This category should be selected when you transfer money between business bank accounts or when you pay off your credit card from your bank account. Remember if you make a payment off a credit card from your personal bank account then you have to record this payment as a Loan to Director.
You should categorise both sides of the transfer as "Transfer between business accounts"
You may see some useful tooltips for which category to use if you're transferring to a personal account as below:
Once you are finished please click "Mark as Reviewed" and then you are done!