Run an Alerts vs Fills review
This is not a clean-account quick start. Use it after Algo Trade Analytics has alert events and your connected Alpaca account has fill reports for the same symbol and time window.
Prerequisites
Section titled “Prerequisites”- An active Basic or Professional subscription
- An Alpaca connection in Account Integrations
- Captured webhook alerts, or a supported alert CSV
- Alpaca fill reports that overlap those alerts
- Alert and fill records whose entry and exit intent can be compared. Repeated scale-ins or overlapping position changes require manual row-level review
Review one window
Section titled “Review one window”-
Open Alerts vs Fills.
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Select one symbol and a date range that contains both alert events and fill reports. Starting with one trading session makes discrepancies easier to inspect.
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Load the alert source. Let the page retrieve the Alpaca fills for the same scope. Confirm both source counts before interpreting any match percentage.
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Review the matched, unmatched-alert, and unmatched-fill counts. If everything is unmatched, check symbol normalization, timezone, direction, and scope before widening tolerances.
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Use Show only problems in the comparison grid. Inspect the largest time, price, and quantity differences as individual records.
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Use the price chart to look for clusters by session, order type, or volatility. Do not infer a cause from an average alone.
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Save a snapshot only after you have recorded the data window, source, and matching settings. That makes a later comparison reproducible.