Batch invoicing is available in QuickBooks Online Advanced. If you are using a different subscription, you will need to upgrade to access this feature. This tool lets you send the same invoice to several customers at once or fill out different invoices in a single spreadsheet-style view.
Follow these steps to create multiple invoices:
Select the + New menu and choose Batch transactions. Alternatively, go to the Invoices page, select the arrow next to Create invoice, and choose Multiple invoices.
Select Invoices from the Type dropdown menu.
Choose Create in the Action menu.
Enter your invoice details on the first line. This screen works like a spreadsheet but uses the same fields as a standard invoice.