Interactive Brokers TWS API message code
Interactive Brokers TWS API message code: 303 (invalid action)
The error, as text you can copy
303- 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 303 (invalid action) mean on the Interactive Brokers API?
Listed by the vendor as "Invalid action:". An action field was specified that is not available for the account. The vendor says that for most accounts this is only BUY or SELL, and that some institutional accounts also have SSHORT or SLONG available.
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 303 (invalid action)?
Use an action that is available for the account.