To Cancel or Void a transaction, you will need to enter an approval password. Click the more options button to the right of Print Receipt and choose Cancel or Void. On choosing one of these options, you will be prompted to enter the approval password.
Use the Cancel option to return line items to stock and issue store credit or a refund for any payments made on the transaction.
Use Void to remove all information associated with the transaction, including all line items and payments.