Epicor 10.2.600 APInvoice

Our finance dept raised some issues. when they received the PO, they suppose to issue the APinvoice attached to that PO. But they did not do that. these po are old po 5-6 months ago. these received line not closed in GL level. Instead, they issued MIS invoices for these receiving lines.
Question, how to close these received line no invoiced properly.



research Goods Received Not Invoiced (GRNI) you should find some info on that subject.