If the transaction has crossed ECA stage, on cancellation, the amount is released, by triggering a release block request to DDA system.

If the payment is a cross currency transfer (transfer currency & debit account currency are different) and External FX rate was fetched, the FX utilization is undone, by triggering a FX unwind request.

If the transaction is canceled from Sanction Queue on a later day, the Ring Fence block made on booking day EOD is undone, by triggering a ECA undo request to DDA system.