Unified Cost across different business units

Summary:

Hello,

I want to make sure of a huge point.

I am implementing by a customer, we have 10 different business units. but they need an unified cost for the items across all organizations/business units.

Let's assume that we have 10 BUs, each one has 10 Inventory Organizations, so I created the 100 organizations, each one under its correspondant BU, but I used 1 BU to be selected in the "Profit Center Business Unit" so I can use the whole 100 organizations under the same cost org and cost book association.

It went well so far and I can see unified cost, but is there any side effects or drawbacks in this solution?