Before your merchandise is send to amazon Fulfillment centers you will need to verify shipping, packaging and label every product and every box correctly, sometimes can be done by the supplier or manufacturer, If items are incorrectly labeled by your supplier, and Amazon has to replace these labels, then additional fees may be added for this service; however, if you are unsure whether your supplier will properly label your items, Spainbox can label your inventory, rather than having your supplier attempt to label your inventory.