Different articles can be combined to a saleable unit.
This can offer advantages during transport and also have strategic sales reasons. Depending on the article, it varies whether the sales unit is the smallest unit and whether it is possible to open the package and sell individual pieces. To determine the correct size of the sales units, areas such as marketing, distribution and logistics must weigh up together and determine the optimal size. A good example is mineral water. The individual bottles are available in sizes from 0.33 to 2 litres. They are also available individually or in groups of six.