Welcome to the Community, ablain102.

If your parent account is connected through bank feeds, you won't be able to connect its sub-accounts through the bank feeds feature. This occurs when a bank sends data for the entire account, including its sub-accounts, instead of sending each sub-account's data separately.

The 3-tier set up mentioned in Tori's post would mean that your parent account is not connected through the bank feeds feature. Instead, your sub-accounts would be connected. At the same time, this all depends on how your financial institution is sending transaction data for each account. If they send it all under the one parent account, then only that account can be connected. If they send it for each individual sub-account, then you can connect each sub-account.

It's also recommended that you set up each account in your Chart of Accounts prior to connecting any of them with the bank feeds feature.

I've included a post from another user which may help offer some insight into how the set up would work: Adding business credit card accounts

Please feel welcome to send a reply if there's any additional questions. Have a wonderful day!