Use
You use plant distribution quotas in two situations:
See below.
See the prerequisites of
Features
When you copy a key figure from one information structure to another, it may be that the source information structure does not contain the characteristic "plant", but that the target information structure does contain it. In such situations, you can define how the key figure values of materials are distributed proportionally across their different plants.
If you do not enter any proportions, the system will distribute the data evenly across all plants in which the material is managed.

You want to create sales plans in standard SOP by transferring the sales quantities already planned in the Sales Information System (SIS). However, the sales quantities in SIS are not planned with reference to plants, while product groups and materials in SOP are defined in terms of their plant.
Product group PGTB contains two members: the material MTB "touring bike" in plant 1 and plant 2. The system treats them as the same planning object in the Sales Information System and as separate planning objects in standard SOP. For standard SOP, you define the proportion of this material’s sales in plant 1 as 0.7 and the proportion of sales in plant 2 as 0.3.
Activities
To define the proportional distribution of material data across plants:
You enter a material as many times as it has plants.
If a material is managed in only one plant, the proportion for this plant will be 1.

You do not have to enter proportions for each material separately, but only for materials to which the usual distribution does not apply. To specify the usual distribution, you enter the proportions of your plants leaving the material column blank.