When you cancel an invoice on a closed period via Invoice approval form and then create another invoice register with the same invoice number the invoice journal (Accounts payable >> Inquiries and reports >> Invoice >> Invoice journal) shows the same vendor approval voucher number, even though the cancelled invoice has nothing to do with the vendor approval voucher.

The right behavior in my opinion should be to show the invoice register voucher number for the cancelled transaction and the invoice approval voucher number for the second transaction which later got final posted.

If you go into the Vendor transaction form for these kinds of transactions, D365 have the right behavior in my opinion, it shows the voucher number for invoice register for the cancelled one, and invoice approval for the final posted transaction.

We have a customer with this problem and sent a bug report to you and here is the number for the product team's review: KB 794497.