Vendors: Organizational Data in a Vendor Hierarchy 
Vendors: Organizational Data in a Vendor Hierarchy
Use
When you create or maintain a hierarchy node, you must specify organizational data. Just as with vendor master records, you specify the purchasing organization. As a rule, the organizational data of nodes within a vendor hierarchy should be identical. However, the purchasing data may vary. For example, vendors that are maintained for different purchasing organizations might be assigned to the same node.
A node is maintained, for example, in the following purchasing organization:
Purchasing organization 0001
You then assign two vendors to this hierarchy node.
The first vendor is maintained in the following purchasing organization:
Purchasing organization 0002
The second vendor is maintained in a different purchasing organization:
Purchasing organization 0001
Prerequisites
In Customizing for Purchasing (MM), you define which combinations of purchasing organization data are allowed. You do this in the activity Assign Purchasing Organization. When you assign a vendor to a node, the system checks to make sure the combination of purchasing organization data is valid.