Can a parent and child supplier relation, create transactions for each other ( like PO, REQ, INV)

Summary:

We have a parent child relation as A= Parent and B= Child.

Can a PO of supplier A be matched to Invoice of Supplier B, or for a AP Invoice of Supplier B, can a payment be made to Supplier A.

Or do we have any other transactions possible within the relationship of supplier parent and child.

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