The difference between Voiding and Reversing checks from the Adagio Payables check reconciliation is that reversing will generate the opposite GL transactions; voiding will not.

So if you Voided checks and wanted to actually restore the amount to the paid invoices, then you would have to post adjustments to the Vendors and those invoices. Or if the vendor information is OK but the GL accounts need to be updated, then do a journal entry batch in Ledger to reverse out those checks. Or if you have Adagio Ledger 8.0, unpost that AP batch and correct the entries, then re-post.

You cannot change the status of check reconciliation transactions once they are posted.