Why does the "Not enough money" message appear when I try to open a position?

This message means that there is not enough margin on your account to open a position of the desired volume.

In order to avoid receiving the message, try to do one of the following:

1. Increase the amount of free margin on your account by depositing funds or transferring from the other account.
2. Reduce the volume of the position you want to open.
3. Close one or several open positions on your account.

How can I find out what the amount of margin required for opening a position is?

To find out the amount of margin required for opening a position, use the free Trading Calculator tool.

The formula to calculate the margin is:

<Margin> = <Size of the contract> / <Leverage>

A detailed example of how to use this formula is shown in the answer to "How can I calculate the margin?"