MT4 Debugging

Stop an EA from opening repeated trades on the same signal.

Overtrading is usually a state problem. The signal remains true across many ticks, and the EA has no memory that it already acted.

Search intent

The EA opens repeated trades and the developer needs duplicate-entry controls.

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Choose the workflow you want, then opt in so the CRM source is measurable.

Detect new signals, not persistent conditions

A condition can stay true for many ticks. Entry logic should detect a transition or a confirmed bar event.

Track previous signal state

Use new-bar checks

Avoid every-tick duplicate entries

MaxOpenTrades and cooldown rules give the EA hard limits even when signal logic fails.

MaxOpenTrades input

Cooldown minutes or bars

One trade per signal option

If the EA cannot explain why it did not open a duplicate, the gate is not observable enough.

Log existing position count

Log last entry time

Log magic number filters

Use Workfusion Debugger to add duplicate-entry and cooldown guards to your EA draft.

Related guides

Prop Firm Risk

Max open trades and cooldown for EAs

Use max-trade and cooldown controls to prevent duplicate entries and runaway exposure in Expert Advisors.

MT4 Debugging

MT4 EA magic number and order management

Use magic numbers, symbol filters, and order loops correctly in MQL4 Expert Advisors.

Compiler Fixes

MQL5 CTrade include and trade object setup

Set up the MQL5 CTrade object correctly so Buy, Sell, PositionClose, and result checks compile cleanly.