Thanks for joining in on this thread @catbee. As you'll see from @AddieC's response to the original poster, an Invoice in QuickBooks Online exists in a pending state or Open until there's been a Payment received against it.There isn't a way to change the status from Open to Pending for an Invoice.
When it comes to locating the invoices that were marked as Pending in QuickBooks Desktop, it's worth checking out our article on What to expect when you switch from QuickBooks Desktop to QuickBooks Online. In the Invoices section you'll see that Progress Invoices and don't convert. The Pending sales section indicates that "Pending transactions from your QuickBooks Desktop won't convert to QuickBooks Online". Since you're having trouble locating those invoices, it's safe to say that they haven't imported into QBO. You'll want to recreate these.
One thing to consider would be creating Estimates that you can then convert to Invoices once you've gotten the go-ahead from the business' owner. You'll find the steps for how to create an Estimate as well as how to convert it in this article: Create and send estimates in QuickBooks Online.
Let me know if there's more I can do to help. In the meantime, I suggest submitting feedback on a pending Invoice feature. Our product development team wants to know what features and improvements our users want to see. Have your voice heard by navigating to the Gear icon, then choosing Feedback.
Enjoy your day!
