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Interactive Brokers TWS API message code

Interactive Brokers TWS API message code: 443 (unknown algo attribute)

The error, as text you can copy

443
Kind
TWS API message code
Where you meet it
In the TWS API, not in the Web API and not in an HTTP status
API
Interactive Brokers

What does 443 (unknown algo attribute) mean on the Interactive Brokers API?

Listed by the vendor as "Order processing failed. Unknown algo attribute". The specification for IBApi.Order.AlgoParams is incorrect.

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.

Independent and unofficialinteractivebrokers.github.iochecked

How do I fix 443 (unknown algo attribute)?

Correct IBApi.Order.AlgoParams.