The method trading_cancel_order should be use to cancel orders that are open on the market.
trading_cancel_order(connection, id, proprietary)S4. Mandatory Formal rRofexConnection class object
String. Mandatory clOrdId given by the trading_orders method.
String. Mandatory ID given by the trading_orders method.
PBCP
If correct, it will load a tibble.
Other order placements functions:
trading_new_order()