If a payment was made in error on an accounts payable transaction, the payment can be removed and then re-entered correctly.
To remove the payables payment;
- Go to Supplier > Account tab
- Uncheck Current checkbox

- Find the payment transaction
- if the payment paid more than one event, then each event payment will need to be processed in next step
- Open transaction(s), click unpost, then delete
Cheque Number Retention
If you require to maintain cheque number sequence in Sandbox rather than deleting the payment record, follow this process;
- Unpost the cheque Payment
- Edit the debit and credit to $0 and click

- Edit the memo field on the transaction to show the cheque was canceled
- Re-Post the transaction
The event/transaction that the cheque was posted against will re-open and the cheque will appear on the cheque Report (Reports > Accounting > Cheque Report).