Control Purchase Order access based on inventory organization

Summary:

We understand the access to Purchase Orders is controlled at the Procurement BU level in Oracle Fusion. But we have a requirement to control the PO access at Inventory Organization level. Is it possible?

Content (please ensure you mask any confidential information):

The business is going to have more than 6000 inventory organizations in Oracle Fusion. There is no one-to-one relationship between inventory organization and BU. So 1 BU can have multiple Inventory Orgs under it. The stores under this BU don't want their purchase orders accessed by users of other stores. Is this possible to do by any way?

Version (include the version you are using, if applicable):