Hi user97702,

You'll want to connect your bank account with QuickBooks Online (QBO) and let the system download your recent transactions. From there, you’ll have the option to match downloaded payments to the customer's invoices.

1. Go to Banking.
2. Click on Connect or select Add account if you've already created an account.
3. Search for your bank and click on it.
4. Enter your username and password you use for your bank's website. 
5. Select the type of account you're adding (savings, current, or credit card).
6. Choose the date range for the download.
7. Click on Connect.

For more information and detailed steps, check out this link about connecting bank and credit card accounts to QBO.

Once connected, you can now match and categorise transactions in QBO.

Reach out to us if you have any other concerns. We'll be here to help. Have a good one.