Are there packaging conditions to prevent manual handling?

Stick the label on a flat surface at its widest point. If this is not possible because of the shape of the

parcel because, for example, the box is too small, at least the PDF

part (this is the first barcode under the address) must be flat. When using straps over your parcel, ensure they do not overlap the barcode

. Also ensure that multiple packages are never tied together.
There must always be one single label on the shipment.

Tip:

Do not use round packaging, but triangular or rectangular. Check out this DHL page for more tips.