Set up Accounts Payable
To designate an account as an Accounts Payable Account, it must be a liability account type.
To mark the account, go to Ledger & Payables→ Accounts, find the liability account and check the Accounts Payable option toward the bottom of the screen. Then, click Submit.
Note: If you have more than one Accounts Payable Account, you may want to select the one you use the most as your Default Accounts Payable Account.