Hi jon-westerman,
Batch invoicing is a feature that is only available in QuickBooks Desktop. For online users, you'll need to manually create each invoice one at a time. In the meantime, you can send us a product suggestion about it. Please click on the Gear icon and select Feedback.
As a workaround, you can set up a recurring invoice for each customer. Then, the system will automatically recreate it. Here's an article for a reference: How To Create A Recurring Invoice And Manage Recurring Transactions.
To learn more about QuickBooks, please post your questions here. We'll be glad to help.
