Code Review
Add EA logs that explain decisions, not noise.
The best EA logs are sparse, structured, and tied to decisions. They help you identify permission, filter, signal, risk, and execution problems quickly.
Search intent
The developer wants better diagnostic logs in an MT5 EA.
Cluster
Code Review
Tool path
mql5 code review
Reader
mq5 developer
Optional follow-up for MQL5 logging and diagnostics for EAs
Open the free desk first. Opt in only if this guide matches your compiler blocker for MQL5 logging and diagnostics for EAs.
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.
Log once per decision
Avoid printing the same block reason on every tick. Log state changes and meaningful decisions.
Use consistent fields
Consistent log fields make it easier to search and compare test runs.
Keep debug mode switchable
Verbose logging helps during development but can hide real errors during longer runs.
Use the tool
Use Workfusion to add diagnostics around your EA's risk and execution path.
Related guides
Continue the EA build path.
Code Review
MQL5 OnTradeTransaction deal tracking
Use OnTradeTransaction, deal IDs, order IDs, position IDs, Magic Number filters, and history checks to debug MT5 EA fills, exits, SL/TP changes, and duplicate entries.
Code Review
Expert Advisor audit trail checklist
What to log in an Expert Advisor so trade decisions, blocked entries, and risk controls are reviewable later.
Code Review
Expert Advisor state machine design
Design EA state around waiting, signal, risk-approved, order-sent, position-open, and cooldown phases.
Compiler Fixes
MT5 EA compiles but does not trade
A structured diagnostic checklist for MT5 Expert Advisors that compile but produce no trades.