What a messenger service is
A messenger service sends a person to collect an item and deliver it directly to the receiver, usually the same day. The messenger keeps the item the whole way, makes no other stops and gets a signature at the end. It is the most direct way to move something urgent across town or to a nearby city.
That is different from parcel shipping, where packages are dropped off, sorted at hubs and delivered on a set route, often the next day or later. Parcel shipping works well for routine items. A messenger is for the items that cannot wait or must be handed to a specific person.
SameDayDelivery.com dispatches messengers for businesses, with a vehicle matched to the item, from a cargo van for documents to a straight truck for pallets.