Distribute Wares is a default behavior you can set on your trading vessels. When selecting this behavior, you will be asked to specify one or more wares which the vessel will be responsible for distributing. The wares will be sourced from ???. The wares will be distributed to ???. Buy and or sell price will or will not be taken into account when buying and selling???
Distribute Wares is one of the several default behaviors available for trading ships. It requires the pilot-commander to have 2 stars of overall skill. According to the description, this default behavior buys wares produced at a production station, and sells them at several consumer stations, hence the name "Distribute Wares".