Print the shipping labels using a label printers or on plain white A4 paper and then tape them to the top of the package. Also remove any old shipping labels from the packages.
Print the shipping labels using a label printers on on self-adhesive labels or using a regular printer on plain white A4 paper and then tape them to the top of the package. Make sure that the label is completely visible on one side and does not cover any seams. Also remove any old shipping labels from the packages.