Compiler Fixes
Diagnose an MT5 EA that compiles but never opens trades.
Zero trades can come from platform permissions, symbol mismatch, spread filters, session filters, signal thresholds, invalid stops, or risk gates. Treat it as a decision pipeline problem.
Search intent
The EA compiles and runs, but Strategy Tester or a chart shows zero trades.
Cluster
Compiler Fixes
Tool path
mql5 code review
Reader
mq5 developer
Optional follow-up for MT5 EA compiles but does not trade
Open the free desk first. Opt in only if this guide matches your compiler blocker for MT5 EA compiles but does not trade.
Lead activation handoff
No email wait is required. After saving the opt-in, continue into the free desk with the same blocker so the visitor-to-lead-to-workflow path is measurable.
Continue in free deskChoose the workflow you want, then opt in only if you want Workfusionapp updates.
Separate permission from strategy
First confirm the EA is actually allowed to trade in the environment. If trading is disabled, no strategy fix will help.
Inspect filters before signals
Spread, session, max trades, and daily loss filters often block all entries. Print one concise block reason instead of guessing.
Measure signal frequency
A valid signal that appears once every year is not usable for most EA workflows. Count how often signal conditions become true.
Use the tool
Run Workfusion Code Review to classify whether the block is permission, filter, signal, or execution related.
Related guides
Continue the EA build path.
Prop Firm Risk
Spread filter for prop firm EAs
Use spread filters to prevent an EA from entering during poor execution conditions without killing all trade frequency.
Code Review
MT5 EA backtest failure triage
Classify MT5 backtest failures by compile, data, permission, frequency, execution, risk, or strategy issues.
Code Review
MQL5 logging and diagnostics for EAs
Add useful MQL5 logs that explain EA decisions without flooding the MetaTrader journal.