Warehouse orders created from requisitions are being automatically canceled.

Warehouse orders created from requisition are auto‑cancelling due to insufficient inventory.
requisitions routed to the warehouse are being automatically cancelled when inventory is insufficient, but Oracle is not generating any notification to the buyer or requestor. This results in silent failures where users are unaware that their warehouse order has been cancelled, causing operational delays and missed fulfillment. We need Oracle to provide a notification mechanism that alerts the appropriate user whenever a warehouse order is cancelled or cannot be fulfilled due to quantity shortages.