Should I write colli or collo on a booking form?

Carrier forms and consignment notes ask for a number of colli, using the plural whether the shipment holds one unit or fifty. A single package is technically one collo, but no European carrier form asks for a collo count — the field is standardised on the plural, and entering a figure of one against it is correct.

Read more about this topic in our article

What is a Colli in Shipping?