Compiler Fixes

Fix CopyBuffer array out of range before trusting indicator signals.

Array out of range is a runtime bug. With indicator buffers, it often means CopyBuffer returned fewer values than the EA tried to read.

Search intent

The EA compiles but fails at runtime with array out of range around CopyBuffer or indicator arrays.

Short opt-in only. We store one source, one intent, and one new lead status. No scraped lists, no purchased contacts, no trading promises.

I agree to receive Workfusion EA builder updates and understand I can unsubscribe later.

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

Check the copied count exactly

Do not only check for -1. If the EA reads buffer[2], CopyBuffer must have copied at least three values.

requested count

copied count

return early if not enough data

ArraySetAsSeries changes how you think about current and previous bars. Confirm whether [0] means current bar in your local arrays.

ArraySetAsSeries

current bar

previous bar

When indicator data is not ready, skip the tick and log a concise reason instead of reading missing indexes.

buffer index

bar shift

_LastError

not enough bars

Paste the CopyBuffer block into Workfusion Debugger to add count checks and safer indicator reads.

Related guides

Compiler Fixes

Fix MQL5 CopyBuffer and indicator handles

Fix MT5 EA errors caused by using MQL4-style direct indicator calls instead of MQL5 handles and CopyBuffer.

Compiler Fixes

MQL5 OnInit and OnTick EA skeleton

A clean MT5 Expert Advisor skeleton structure for OnInit, OnTick, risk gates, signal checks, and execution.

Code Review

MQL5 logging and diagnostics for EAs

Add useful MQL5 logs that explain EA decisions without flooding the MetaTrader journal.