Functional packaging is used in feeding and dosing of consumer goods such as food, medicines, cleaning products, personal care products and cosmetics. For example, the cleaning agents are sprayed with trigger pumps, dispensing pumps dispense medicines or fragrances, and feed mechanisms are needed for lipsticks or deodorant sticks, and even beverage closures often consist of several parts to be mounted. The conveying and dosing of these liquid or pasty substances partly carried out by complex functional packaging. They are produced as mass products in quantities of typically more than 10 million pieces per year on fully automated assembly systems.