I paid a vendor by check for $100.00 and recorded it simply as a check charged to an expense account
No invoice or Accounts Payable entries.
Shortly after the check was cleared by the vendor, I discovered the payment shouldn't have been paid.
The vendor agreed and sent us a check for $100 as a refund.
So, how can I enter these two transactions - so I end up with a zero balance.
I can go back and redo the first entry if necessary