How to share Inventory Organization with multiple Requisition Business Units?

Summary:Sharing Inventory Organization with multiple Requisition Business Units

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Business Case :-

There is only one physical Inventory Organization warehouse in the business.This warehouse handles material for three different business units.

Warehouse manager wants to see all INVENTORY stock under one Org only (dont want to switch orgs).

But there are challenges in achieving this requirement

1.We can have only one management BU under Inventory Org

(so we cant assign three business units under one inventory org)

2.Meaning we can have only one Deliver to Org in Requisition Business Function

(so we have no option but to create three diff inventory org and associate it to three different requisition business units)