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Hierarchy Nodes and Business Partner
Groups 
Hierarchy nodes in the BP group hierarchy are represented by business partner groups.
In contrast to the customer hierarchy of the ERP System, the nodes cannot be equated with the business partners themselves; rather the business partners are assigned to the nodes. You can assign as many business partners as you like to a hierarchy node.
The groups in a hierarchy can have a structure consisting of several levels.
The assignment between nodes, as well as the assignment of business partners to nodes, is time-dependent. You can, for example, represent different versions of an organizational structure within a hierarchy.

You can always only create a node for one hierarchy, whereas you can reassign business partners to another hierarchy.
The nodes contain the following elements:
· Description of the hierarchy node
· Assigned business partners and the validity period of this assignment
· Higher-level nodes and the validity period of this assignment