Copiers
The link between a leader account and a follower account.
A copier is one directed link: parent → follower. The parent is the leader account whose trades are the source. The follower receives copies.

The Risk column shows the sizing at a glance — Bal. Ratio 1.0000,
Eq. Ratio 1.0000, Lot × 0.2500, Fixed 0.2500 — which is the fastest way to
spot a follower configured differently from its siblings.
One link per pair, not one setting per account
This is the thing to internalise, because everything else follows from it.
Risk sizing, mode, lot caps, stop-loss handling — none of it lives on an account. It all lives on the copier. Which means:
- One leader can drive twenty followers at twenty different sizes.
- Pausing one follower does not touch the other nineteen.
- The same account can be a follower of one leader and the parent of another.
What happens when the parent trades
- The trade is detected
Trademetry sees the position open on the parent account.
- Each copier is evaluated separately
Every copier whose parent is that account gets its own pass.
- Filters run
Is the copier enabled, is it in active mode, is this symbol allowed, is the follower under its open-trade limit, is the signal fresh? Any failure stops this copier — and only this copier — with a recorded reason. See Filters and limits.
- The size is calculated
From the copier's risk type, then rounded down to the broker's lot step and capped by Max Lot. See Risk types.
- The order is placed
On the follower, with stop-loss and take-profit handled as the copier says.
Closes follow the same path: when the parent position closes, the corresponding follower positions are closed.
Copy events
Every one of those passes is recorded as a copy event, whether it resulted in
a trade or not. Open a copier and its event list shows what happened and, for
anything skipped, why — symbol_disabled, max_open_trades_reached,
copier_not_active, outside_trading_hours, and so on.
"The copy did not happen" is nearly always answerable from the copier's event list without asking anyone. A skip is recorded with its reason; a failure is recorded with the broker's error. Silence there means the parent trade never arrived, which is an account problem rather than a copier one.
Where to go next
- Create a copier — the four-step form.
- Risk types — how the follower's lot size is decided.
- Copier modes — active, monitor, and paused.
- Filters and limits — everything that can stop a copy.