Is it possible to get a warning when overdrawing a particular currency?

You may withdraw up to the positive settled cash balance that you hold in the specific currency that you are withdrawing. If your balance in that currency is zero or negative, you cannot withdraw any amount in that currency, even if other currencies in your account have positive balances…

Although during the withdrawal hold period it is possible to execute currency conversions, you are not allowed to withdraw the newly converted funds before the withdrawal hold period expires.

An amount equivalent to the original deposit can not be withdrawn or transferred internally until the hold period expires…

When purchasing stocks in a cash account, it is important to refer to the correct financial indicators to ensure you are using the appropriate funds. Here is what you should look at:

1. Available Cash: The Available Funds value represents the amount of settled cash you have available in your Cash account to make new stock purchases without using margin…

You will need a Margin account in order to use an attached FX Hedge order. A Cash account cannot use a FX Hedge attached order because it takes IBKR a fraction of a second to see how much negative cash is in the account after the non-base currency stock order executes. Even though it would only be a short amount of time that the Cash account would be holding a negative cash balance, a loan to the account is not allowed under any circumstances. In a Cash account you will need to first execute a FX currency conversion order and then place an order for a contract denominated in a foreign currency. …