IB.cancelOrder

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cancelOrder(self, order: ib_async.order.Order, manualCancelOrderTime: str = '') -> ib_async.order.Trade | None

Completeness: fully-documented · Canonical ID: ib_async.ib.IB.cancelOrder

Explicit policy override after evidence-backed documentation review.

Related API navigation

• Calls: Client.cancelOrder
• Cancels: IB.placeOrder
• Protocol mapping: EClient.cancelOrder
• Returns: Trade
• Error reference: TWS message codes (applicability is request-dependent).

Sources and provenance

• ib-async-repository-2-1-0 (library-source; retrieved 2026-07-15T03:42:42Z)
• ib-async-repository-2-1-0 (library-source; retrieved 2026-07-15T03:42:42Z)
• ibkr-campus-tws-api (official-current; retrieved 2026-07-14T19:13:54.602937Z)

Cancel the order and return the Trade it belongs to.

Args: order: The order to be canceled. manualCancelOrderTime: For audit trail.