Let me share some insights about customizing invoice template in QuickBooks Online (QBO).
Currently, there isn't an option to add a column in the body of the invoice. If you wish to, you can add the cost information (cost center) in the Description column.
I've added these screenshots for additional reference.
You may also check this article to learn more about customizing templates in QBO: Customize your invoices, estimates, and sales receipts in QuickBooks Online.
I'm also adding this article for your future reference about importing custom form styles: Import custom form styles for invoices or estimates.
Stay posted if you have any other QuickBooks or invoices concerns, I'll be happy to help. Wishing you continued success!
Thank you for your response. I will make an invoice per your suggestion and see if that will work for our customer. Thanks again.