Wrong lot size, order rejected, or insufficient margin

Common signs

• The receiver lot size is much larger or smaller than expected.
• Logs show Invalid volume, Invalid lot size, or similar broker rejections.
• Logs show Insufficient margin, Not enough money, or Not enough funds.
• Some symbols work while others fail because broker rules differ by symbol.

Fastest first fix

1. Open the affected connection. Go to Copiers and edit the connection.
2. Switch to a simple test mode. Use a very small fixed lot, or use a conservative lot multiplier such as `1.0` or lower.
3. Retest one symbol. Use a tiny trade and verify the receiver result in Logs.
4. Only then move back toward your preferred sizing mode. This helps separate sizing logic from broker restrictions.

What usually causes this

• The sizing mode is misunderstood or configured more aggressively than expected.
• Risk-based sizing cannot calculate correctly because stop loss data is missing or unreliable.
• The receiver broker enforces a higher minimum lot, a specific lot step, or a symbol-specific rule.
• The receiver account balance, leverage, or free margin is too different from the master.

Margin-specific checks

• Make sure the receiver has enough free margin.
• Remember that leverage can differ between master and receiver.
• Indices, crypto, and other symbols can require far more margin than standard forex pairs.

If it still fails