Copying trades between prop firm accounts, in the right order.

Start with the contract, not the software

Whether you may copy trades between prop firm accounts is decided by the firm, for that account type, in writing. It is not a technical question and no tool answers it for you.

Open the rulebook and the account agreement and search for "copy", "mirror", "duplicate", "multiple accounts" and "automated". Firms differ on whether copying between your own accounts is allowed, whether it is allowed across firms, and whether the answer changes between the evaluation and the funded stage. If a clause is ambiguous, ask support and keep the reply.

Do this before you connect anything. A copier that works perfectly on an account whose contract forbids copying has only made the breach faster. Copy trading and prop firms walks through the clauses that usually decide it.

Pick the leader

Copying has one shape: one account leads, the rest follow. The leader is where you actually trade, by hand, from a chart or from a strategy. Every fill on it is repeated on the followers.

Two things decide which account should lead. The first is platform. On Quanify the leader is a Tradovate account; TopstepX accounts can follow but cannot lead yet. The second is size. Followers are sized by a whole-number multiple of the leader, so the leader should be the account that trades the smallest size. If the leader trades 2 contracts, a follower can trade 2, 4 or 6, but never 1.

A common way round that is to lead from a demo account trading one contract, so every funded account can follow at whatever whole number suits it.

Leader

One Tradovate account. Its fills are the source of every copy.

Followers

Your other Tradovate accounts, and TopstepX accounts as followers only.

Multiplier

A whole number per follower. 1x copies the leader's quantity, 3x triples it. There is no 0.5x.

Logins

Followers can sit under different Tradovate logins from the leader. Counted per account, not per login.

Connect every login

Connecting is the slow part the first time and takes a minute after that.

1. 01Tradovate over OAuth. Sign in once per login. Each sub-account, demo or live, shows up on its own, so an evaluation and a funded account under one login are two separate accounts to set up.
2. 02TopstepX with your username and a ProjectX API key. TopstepX accounts follow with market orders only, and Live Funded TopstepX accounts cannot trade through the API at all. That is Topstep's rule, not a setting.
3. 03Name the accounts. Firm, size and stage, for example "Apex 50k eval 2". You will be muting and checking these under time pressure, and account numbers are not readable at that moment.
4. 04Leave them off. New accounts and followers start disabled. Nothing copies until you turn it on, and that is the state you want while you set multipliers.

Set the multiplier for each account

The multiplier is the only sizing decision in a copy group, so make it against the right number. That number is the distance from each account's equity to its drawdown floor, not its balance. A $50,000 account with $2,000 of room left and a $150,000 account with $4,500 left should not trade the same size, and the gap between them changes as each floor trails. Trailing drawdown explained covers why.

Work out the size each account can carry with the position size calculator, then express it as a multiple of the leader and round down.

Quanify has no daily loss cap, no maximum order size and no per-account caps. It does not track your firm's limits. The multiplier is your sizing control and the floor is yours to watch.

Test it on sim before it touches a funded account

Build the whole group against demo accounts, evaluation accounts or Quanify's own paper accounts (two per user, with commission and slippage you set). The configuration stays the same when you point it at funded accounts later, so the test is a test of the real setup.

Then trade it for a session and check each of these on every follower: the entry copied, the quantity is the leader's times the multiplier, the exit copied, a partial fill on the leader copied as a partial and not as the full order, and a flatten on the leader left every follower flat.

If one follower is wrong, it is almost always a multiplier or an account that was never switched on. Both are cheaper to find on sim.

Turn followers on one at a time

Switch on one follower, wait for a trade, confirm it at the broker, then switch on the next. It is slower than enabling everything at once and it is the only way to know which account caused a problem when there is one.

A copy group only shows as armed once the engine has confirmed every link, so an account that looks on in the list but is not armed has not been confirmed yet. Check it before the session, not during it.

Watch the first live day closely. After that, the work is mostly checking multipliers when floors move.

When something goes wrong

Know these before you need them.

Mute stops copying to one account and leaves the rest running. Use it on an account that is close to its floor or its daily limit. The kill switch flattens. Turning Quanify off does not close anything: new orders stop, and open positions stay at the broker, so check each account yourself after you stop.

Two protections run without you. A broker retry of the same execution lands once, because duplicates are caught per execution inside a 60-second window per account. And a fill older than 30 seconds is refused rather than copied late, so a reconnect after a drop does not fire an old entry into a market that has moved.

If a copy did not land, the help pages list the usual reasons, and the Discord and support@quanify.pro are there for the rest.