Hi there, @JLK!
It depends on how you create your invoice. Allow me to share a few insights about your full invoiced.
First, invoices created from an estimate will say invoiced in full. While created regular invoices don't say invoiced in full.
Ideally, invoices from an estimate create an open estimate once it isn't completely converted to invoices. Thus, invoiced in full reminds you if there's a need to handle an open estimate or not.
Let me know in the comment section below if you have any other questions. I'll be always around ready to help.
Once a sales order has been invoiced, it'll show INVOICED IN FULL, too. You got it right. Let me show you a screenshot on how it looks like.
In QuickBooks Online, Estimates will be marked as closed once it's invoiced in full.
Let us know if you have any questions. We'll be right here to help.