Preflight Checks for MT5 Order Parameters
Summary
This document describes a read-only diagnostic for checking hypothetical MetaTrader 5 orders against the current rules advertised for a chart symbol. It covers market, limit, and stop order types; symbol trading restrictions; available quotes; volume limits and increments; pending-price tick alignment and minimum distance; protective stop distances; and supported filling policies. The report marks checks as passing, warning, or failing and can be viewed in the Experts tab or saved as text.
The example shows a volume that passes range and increment checks while a stop loss fails because its distance is below the advertised minimum. The tool is intended to help isolate request configuration problems before integrating or testing values in a larger expert advisor. Its checks only reflect inspected symbol metadata: passing cannot guarantee server acceptance, execution price, or trading results, and market conditions or broker rules may change before an order is sent. The document also notes that the report omits account and trading-history details, while advising users to review it before sharing.
Key ideas
- A read-only preflight can identify order values that conflict with current symbol metadata.
- The checks include order type, trading restrictions, volume alignment, pending prices, stops, and filling flags.
- A passing result does not guarantee that a later request will be accepted or executed as expected.
- The example demonstrates how a stop distance can fail even when volume checks pass.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.