Please just stop and fix the problem. It's been four years and every knucklehead support moderateor that jumps on here offers no solution.  I've been setting up invoices and they have been sending in the same order that I set them up.  Now they are getting re-ordered in the PDF.  I have not seen this until now.  Furthermore, they are not ordered by date on the PDF.  I am seeing them in random date order.  

This is discouraging. I'm in the process of switching my invoicing system to QBO and the first thing I noticed was that all our line items were being displayed chronologically in the PDF instead of using the order in which I created them.  Using subtotals provides a workaround in some situations, but seriously, how hard can it be to generate a PDF without resorting the line items?

Then I found this thread only to discover this issue has been flagged with the QBO developers repeatedly for over 4 years and nothing has been done about it.  There goes my hopes for a quick fix.  Oh, and as a design studio, my other annoyance is that there are only 4 fonts to choose from. In the age of AI where Arnold Schwarzenegger now sings in the Sound Of Music, we're stuck with Helvetica. Really?  

the line items on the invoice have always re-ordered to the service date order on the PDF since I've been using QBO since 2015. Doesn't matter what you do to the lines on the screen. Doesn't matter if you make the service date the second column in the layout. QBO has so many failings and yet Intuit wants to get rid of all the desktop versions and have everyone go online. Well guess what - the online version DOES NOT WORK FOR EVERYONE AND THERE ARE WAY TOO MANY PROBLEMS WITH IT.

I called regarding invoices printing out of sequence and support has no idea how to fix it!