As part of our efforts to promote responsible trading, there are certain restrictions on the size of each trade:
1) Each instrument has a maximum number of units permitted per position.
2) Each account has a maximum exposure (invested amount x leverage) permitted per leverage tier on each instrument. This is in place to help mitigate the risks of trading with high leverage.
If you are trying to open a position which would take your account's net exposure in open positions beyond the permitted limit, you will receive the following error message: "Unable to open position. Your exposure level with the selected leverage is too high. Try using lower leverage." You can try opening the position with a lower invested amount, or with lower leverage.