Helping you cut down on the time it takes to complete these tasks with QuickBooks Online (QBO) is my top priority. At this time, QBO only supports scanning receipts to upload Expense transactions from our awesome mobile app. I can see how this feature would be of great help to your business, and I'm preparing a feedback submission to send to our Development Team. They place a lot of value in the ideas of customers like yourself when deciding on how best to improve QuickBooks.
The good news is, it looks like there are a ton of third-party add-in apps available for automating your invoice entries. All you'll need to do is head to the QuickBooks App Center and search for a term like Scan Invoices. These apps are developed independently, and with so many available to download, one is sure to be a perfect fit for your business's needs.
Please reach out to me here if there's anything else I can do for you, I'm here to ensure your success. Thanks for coming to the Community, wishing you a wonderful holiday season ahead.