> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://ibkrcampus.com/docs/web-api/changelog/2024/4/10/llms.txt.

# IBKR WebAPI | Trading Web API

Please be aware that the Client Portal websocket topic documentation, spl+\{}, has been updated to now return "uel" instead of "el". See the [Request Profit & Loss section for more details](/campus/ibkr-api-page/cpapi-v1/#ws-pnl-sub)