How trade copying works
How RobotCopier sizes volume to each follower, maps symbols across brokers, and mirrors stops and closes.
When a master places a trade, RobotCopier copies it to each linked follower — but it doesn't just blindly repeat the same numbers. It adapts each trade to the follower.
Volume (lot sizing)
Copied volume is scaled to the follower and then snapped to the follower broker's volume rules (minimum lot, lot step, maximum lot) so an order is never rejected for an invalid volume. You choose the sizing mode per relationship (e.g. proportional to balance, or a fixed multiplier).
Symbols
Brokers name instruments differently. RobotCopier automatically resolves common
differences (for example EURUSD+ on the master to EURUSD on the follower). Where
names differ in a way it can't infer (for example BTCUSDT vs BTCUSD, or US500
vs SPX500), you add an explicit symbol mapping — the copy either uses your
mapping or fails clearly; it will never open the wrong instrument.
Stops, targets and closes
Stop-loss and take-profit are mirrored, and closes/partial-closes on the master are reproduced on the follower. Every copy — success or failure — is journaled with a receipt so nothing is dropped silently.