If your posted invoice is not appearing in your cheque printing / payment processing screen it is one of three problems:
1. First check the due date and bank code (eg B1) matches the Payment Processing screen.
2. The invoice was probably entered with a due date further in the future than what you are printing invoices for. You can either change the payment procesing screen due date then press Tab and then open the invoice list tab. Or you can change the invoice due date directly via Invoice Inquiry 1.
The invoice does not have a cheque number allocated to it. If it has a cheque number allocated, it will mean that a cheque has already been run against the invoice, so the invoice won’t appear in the payment processing screen.