Interactive Brokers TWS API message code
Interactive Brokers TWS API message code: 405 (child qty parent size)
The error, as text you can copy
405- Kind
- TWS API message code
- Where you meet it
- In the TWS API, not in the Web API and not in an HTTP status
What does 405 (child qty parent size) mean on the Interactive Brokers API?
Listed by the vendor as "The child order quantity should be equivalent to the parent order size". The vendor's page says only that this error is deprecated.
Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.
No fix in the source
The vendor's page gives no remedy.
That is all the source says, so this page does not invent a fix. General guidance: the other tWS API message codes recorded for Interactive Brokers, and the error lookup for the exact text of the reply you received.