Northline Prop Copier

Copy your trades from one MetaTrader 5 account to your prop firm accounts - and keep every account inside its own rules. Before each copy, the slave adds up the worst case of all its open stop-losses and checks it against the daily and max-loss limits of its program. A copy that could break a rule is reduced to the safe lot, or refused, with the reason on screen and on your phone.

OVERVIEW

Copying one strategy to several prop accounts sounds simple until the accounts are not the same: a 100k challenge and a 50k funded account, different daily limits, different reset times, a second trade opened while the first one is still at risk. A plain copier sends the same order everywhere. One bad day on the master can then break the rules of every account at once.

Northline Prop Copier is a local trade copier (one Expert Advisor, role Master or Slave) built on the rules engine of Northline Prop Shield:

1. The master publishes its positions and pending orders on a channel, on the same PC or VPS.
2. Each slave copies them with its own lot size (fixed, multiplier, equity ratio, or risk % from the stop-loss), its own symbol names, and its own prop firm program.
3. Before every new exposure, the slave runs the pre-trade check: if every open stop-loss is hit, does the account stay above its daily and max-loss limits plus your safety margin? If not, the copy is reduced or refused.

WHAT MAKES IT DIFFERENT

• Prop rules on every slave. 20 ready-made programs from FTMO, FundingPips, The5ers, FundedNext, E8 Markets, Alpha Capital and Blue Guardian (official rule pages, verification date shown in the EA) plus a Custom mode: daily base, reset clock, static or trailing max loss.
• Reduce or refuse, never a blind copy. The safe lot is computed from the room left after the worst case of everything already open, fees included. A copy without a stop-loss is refused by default (unlimited worst case). A stop-loss moved wider on the master is not copied if it would cross the protection line.
• Safe when things go wrong. The slave compares states instead of replaying events: a restart, a disconnection or a broker timeout never duplicates a copy. If the master stops updating for 10 seconds, disconnects or is removed, the slave does nothing - it never closes your copies because the master went quiet.
• Hedging and netting, on both sides. A netting copy never flips its direction because a stop-loss was hit on the slave. A netting master that reverses its position is handled as a new trade.
• Local only. No DLL, no web request, no third-party server. The master writes to the common folder of MetaTrader 5, the slaves read it.

FEATURES

Copying

• Market positions, pending orders (limit, stop, stop-limit), stop-loss and take-profit changes, partial closes (in proportion), full closes
• Lot modes: fixed lot, multiplier of the master lot, ratio of equities (slave / master) x factor, risk % of the slave equity from the stop-loss
• Lots always rounded down to the broker step; below the minimum lot: skipped (or broker minimum if you allow it - still checked by the protection)
• Symbol map for different broker names (example: GER40.cash=DE40;XAUUSD=GOLD), master prefix / suffix removed, slave prefix / suffix added
• Filters: symbols to include or exclude, master magic numbers, maximum age of a trade to copy, maximum price deviation
• Several channels on one PC: one master per channel, as many slaves as you have terminals
• Lock on the master account number (set it, or the first master seen is remembered)

Prop firm protection (slave)

• 20 programs + Custom, phase 1, phase 2 or funded, account size detected from the first deposit or typed
• Your safety margins above the daily and max-loss limits (% of account size)
• Over-risk action: reduce to the safe lot, or skip the copy
• Daily or max-loss line reached: no new copy until the reset; optional close of all copies
• Panel: master status, copies and refusals, room left before the daily and max-loss lines, last events
• Push notifications (MT5 mobile app) for refusals, a silent master and protection lines - anti-spam

HOW TO USE IT

1. Run one MetaTrader 5 terminal per account on the same PC or VPS (install MT5 in separate folders, or use the portable mode).
2. On the account that trades, attach Northline Prop Copier to one chart with Role = Master and a channel name (default "main").
3. On each prop account, attach it with Role = Slave and the same channel name. Choose the lot mode, the prop firm program and the phase.
4. Check the panel of each slave: "Master live" and the room left. Your trades are now copied, inside the rules of each account.

Allow algorithmic trading on every terminal. For push notifications, enter your MetaQuotes ID in MT5 (Tools > Options > Notifications).

IMPORTANT - HONEST NOTE

Northline Prop Copier is a trade copier with a risk check. It does not trade for you and it does not promise any profit. It is not affiliated with, endorsed by or approved by any prop firm. Many firms forbid copying trades from or to other people's accounts, and some limit copying between your own accounts: check the rules of your firm before you use any copier - Northline Prop Copier has no feature to hide copying (no random delays, no lot noise). Prices differ between brokers and copies can be filled at a different price; a market gap, slippage or a disconnected terminal can still produce a larger loss - this is why your safety margins exist. Keep every terminal running (a VPS is recommended). In the Strategy Tester the EA simulates a master that opens one demonstration trade per day, so that you can watch the slave and its checks at work - it is not a trading strategy.

SUPPORT

A question, a broker naming issue or a firm you would like to see added? Send me a message - I answer quickly.