ID. It makes clear that each box shipped to Amazon must have its own unique FBA box ID label, because the barcode identifies both the shipment and the contents of that specific carton. This helps Amazon receive inventory accurately and efficiently. The file also warns that incorrect or missing labels can lead to receiving delays, errors, denied reimbursement claims, and even restrictions on shipment creation abilities.

The guide distinguishes FBA shipment labels from other labels sellers may use, such as carrier labels and pallet labels. Carrier labels contain shipping and tracking information, while pallet labels help Amazon verify pallet arrival. However, neither of these replaces the required FBA carton label. The document emphasizes that applying only a carrier or pallet label is not sufficient.

A major part of the file provides practical labeling rules. Sellers should print the full set of labels, reprint labels if box counts or contents change, and attach each label to the correct box. Labels should be placed flat on the carton, away from edges, seams, and corners, and must remain uncovered so the barcode can be scanned. The guide advises sellers not to tape over labels, place them in plastic pouches, reuse labels, photocopy labels, or apply labels to the wrong carton. It also recommends removing old shipment labels when reusing boxes.

The file also includes common barcode scannability problems, such as smeared ink, faded print, labels printed too close to the edge, labels placed over seams or corners, covered labels, labels that are too small, or barcodes printed on unsuitable materials. To avoid these problems, Amazon recommends thermal transfer printers with at least 300 DPI resolution, although laser printers are also mentioned. The supported minimum label size is 3 1/3 x 4 inches, with 4 x 6 inches recommended for thermal printing.

The final section is aimed at sellers or developers creating labels through the Selling Partner API. It lists required label elements such as seller name, ship-from address, ship-to fulfilment center address, unique FBA shipment barcode, internal-use-only section, SKU/quantity details, and media or non-media designation. It also provides barcode, font, and print specifications, including Code 128A barcode format, white permanent adhesive labels, and recommended fonts that clearly distinguish similar characters.