New Invoice Not Showing Pending Invoices

When I create a new invoice, I can recall any pending invoices for my Customer at the same time.  But sometimes this prompt for the pending invoices is not showing, even when I know the Customer has pending Invoices, why not?

Solution

On the occasions when the recall screen is not showing, it is because the Invoice has been created in POS.  These invoices have to be opened from the Manage Invoice screen.  This is hard coded into the recall command.