Best practices and reports for validating open transactions before inactivating an Inventory Org

We are consolidating two inventory organizations (transferring all on-hand from Org A into a new sub-inventory in Org B) and then plan to inactivate Org A. We could not find a seeded validation or a single consolidated report that confirms an inventory organization has no open transactions before it is inactivated.

Specifically, we'd like guidance on:

1. Is there any seeded validation that prevents an inventory organization from being inactivated while open transactions (sales orders, purchase orders, in-transit shipments, reservations, physical inventory/cycle counts) still reference it?
2. Is there a consolidated report, or a set of reports, that lists all open transactions across Inventory, Order Management, Procurement, and Costing for a given inventory organization?