How to Run Multiple EAs on One MetaTrader Account
22nd Jul 2025A few years ago, I tried running two of my favorite expert advisors on the same MT5 account. One was a trend-follower for gold, the other a scalper for EURUSD. It seemed simple — open the terminal, attach both EAs to different charts, and let them run.
Within days, I was staring at unexpected losses. Why?
The two robots were fighting over the same open trades, modifying stop-losses, closing positions, and even overriding each other.
That experience taught me something critical:
Running multiple EAs on one account isn’t just about loading them. It’s about managing them correctly.
In this guide, I’ll show you how to do it the right way.
Can You Run Multiple EAs on One MT5 Account?
Yes, you can. MetaTrader 5 allows
multiple expert advisors to operate simultaneously on a single account.
But there’s a catch:
If you don’t configure them properly, they can interfere with each other’s trades, even if they’re working on different charts.
To avoid this, you need to understand how trade IDs, magic numbers, and symbol management work inside MT5.
Key Setup Requirements for Running Multiple EAs
Here’s what you must do before attaching more than one EA to your account:
1. Use Different Magic Numbers
Each EA assigns a “magic number” to its trades. This is a unique identifier so the EA knows which trades belong to it.
If two EAs share the same magic number (or have it set to 0), they might:
• Modify or close each other’s trades
• Miscalculate risk exposure
• Get confused when trailing stop-losses or partial closes apply
👉 Always make sure each EA has a unique magic number in its input settings.
2. Assign EAs to Separate Charts and Symbols
Even though MT5 is multi-threaded, you should:
• Open a new chart for each EA
• Apply each EA only to the asset it's meant to trade (e.g., one EA for EURUSD, another for XAUUSD)
• Avoid running two EAs on the same symbol unless you're 100% sure they manage orders independently
3. Avoid EA Conflicts on Shared Assets
If you absolutely must run two EAs on the same asset (e.g., both trade gold), ensure that:
• They use distinct magic numbers
• They operate on different timeframes
• They don’t use global variables that can affect each other
Pro tip: You can even run the same EA multiple times, if configured with different parameters and isolated trade IDs.
How Does This Relate to SMARTT?
The SMARTT system works by attaching a single, optimized robot to your live MT5 account. It follows a professional copy-trading structure where trade logic, risk, and position sizing are already defined by top-performing strategies.
Because of this precision, SMARTT
should not be run alongside other EAs on the same account.
Mixing it with another robot might disrupt signal execution and compromise risk
controls.
However, you can always test other EAs on demo accounts or separate live accounts. And if you're curious about the long-term growth of an automated strategy like SMARTT, you can use our compound growth simulator to model its impact based on real data.
👉 Try it here: compound growth simulator
Additional Tips for Smooth Multi-EA Trading
• Monitor logs for error messages or trade conflicts
• Use separate VPS instances if needed to prevent memory overload
• Limit total open trades — EAs can unknowingly over-leverage if not coordinated
• Always test in demo accounts before going live with multiple robots
Final Word
Running multiple EAs on one MetaTrader account is completely possible — and can be powerful when done right.
But like any system, it demands structure.
Use magic numbers. Separate charts. Manage symbols wisely.
And if you're using a professional automated platform like SMARTT, let it run solo on a clean MT5 account for maximum efficiency.
👉 Want to experience copy trading with no setup stress? Explore our Copy Trading.
👉 Questions about setup or compatibility? Ask us directly via Contact Us.