Oracle Suggestion

 
I want to discuss two Scenarios.

Scenario 1:-

1) PO created from PR and received total qty in Inventory.
2) Invoice is created , Match with PO and Validated.
3) PO was canceled before decreasing stock and without cancel an Invoice.

Question)
What Oracle Suggest about this?

Scenario 2:-

1) PO created from PR and received total qty in Inventory.
2) Invoice is created , only Match with PO.
3) PO was canceled before decreasing stock and without cancel an Invoice.

Question)
What Oracle Suggest about this?


Regards
Farhaj Ahmed Khan