It’s important that all your transactions are entered correctly so that your books are balanced. QuickBooks Online is a tool that can connect with various apps to import data from various services. I can give you information about apps.
QuickBooks Online itself cannot connect directly to your website, but it may be possible either from applications made by another developer or from your website itself. To see if there is an app available in our application selection, go to the Apps tab in your QuickBooks account, then search for the name of the provider of your website. To see if the connection is possible from your site itself, I recommend you contact their support team directly.
If you have any further questions, please feel free to ask them here.