How do I reverse the paid entry in QuickBooks for a failed ACH reimbursement?

Ramsey07 Expensify Customer Posts: 1 Expensify Newcomer
edited January 2019 in Day to Day

I have an expense of $21,000 that exported to quickbooks in August and appears as "paid" however, the banks blocked the actual transfer of funds. How do I reverse this entry in quickbooks?