Use a handling label only when the parcel contents and packaging support the instruction, such as keeping a container upright or identifying a fragile item. Check the carrier's current rules before adding a temperature-sensitive or restricted-goods label.

Place the instruction where a handler can see it, and make sure it does not cover addresses, required product labels, or safety information. Tell the carrier about contents when its rules require disclosure; a sticker is not a substitute for that conversation.

Choose cushioning, closures, and an outer package that can withstand ordinary handling even if a label is missed. Keep a record of the parcel's condition at handover, but do not tell buyers that a handling mark guarantees the carrier will follow it. Use labels that match the exact contents, not a generic parcel template.