ShipmentItemStoreCollection::onShipmentItemModify

public function onShipmentItemModify($action, ShipmentItem $shipmentItem, $name = null, $oldValue = null, $value = null)
{
	if ($action !== EventActions::UPDATE)
	{
		return new Result();
	}

	if ($name == "QUANTITY")
	{
		return $this->syncQuantityAfterModify($shipmentItem, $oldValue, $value);
	}

	return new Result();
}