Definicja ad preprint zone

Smallest geographical unit in which the distribution of editions, usually ad preprints, is possible.

An ad preprint zone is a special kind of route. It is used to create a geographical structure for ad preprint distribution.

When orders for the distribution of editions are accepted, only ad preprint zones can be offered. This means an ad preprint zone is a marketing instrument used to lay down rules for obtaining orders.

You can either define the area covered by an ad preprint zone as you wish or, like insert zones, by assigning carrier routes.