If the accumulated position size for a given symbol copied from the Master account on the Slave account exceeds this value, this tool prevents the Trade Copier from copying new open orders from that Master, but not from other Masters.
It doesn't consider orders coming from other Masters or other sources placed directly on the Slave account.
Note: The Max Symbol Position Size per Master includes all orders created by the Trade Copier. If 'Max Symbol Position Size per Master' and 'Max Account Position Size per Master' are combined, the most restrictive value will be applied.
Learn more about Managing Advanced Copy Settings.