Hello there, @ri15.
Adding a service date when creating an Invoice will print it in date order. It sorts the items from the oldest date to the latest one.
You'll want to remove the service date function when creating an invoice to print it with the line items and in the correct order.
Here's how:
- Click the Gear icon at the top right, then select Account and Settings.
- Select the Sales tab, and go to the Sales form content section.
- Remove the checkmark in the Service date box, then Save and Done.
For future reference, read through this article should you need to print multiple invoices in batches: Email or print multiple invoices and sales forms.
Let me know how it goes. I'm always around to help you more. Have a great day ahead!