An additional note. This is for void check from prior / closed period (year). My general ledger accounts are correct (from posting the void and GJ entries) but it is appearing in my pay bills listing.
I hope I"m clear on this one, but did you post the reversing GJ entries in the current period? If so, that current period reversal (which would also include the vendor name) should be available to be applied to "credit or pay" the bill.
I didn't understand that you were dealing with an A/P transaction. the solution provided was intended for checks posted directly to expense accounts. see my response to your followup explanation.