How can I uncancel an invoice? Unaccounted, invalid status. Creating an exception to period close.

Summary: Need to correct accounting distribution in cancelled invoices and clear Payables journal entries with invalid status (created from cancelled invoices).

Content (required): Project info entered in the requisition caused an override of PO accounts when invoicing, causing an error in accounting (no cost center for expense account on tax lines). Could not validate accounting, cancelled invoice (twice) to try to correct in PO. Now there are invalid Payables journal entries and errors on the cancelled invoices, which will prevent month-end close.

How can we correct the accounting on the cancelled invoice? And will this correct the invalid Payables journal entries? Or do we need to find a way to delete those as well?