{"record":{"id":"7aacc6f2ee223371","repo":"nautechsystems/nautilus_trader","slug":"invalid-fee-amount-for-taker-fee-fee-and-notio","errorCode":null,"errorMessage":"invalid fee amount for taker_fee='{fee}' and notional='{notional}': multiplication overflow","messagePattern":"invalid fee amount for taker_fee='(.+?)' and notional='(.+?)': multiplication overflow","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/adapters/binance/src/futures/websocket/streams/parse_exec.rs","lineNumber":192,"sourceCode":"        let raw_commission = order.commission.as_deref().unwrap_or(\"0\");\n        let amount = parse_required_decimal(raw_commission, \"commission\")?;\n        let currency = order.commission_asset.as_ref().map_or(bnfcr_currency, |a| {\n            normalize_futures_asset(a.as_str(), bnfcr_currency)\n        });\n        Money::from_decimal(amount, currency)\n            .map_err(|e| anyhow::anyhow!(\"invalid commission='{raw_commission}': {e}\"))\n    } else if let Some(fee) = taker_fee {\n        let currency = quote_currency.unwrap_or_else(Currency::USDT);\n        let notional = last_qty\n            .as_decimal()\n            .checked_mul(last_px.as_decimal())\n            .ok_or_else(|| {\n                anyhow::anyhow!(\n                    \"invalid fee notional for last_qty='{last_qty}' and last_px='{last_px}': multiplication overflow\",\n                )\n            })?;\n        let amount = fee.checked_mul(notional).ok_or_else(|| {\n            anyhow::anyhow!(\n                \"invalid fee amount for taker_fee='{fee}' and notional='{notional}': multiplication overflow\"\n            )\n        })?;\n        Money::from_decimal(amount, currency)\n            .map_err(|e| anyhow::anyhow!(\"invalid fee amount='{amount}': {e}\"))\n    } else {\n        Ok(Money::zero(Currency::USDT()))\n    }\n}\n\n/// Converts a Binance Futures order update (Trade type) to a Nautilus fill report.\n///\n/// # Errors\n///\n/// Returns an error if report construction fails.\n#[expect(clippy::too_many_arguments)]\npub fn parse_futures_order_update_to_fill(\n    msg: &BinanceFuturesOrderUpdateMsg,","sourceCodeStart":174,"sourceCodeEnd":210,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/a4b06ed870971b5671d12754ea138a3ab99b1dec/crates/adapters/binance/src/futures/websocket/streams/parse_exec.rs#L174-L210","documentation":"Error \"invalid fee amount for taker_fee='{fee}' and notional='{notional}': multiplication overflow\" thrown in nautechsystems/nautilus_trader.","triggerScenarios":"Thrown at crates/adapters/binance/src/futures/websocket/streams/parse_exec.rs:192 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"a4b06ed870971b5671d12754ea138a3ab99b1dec","analyzedAt":"2026-08-16T22:54:50.089Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}