Interactive Brokers TWS API message code
Interactive Brokers TWS API message code: 439 (algo definition not found)
The error, as text you can copy
439- 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 439 (algo definition not found) mean on the Interactive Brokers API?
Listed by the vendor as "Order processing failed. Algorithm definition not found". Order processing failed because the algorithm definition was not found.
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.
How do I fix 439 (algo definition not found)?
Check the values given for IBApi.Order.AlgoStrategy and IBApi.Order.AlgoParams.