I m getting a following error’ an existing qb account is already linked to a bank account’ even though it is not showing. Could you please advise?

Hi, co-moisescu.

This error refers to the bank account used to connect to your online bank. We can only have one connection to a bank account in QuickBooks, so we will need to select a new or different account. 

We can connect multiple bank accounts. However, doing it simultaneously isn't possible. If the old bank account is connected online, we need to disconnect it to link it to the new one.

Also, each bank has a different way of transmitting its transactions. Hence, when connecting bank accounts to online banking, it's best to know how your bank sends the downloaded transactions beforehand.

So, if your connected bank downloads transactions to one account, you'll need to connect only the parent account. However, if the transactions download to the individual accounts, connect only the subaccounts.

We can also take a look at the articles below. This will provide you tips on how to manage multiple accounts in QuickBooks Online as well as a link to reconcile your account:

• About bank or credit card subaccount setup.
• Find your bank or credit card account when you connect to online banking.

In case we have other follow-up questions connecting your bank account, we can always tag me in your reply. I'll be here to back you up. Have a great weekend ahead!