Interactive Brokers TWS API message code
Interactive Brokers TWS API message code: 10303 (invalid min trade quantity)
The error, as text you can copy
10303- 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 10303 (invalid min trade quantity) mean on the Interactive Brokers API?
Listed by the vendor as "Invalid min trade quantity value (%s). It must be a positive integer". on the vendor's page, with "not exceeding the total order size." in the notes column. The words in quotes are Interactive Brokers' own. The page's table appears to split one sentence across the two columns at a comma. The %s mark is a placeholder the page prints as it is.
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 10303 (invalid min trade quantity)?
Send a minimum trade quantity that is a positive whole number no larger than the order size, as the message says.