Streamlined will automatically map the payment back to the invoices it was directed towards and sync it with QuickBooks. In some cases, like large payments made via bank transfer (ACH) or paper checks with no remittance information, we may need help making the match. In the event this happens, you will see a Review section on the Transactions page asking for your help in making the match. Once you select the invoice(s) for that transaction, Shopify and QuickBooks will be updated.