How to properly sign your delivery note in case of a problem?

It is imperative to note the terms “refused”, “broken”, “defective” or “non-compliant” in the signature; no sentences should be written, only words! Carriers do not require any justification.

WARNING: Some carriers require you to write "packaging intact," but this is completely invalid and will only be used to facilitate unloading. Even if the packaging is intact, it's possible it may have been damaged during transport, potentially breaking the contents.

The carrier's sole purpose is to verify the conformity of the goods from both an aesthetic and qualitative point of view.