Can You Copy Trades Between MT4 and MT5? Questions to Ask Before Choosing a Copier

Yes, a mixed MT4 and MT5 setup can be possible, but the useful question is not simply whether a product says MT4 and MT5. Ask how the two terminals communicate, which EA belongs on each side, and what happens when the accounts use different symbol names or account modes.

Ask about both ends of the connection

You need to know which EA runs on the master and which one runs on the follower. Also ask whether the setup requires a local bridge, a signal server, or a particular terminal arrangement.

Ask about trade differences

Check how the copier handles lot sizing, stop levels, pending orders, and partial closes across the two platforms. A mixed-platform demo is worth more than a generic compatibility badge.

Ask what the logs show

When a trade is skipped, you need a reason you can act on: symbol missing, permission, volume rule, connection, or account mode. Clear logs make troubleshooting much less frustrating.

A sensible way to test it

Write down the expected result before sending the demo trade.
Check the terminal history and the copier logs, not only the chart.
Change one setting at a time so you know which adjustment fixed the issue.

TradeCopierr is designed to make the copying route easier to inspect, but the final setup still depends on your broker, account type, symbols, permissions, and chosen settings. Use a demo account while you are learning the behavior, then decide whether the setup is appropriate for your own risk plan.