Next Valid ID

Introduction

EWrapper.nextValidId provides the next valid identifier needed to place a new order. After initially obtaining the next valid ID, it is recommended to increment this value locally for subsequent orders within the same session rather than making repeated requests.

Request Next Valid ID

EClient.reqIds(numIds)

Requests the next valid order ID at the current moment.

self.reqIds(-1)

Receive Next Valid ID

EWrapper.nextValidId(orderId)

Receives the next valid order ID. This function is invoked automatically upon a successful connection as well as after any EClient.reqIds call.

def nextValidId(self, orderId: int):
	super().nextValidId(orderId)
	self.nextOrderId = orderId
	print("NextValidId:", orderId)

Reset Order ID Sequence

The order ID sequence can be reset from within the TWS API Settings. To do so, open TWS Global Configuration, navigate to the API Settings, and select the Reset API order ID sequence button.