Are we able to link a payment method to a certain account in Quickbooks? My main use case would be when using a personal credit card to make a business purchase, I would like it to be sent to QBO as paid and for the Credit to go to the Shareholder Loan account.

Right now, the best method I have found is to send it as unpaid so that it goes to A/P. Then in QBO I record payments of the A/P amounts from a clearing account bank account I set up in QBO. And then I enter deposits into the clearing account from the Shareholder Loan account to bring the clearing account back to zero.